From dfe3d695334e1300d01e5e4db90e19733c4ac470 Mon Sep 17 00:00:00 2001 From: des Date: Wed, 20 Jan 2016 23:08:57 +0000 Subject: Remove a number of generated files which are either out-of-date (because they are never regenerated to reflect our changes) or in the way of freebsd-configure.sh. --- crypto/openssh/config.h.in | 1729 --- crypto/openssh/configure | 20111 ----------------------------------- crypto/openssh/moduli.0 | 74 - crypto/openssh/scp.0 | 165 - crypto/openssh/sftp-server.0 | 96 - crypto/openssh/sftp.0 | 383 - crypto/openssh/ssh-add.0 | 129 - crypto/openssh/ssh-agent.0 | 112 - crypto/openssh/ssh-keygen.0 | 566 - crypto/openssh/ssh-keyscan.0 | 109 - crypto/openssh/ssh-keysign.0 | 53 - crypto/openssh/ssh-pkcs11-helper.0 | 25 - crypto/openssh/ssh.0 | 972 -- crypto/openssh/ssh_config.0 | 1026 -- crypto/openssh/sshd.0 | 640 -- crypto/openssh/sshd_config.0 | 1052 -- 16 files changed, 27242 deletions(-) delete mode 100644 crypto/openssh/config.h.in delete mode 100755 crypto/openssh/configure delete mode 100644 crypto/openssh/moduli.0 delete mode 100644 crypto/openssh/scp.0 delete mode 100644 crypto/openssh/sftp-server.0 delete mode 100644 crypto/openssh/sftp.0 delete mode 100644 crypto/openssh/ssh-add.0 delete mode 100644 crypto/openssh/ssh-agent.0 delete mode 100644 crypto/openssh/ssh-keygen.0 delete mode 100644 crypto/openssh/ssh-keyscan.0 delete mode 100644 crypto/openssh/ssh-keysign.0 delete mode 100644 crypto/openssh/ssh-pkcs11-helper.0 delete mode 100644 crypto/openssh/ssh.0 delete mode 100644 crypto/openssh/ssh_config.0 delete mode 100644 crypto/openssh/sshd.0 delete mode 100644 crypto/openssh/sshd_config.0 (limited to 'crypto') diff --git a/crypto/openssh/config.h.in b/crypto/openssh/config.h.in deleted file mode 100644 index 86d32d4..0000000 --- a/crypto/openssh/config.h.in +++ /dev/null @@ -1,1729 +0,0 @@ -/* config.h.in. Generated from configure.ac by autoheader. */ - -/* Define if building universal (internal helper macro) */ -#undef AC_APPLE_UNIVERSAL_BUILD - -/* Define if you have a getaddrinfo that fails for the all-zeros IPv6 address - */ -#undef AIX_GETNAMEINFO_HACK - -/* Define if your AIX loginfailed() function takes 4 arguments (AIX >= 5.2) */ -#undef AIX_LOGINFAILED_4ARG - -/* System only supports IPv4 audit records */ -#undef AU_IPv4 - -/* Define if your resolver libs need this for getrrsetbyname */ -#undef BIND_8_COMPAT - -/* The system has incomplete BSM API */ -#undef BROKEN_BSM_API - -/* Define if cmsg_type is not passed correctly */ -#undef BROKEN_CMSG_TYPE - -/* getaddrinfo is broken (if present) */ -#undef BROKEN_GETADDRINFO - -/* getgroups(0,NULL) will return -1 */ -#undef BROKEN_GETGROUPS - -/* FreeBSD glob does not do what we need */ -#undef BROKEN_GLOB - -/* Define if you system's inet_ntoa is busted (e.g. Irix gcc issue) */ -#undef BROKEN_INET_NTOA - -/* ia_uinfo routines not supported by OS yet */ -#undef BROKEN_LIBIAF - -/* Ultrix mmap can't map files */ -#undef BROKEN_MMAP - -/* Define if your struct dirent expects you to allocate extra space for d_name - */ -#undef BROKEN_ONE_BYTE_DIRENT_D_NAME - -/* Can't do comparisons on readv */ -#undef BROKEN_READV_COMPARISON - -/* NetBSD read function is sometimes redirected, breaking atomicio comparisons - against it */ -#undef BROKEN_READ_COMPARISON - -/* realpath does not work with nonexistent files */ -#undef BROKEN_REALPATH - -/* Needed for NeXT */ -#undef BROKEN_SAVED_UIDS - -/* Define if your setregid() is broken */ -#undef BROKEN_SETREGID - -/* Define if your setresgid() is broken */ -#undef BROKEN_SETRESGID - -/* Define if your setresuid() is broken */ -#undef BROKEN_SETRESUID - -/* Define if your setreuid() is broken */ -#undef BROKEN_SETREUID - -/* LynxOS has broken setvbuf() implementation */ -#undef BROKEN_SETVBUF - -/* QNX shadow support is broken */ -#undef BROKEN_SHADOW_EXPIRE - -/* Define if your snprintf is busted */ -#undef BROKEN_SNPRINTF - -/* FreeBSD strnvis argument order is swapped compared to OpenBSD */ -#undef BROKEN_STRNVIS - -/* tcgetattr with ICANON may hang */ -#undef BROKEN_TCGETATTR_ICANON - -/* updwtmpx is broken (if present) */ -#undef BROKEN_UPDWTMPX - -/* Define if you have BSD auth support */ -#undef BSD_AUTH - -/* Define if you want to specify the path to your lastlog file */ -#undef CONF_LASTLOG_FILE - -/* Define if you want to specify the path to your utmp file */ -#undef CONF_UTMP_FILE - -/* Define if you want to specify the path to your wtmpx file */ -#undef CONF_WTMPX_FILE - -/* Define if you want to specify the path to your wtmp file */ -#undef CONF_WTMP_FILE - -/* Define if your platform needs to skip post auth file descriptor passing */ -#undef DISABLE_FD_PASSING - -/* Define if you don't want to use lastlog */ -#undef DISABLE_LASTLOG - -/* Define if you don't want to use your system's login() call */ -#undef DISABLE_LOGIN - -/* Define if you don't want to use pututline() etc. to write [uw]tmp */ -#undef DISABLE_PUTUTLINE - -/* Define if you don't want to use pututxline() etc. to write [uw]tmpx */ -#undef DISABLE_PUTUTXLINE - -/* Define if you want to disable shadow passwords */ -#undef DISABLE_SHADOW - -/* Define if you don't want to use utmp */ -#undef DISABLE_UTMP - -/* Define if you don't want to use utmpx */ -#undef DISABLE_UTMPX - -/* Define if you don't want to use wtmp */ -#undef DISABLE_WTMP - -/* Define if you don't want to use wtmpx */ -#undef DISABLE_WTMPX - -/* Enable for PKCS#11 support */ -#undef ENABLE_PKCS11 - -/* File names may not contain backslash characters */ -#undef FILESYSTEM_NO_BACKSLASH - -/* fsid_t has member val */ -#undef FSID_HAS_VAL - -/* fsid_t has member __val */ -#undef FSID_HAS___VAL - -/* Define to 1 if the `getpgrp' function requires zero arguments. */ -#undef GETPGRP_VOID - -/* Conflicting defs for getspnam */ -#undef GETSPNAM_CONFLICTING_DEFS - -/* Define if your system glob() function has the GLOB_ALTDIRFUNC extension */ -#undef GLOB_HAS_ALTDIRFUNC - -/* Define if your system glob() function has gl_matchc options in glob_t */ -#undef GLOB_HAS_GL_MATCHC - -/* Define if your system glob() function has gl_statv options in glob_t */ -#undef GLOB_HAS_GL_STATV - -/* Define this if you want GSSAPI support in the version 2 protocol */ -#undef GSSAPI - -/* Define if you want to use shadow password expire field */ -#undef HAS_SHADOW_EXPIRE - -/* Define if your system uses access rights style file descriptor passing */ -#undef HAVE_ACCRIGHTS_IN_MSGHDR - -/* Define if you have ut_addr in utmp.h */ -#undef HAVE_ADDR_IN_UTMP - -/* Define if you have ut_addr in utmpx.h */ -#undef HAVE_ADDR_IN_UTMPX - -/* Define if you have ut_addr_v6 in utmp.h */ -#undef HAVE_ADDR_V6_IN_UTMP - -/* Define if you have ut_addr_v6 in utmpx.h */ -#undef HAVE_ADDR_V6_IN_UTMPX - -/* Define to 1 if you have the `arc4random' function. */ -#undef HAVE_ARC4RANDOM - -/* Define to 1 if you have the `arc4random_buf' function. */ -#undef HAVE_ARC4RANDOM_BUF - -/* Define to 1 if you have the `arc4random_stir' function. */ -#undef HAVE_ARC4RANDOM_STIR - -/* Define to 1 if you have the `arc4random_uniform' function. */ -#undef HAVE_ARC4RANDOM_UNIFORM - -/* Define to 1 if you have the `asprintf' function. */ -#undef HAVE_ASPRINTF - -/* OpenBSD's gcc has bounded */ -#undef HAVE_ATTRIBUTE__BOUNDED__ - -/* Have attribute nonnull */ -#undef HAVE_ATTRIBUTE__NONNULL__ - -/* OpenBSD's gcc has sentinel */ -#undef HAVE_ATTRIBUTE__SENTINEL__ - -/* Define to 1 if you have the `aug_get_machine' function. */ -#undef HAVE_AUG_GET_MACHINE - -/* Define to 1 if you have the `b64_ntop' function. */ -#undef HAVE_B64_NTOP - -/* Define to 1 if you have the `b64_pton' function. */ -#undef HAVE_B64_PTON - -/* Define if you have the basename function. */ -#undef HAVE_BASENAME - -/* Define to 1 if you have the `bcopy' function. */ -#undef HAVE_BCOPY - -/* Define to 1 if you have the `bcrypt_pbkdf' function. */ -#undef HAVE_BCRYPT_PBKDF - -/* Define to 1 if you have the `bindresvport_sa' function. */ -#undef HAVE_BINDRESVPORT_SA - -/* Define to 1 if you have the `blf_enc' function. */ -#undef HAVE_BLF_ENC - -/* Define to 1 if you have the header file. */ -#undef HAVE_BLF_H - -/* Define to 1 if you have the `Blowfish_expand0state' function. */ -#undef HAVE_BLOWFISH_EXPAND0STATE - -/* Define to 1 if you have the `Blowfish_expandstate' function. */ -#undef HAVE_BLOWFISH_EXPANDSTATE - -/* Define to 1 if you have the `Blowfish_initstate' function. */ -#undef HAVE_BLOWFISH_INITSTATE - -/* Define to 1 if you have the `Blowfish_stream2word' function. */ -#undef HAVE_BLOWFISH_STREAM2WORD - -/* Define to 1 if you have the `BN_is_prime_ex' function. */ -#undef HAVE_BN_IS_PRIME_EX - -/* Define to 1 if you have the header file. */ -#undef HAVE_BSD_LIBUTIL_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_BSM_AUDIT_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_BSTRING_H - -/* Define to 1 if you have the `cap_rights_limit' function. */ -#undef HAVE_CAP_RIGHTS_LIMIT - -/* Define to 1 if you have the `clock' function. */ -#undef HAVE_CLOCK - -/* Have clock_gettime */ -#undef HAVE_CLOCK_GETTIME - -/* define if you have clock_t data type */ -#undef HAVE_CLOCK_T - -/* Define to 1 if you have the `closefrom' function. */ -#undef HAVE_CLOSEFROM - -/* Define if gai_strerror() returns const char * */ -#undef HAVE_CONST_GAI_STRERROR_PROTO - -/* Define if your system uses ancillary data style file descriptor passing */ -#undef HAVE_CONTROL_IN_MSGHDR - -/* Define to 1 if you have the `crypt' function. */ -#undef HAVE_CRYPT - -/* Define to 1 if you have the header file. */ -#undef HAVE_CRYPTO_SHA2_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_CRYPT_H - -/* Define if you are on Cygwin */ -#undef HAVE_CYGWIN - -/* Define if your libraries define daemon() */ -#undef HAVE_DAEMON - -/* Define to 1 if you have the declaration of `AI_NUMERICSERV', and to 0 if - you don't. */ -#undef HAVE_DECL_AI_NUMERICSERV - -/* Define to 1 if you have the declaration of `authenticate', and to 0 if you - don't. */ -#undef HAVE_DECL_AUTHENTICATE - -/* Define to 1 if you have the declaration of `GLOB_NOMATCH', and to 0 if you - don't. */ -#undef HAVE_DECL_GLOB_NOMATCH - -/* Define to 1 if you have the declaration of `GSS_C_NT_HOSTBASED_SERVICE', - and to 0 if you don't. */ -#undef HAVE_DECL_GSS_C_NT_HOSTBASED_SERVICE - -/* Define to 1 if you have the declaration of `howmany', and to 0 if you - don't. */ -#undef HAVE_DECL_HOWMANY - -/* Define to 1 if you have the declaration of `h_errno', and to 0 if you - don't. */ -#undef HAVE_DECL_H_ERRNO - -/* Define to 1 if you have the declaration of `loginfailed', and to 0 if you - don't. */ -#undef HAVE_DECL_LOGINFAILED - -/* Define to 1 if you have the declaration of `loginrestrictions', and to 0 if - you don't. */ -#undef HAVE_DECL_LOGINRESTRICTIONS - -/* Define to 1 if you have the declaration of `loginsuccess', and to 0 if you - don't. */ -#undef HAVE_DECL_LOGINSUCCESS - -/* Define to 1 if you have the declaration of `MAXSYMLINKS', and to 0 if you - don't. */ -#undef HAVE_DECL_MAXSYMLINKS - -/* Define to 1 if you have the declaration of `NFDBITS', and to 0 if you - don't. */ -#undef HAVE_DECL_NFDBITS - -/* Define to 1 if you have the declaration of `offsetof', and to 0 if you - don't. */ -#undef HAVE_DECL_OFFSETOF - -/* Define to 1 if you have the declaration of `O_NONBLOCK', and to 0 if you - don't. */ -#undef HAVE_DECL_O_NONBLOCK - -/* Define to 1 if you have the declaration of `passwdexpired', and to 0 if you - don't. */ -#undef HAVE_DECL_PASSWDEXPIRED - -/* Define to 1 if you have the declaration of `setauthdb', and to 0 if you - don't. */ -#undef HAVE_DECL_SETAUTHDB - -/* Define to 1 if you have the declaration of `SHUT_RD', and to 0 if you - don't. */ -#undef HAVE_DECL_SHUT_RD - -/* Define to 1 if you have the declaration of `writev', and to 0 if you don't. - */ -#undef HAVE_DECL_WRITEV - -/* Define to 1 if you have the declaration of `_getlong', and to 0 if you - don't. */ -#undef HAVE_DECL__GETLONG - -/* Define to 1 if you have the declaration of `_getshort', and to 0 if you - don't. */ -#undef HAVE_DECL__GETSHORT - -/* Define to 1 if you have the `DES_crypt' function. */ -#undef HAVE_DES_CRYPT - -/* Define if you have /dev/ptmx */ -#undef HAVE_DEV_PTMX - -/* Define if you have /dev/ptc */ -#undef HAVE_DEV_PTS_AND_PTC - -/* Define to 1 if you have the header file. */ -#undef HAVE_DIRENT_H - -/* Define to 1 if you have the `dirfd' function. */ -#undef HAVE_DIRFD - -/* Define to 1 if you have the `dirname' function. */ -#undef HAVE_DIRNAME - -/* Define to 1 if you have the `DSA_generate_parameters_ex' function. */ -#undef HAVE_DSA_GENERATE_PARAMETERS_EX - -/* Define to 1 if you have the header file. */ -#undef HAVE_ELF_H - -/* Define to 1 if you have the `endgrent' function. */ -#undef HAVE_ENDGRENT - -/* Define to 1 if you have the header file. */ -#undef HAVE_ENDIAN_H - -/* Define to 1 if you have the `endutent' function. */ -#undef HAVE_ENDUTENT - -/* Define to 1 if you have the `endutxent' function. */ -#undef HAVE_ENDUTXENT - -/* Define if your system has /etc/default/login */ -#undef HAVE_ETC_DEFAULT_LOGIN - -/* Define if libcrypto has EVP_CIPHER_CTX_ctrl */ -#undef HAVE_EVP_CIPHER_CTX_CTRL - -/* Define to 1 if you have the `EVP_DigestFinal_ex' function. */ -#undef HAVE_EVP_DIGESTFINAL_EX - -/* Define to 1 if you have the `EVP_DigestInit_ex' function. */ -#undef HAVE_EVP_DIGESTINIT_EX - -/* Define to 1 if you have the `EVP_MD_CTX_cleanup' function. */ -#undef HAVE_EVP_MD_CTX_CLEANUP - -/* Define to 1 if you have the `EVP_MD_CTX_copy_ex' function. */ -#undef HAVE_EVP_MD_CTX_COPY_EX - -/* Define to 1 if you have the `EVP_MD_CTX_init' function. */ -#undef HAVE_EVP_MD_CTX_INIT - -/* Define to 1 if you have the `EVP_ripemd160' function. */ -#undef HAVE_EVP_RIPEMD160 - -/* Define to 1 if you have the `EVP_sha256' function. */ -#undef HAVE_EVP_SHA256 - -/* Define if you have ut_exit in utmp.h */ -#undef HAVE_EXIT_IN_UTMP - -/* Define to 1 if you have the `explicit_bzero' function. */ -#undef HAVE_EXPLICIT_BZERO - -/* Define to 1 if you have the `fchmod' function. */ -#undef HAVE_FCHMOD - -/* Define to 1 if you have the `fchown' function. */ -#undef HAVE_FCHOWN - -/* Use F_CLOSEM fcntl for closefrom */ -#undef HAVE_FCNTL_CLOSEM - -/* Define to 1 if you have the header file. */ -#undef HAVE_FCNTL_H - -/* Define to 1 if the system has the type `fd_mask'. */ -#undef HAVE_FD_MASK - -/* Define to 1 if you have the header file. */ -#undef HAVE_FEATURES_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_FLOATINGPOINT_H - -/* Define to 1 if you have the `fmt_scaled' function. */ -#undef HAVE_FMT_SCALED - -/* Define to 1 if you have the `freeaddrinfo' function. */ -#undef HAVE_FREEADDRINFO - -/* Define to 1 if the system has the type `fsblkcnt_t'. */ -#undef HAVE_FSBLKCNT_T - -/* Define to 1 if the system has the type `fsfilcnt_t'. */ -#undef HAVE_FSFILCNT_T - -/* Define to 1 if you have the `fstatfs' function. */ -#undef HAVE_FSTATFS - -/* Define to 1 if you have the `fstatvfs' function. */ -#undef HAVE_FSTATVFS - -/* Define to 1 if you have the `futimes' function. */ -#undef HAVE_FUTIMES - -/* Define to 1 if you have the `gai_strerror' function. */ -#undef HAVE_GAI_STRERROR - -/* Define to 1 if you have the `getaddrinfo' function. */ -#undef HAVE_GETADDRINFO - -/* Define to 1 if you have the `getaudit' function. */ -#undef HAVE_GETAUDIT - -/* Define to 1 if you have the `getaudit_addr' function. */ -#undef HAVE_GETAUDIT_ADDR - -/* Define to 1 if you have the `getcwd' function. */ -#undef HAVE_GETCWD - -/* Define to 1 if you have the `getgrouplist' function. */ -#undef HAVE_GETGROUPLIST - -/* Define to 1 if you have the `getgrset' function. */ -#undef HAVE_GETGRSET - -/* Define to 1 if you have the `getlastlogxbyname' function. */ -#undef HAVE_GETLASTLOGXBYNAME - -/* Define to 1 if you have the `getluid' function. */ -#undef HAVE_GETLUID - -/* Define to 1 if you have the `getnameinfo' function. */ -#undef HAVE_GETNAMEINFO - -/* Define to 1 if you have the `getopt' function. */ -#undef HAVE_GETOPT - -/* Define to 1 if you have the header file. */ -#undef HAVE_GETOPT_H - -/* Define if your getopt(3) defines and uses optreset */ -#undef HAVE_GETOPT_OPTRESET - -/* Define if your libraries define getpagesize() */ -#undef HAVE_GETPAGESIZE - -/* Define to 1 if you have the `getpeereid' function. */ -#undef HAVE_GETPEEREID - -/* Define to 1 if you have the `getpeerucred' function. */ -#undef HAVE_GETPEERUCRED - -/* Define to 1 if you have the `getpgid' function. */ -#undef HAVE_GETPGID - -/* Define to 1 if you have the `getpgrp' function. */ -#undef HAVE_GETPGRP - -/* Define to 1 if you have the `getpwanam' function. */ -#undef HAVE_GETPWANAM - -/* Define to 1 if you have the `getrlimit' function. */ -#undef HAVE_GETRLIMIT - -/* Define if getrrsetbyname() exists */ -#undef HAVE_GETRRSETBYNAME - -/* Define to 1 if you have the `getrusage' function. */ -#undef HAVE_GETRUSAGE - -/* Define to 1 if you have the `getseuserbyname' function. */ -#undef HAVE_GETSEUSERBYNAME - -/* Define to 1 if you have the `gettimeofday' function. */ -#undef HAVE_GETTIMEOFDAY - -/* Define to 1 if you have the `getttyent' function. */ -#undef HAVE_GETTTYENT - -/* Define to 1 if you have the `getutent' function. */ -#undef HAVE_GETUTENT - -/* Define to 1 if you have the `getutid' function. */ -#undef HAVE_GETUTID - -/* Define to 1 if you have the `getutline' function. */ -#undef HAVE_GETUTLINE - -/* Define to 1 if you have the `getutxent' function. */ -#undef HAVE_GETUTXENT - -/* Define to 1 if you have the `getutxid' function. */ -#undef HAVE_GETUTXID - -/* Define to 1 if you have the `getutxline' function. */ -#undef HAVE_GETUTXLINE - -/* Define to 1 if you have the `getutxuser' function. */ -#undef HAVE_GETUTXUSER - -/* Define to 1 if you have the `get_default_context_with_level' function. */ -#undef HAVE_GET_DEFAULT_CONTEXT_WITH_LEVEL - -/* Define to 1 if you have the `glob' function. */ -#undef HAVE_GLOB - -/* Define to 1 if you have the header file. */ -#undef HAVE_GLOB_H - -/* Define to 1 if you have the `group_from_gid' function. */ -#undef HAVE_GROUP_FROM_GID - -/* Define to 1 if you have the header file. */ -#undef HAVE_GSSAPI_GENERIC_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_GSSAPI_GSSAPI_GENERIC_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_GSSAPI_GSSAPI_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_GSSAPI_GSSAPI_KRB5_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_GSSAPI_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_GSSAPI_KRB5_H - -/* Define if HEADER.ad exists in arpa/nameser.h */ -#undef HAVE_HEADER_AD - -/* Define to 1 if you have the `HMAC_CTX_init' function. */ -#undef HAVE_HMAC_CTX_INIT - -/* Define if you have ut_host in utmp.h */ -#undef HAVE_HOST_IN_UTMP - -/* Define if you have ut_host in utmpx.h */ -#undef HAVE_HOST_IN_UTMPX - -/* Define to 1 if you have the header file. */ -#undef HAVE_IAF_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_IA_H - -/* Define if you have ut_id in utmp.h */ -#undef HAVE_ID_IN_UTMP - -/* Define if you have ut_id in utmpx.h */ -#undef HAVE_ID_IN_UTMPX - -/* Define to 1 if you have the `inet_aton' function. */ -#undef HAVE_INET_ATON - -/* Define to 1 if you have the `inet_ntoa' function. */ -#undef HAVE_INET_NTOA - -/* Define to 1 if you have the `inet_ntop' function. */ -#undef HAVE_INET_NTOP - -/* Define to 1 if you have the `innetgr' function. */ -#undef HAVE_INNETGR - -/* define if you have int64_t data type */ -#undef HAVE_INT64_T - -/* Define to 1 if the system has the type `intmax_t'. */ -#undef HAVE_INTMAX_T - -/* Define to 1 if you have the header file. */ -#undef HAVE_INTTYPES_H - -/* define if you have intxx_t data type */ -#undef HAVE_INTXX_T - -/* Define to 1 if the system has the type `in_addr_t'. */ -#undef HAVE_IN_ADDR_T - -/* Define to 1 if the system has the type `in_port_t'. */ -#undef HAVE_IN_PORT_T - -/* Define if you have isblank(3C). */ -#undef HAVE_ISBLANK - -/* Define to 1 if you have the `krb5_cc_new_unique' function. */ -#undef HAVE_KRB5_CC_NEW_UNIQUE - -/* Define to 1 if you have the `krb5_free_error_message' function. */ -#undef HAVE_KRB5_FREE_ERROR_MESSAGE - -/* Define to 1 if you have the `krb5_get_error_message' function. */ -#undef HAVE_KRB5_GET_ERROR_MESSAGE - -/* Define to 1 if you have the header file. */ -#undef HAVE_LASTLOG_H - -/* Define if you want ldns support */ -#undef HAVE_LDNS - -/* Define to 1 if you have the header file. */ -#undef HAVE_LIBAUDIT_H - -/* Define to 1 if you have the `bsm' library (-lbsm). */ -#undef HAVE_LIBBSM - -/* Define to 1 if you have the `crypt' library (-lcrypt). */ -#undef HAVE_LIBCRYPT - -/* Define to 1 if you have the `dl' library (-ldl). */ -#undef HAVE_LIBDL - -/* Define to 1 if you have the header file. */ -#undef HAVE_LIBGEN_H - -/* Define if system has libiaf that supports set_id */ -#undef HAVE_LIBIAF - -/* Define to 1 if you have the `network' library (-lnetwork). */ -#undef HAVE_LIBNETWORK - -/* Define to 1 if you have the `nsl' library (-lnsl). */ -#undef HAVE_LIBNSL - -/* Define to 1 if you have the `pam' library (-lpam). */ -#undef HAVE_LIBPAM - -/* Define to 1 if you have the `socket' library (-lsocket). */ -#undef HAVE_LIBSOCKET - -/* Define to 1 if you have the header file. */ -#undef HAVE_LIBUTIL_H - -/* Define to 1 if you have the `xnet' library (-lxnet). */ -#undef HAVE_LIBXNET - -/* Define to 1 if you have the `z' library (-lz). */ -#undef HAVE_LIBZ - -/* Define to 1 if you have the header file. */ -#undef HAVE_LIMITS_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_LINUX_AUDIT_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_LINUX_FILTER_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_LINUX_IF_TUN_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_LINUX_SECCOMP_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_LOCALE_H - -/* Define to 1 if you have the `login' function. */ -#undef HAVE_LOGIN - -/* Define to 1 if you have the header file. */ -#undef HAVE_LOGIN_CAP_H - -/* Define to 1 if you have the `login_getcapbool' function. */ -#undef HAVE_LOGIN_GETCAPBOOL - -/* Define to 1 if you have the header file. */ -#undef HAVE_LOGIN_H - -/* Define to 1 if you have the `logout' function. */ -#undef HAVE_LOGOUT - -/* Define to 1 if you have the `logwtmp' function. */ -#undef HAVE_LOGWTMP - -/* Define to 1 if the system has the type `long double'. */ -#undef HAVE_LONG_DOUBLE - -/* Define to 1 if the system has the type `long long'. */ -#undef HAVE_LONG_LONG - -/* Define to 1 if you have the header file. */ -#undef HAVE_MAILLOCK_H - -/* Define to 1 if you have the `mblen' function. */ -#undef HAVE_MBLEN - -/* Define to 1 if you have the `md5_crypt' function. */ -#undef HAVE_MD5_CRYPT - -/* Define if you want to allow MD5 passwords */ -#undef HAVE_MD5_PASSWORDS - -/* Define to 1 if you have the `memmove' function. */ -#undef HAVE_MEMMOVE - -/* Define to 1 if you have the header file. */ -#undef HAVE_MEMORY_H - -/* Define to 1 if you have the `memset_s' function. */ -#undef HAVE_MEMSET_S - -/* Define to 1 if you have the `mkdtemp' function. */ -#undef HAVE_MKDTEMP - -/* Define to 1 if you have the `mmap' function. */ -#undef HAVE_MMAP - -/* define if you have mode_t data type */ -#undef HAVE_MODE_T - -/* Some systems put nanosleep outside of libc */ -#undef HAVE_NANOSLEEP - -/* Define to 1 if you have the header file. */ -#undef HAVE_NDIR_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_NETDB_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_NETGROUP_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_NET_IF_TUN_H - -/* Define if you are on NeXT */ -#undef HAVE_NEXT - -/* Define to 1 if you have the `ngetaddrinfo' function. */ -#undef HAVE_NGETADDRINFO - -/* Define to 1 if you have the `nsleep' function. */ -#undef HAVE_NSLEEP - -/* Define to 1 if you have the `ogetaddrinfo' function. */ -#undef HAVE_OGETADDRINFO - -/* Define if you have an old version of PAM which takes only one argument to - pam_strerror */ -#undef HAVE_OLD_PAM - -/* Define to 1 if you have the `openlog_r' function. */ -#undef HAVE_OPENLOG_R - -/* Define to 1 if you have the `openpty' function. */ -#undef HAVE_OPENPTY - -/* Define if your ssl headers are included with #include */ -#undef HAVE_OPENSSL - -/* Define if you have Digital Unix Security Integration Architecture */ -#undef HAVE_OSF_SIA - -/* Define to 1 if you have the `pam_getenvlist' function. */ -#undef HAVE_PAM_GETENVLIST - -/* Define to 1 if you have the header file. */ -#undef HAVE_PAM_PAM_APPL_H - -/* Define to 1 if you have the `pam_putenv' function. */ -#undef HAVE_PAM_PUTENV - -/* Define to 1 if you have the header file. */ -#undef HAVE_PATHS_H - -/* Define if you have ut_pid in utmp.h */ -#undef HAVE_PID_IN_UTMP - -/* define if you have pid_t data type */ -#undef HAVE_PID_T - -/* Define to 1 if you have the `poll' function. */ -#undef HAVE_POLL - -/* Define to 1 if you have the header file. */ -#undef HAVE_POLL_H - -/* Define to 1 if you have the `prctl' function. */ -#undef HAVE_PRCTL - -/* Define if you have /proc/$pid/fd */ -#undef HAVE_PROC_PID - -/* Define to 1 if you have the `pstat' function. */ -#undef HAVE_PSTAT - -/* Define to 1 if you have the header file. */ -#undef HAVE_PTY_H - -/* Define to 1 if you have the `pututline' function. */ -#undef HAVE_PUTUTLINE - -/* Define to 1 if you have the `pututxline' function. */ -#undef HAVE_PUTUTXLINE - -/* Define to 1 if you have the `readpassphrase' function. */ -#undef HAVE_READPASSPHRASE - -/* Define to 1 if you have the header file. */ -#undef HAVE_READPASSPHRASE_H - -/* Define to 1 if you have the `reallocarray' function. */ -#undef HAVE_REALLOCARRAY - -/* Define to 1 if you have the `realpath' function. */ -#undef HAVE_REALPATH - -/* Define to 1 if you have the `recvmsg' function. */ -#undef HAVE_RECVMSG - -/* sys/resource.h has RLIMIT_NPROC */ -#undef HAVE_RLIMIT_NPROC - -/* Define to 1 if you have the header file. */ -#undef HAVE_RPC_TYPES_H - -/* Define to 1 if you have the `rresvport_af' function. */ -#undef HAVE_RRESVPORT_AF - -/* Define to 1 if you have the `RSA_generate_key_ex' function. */ -#undef HAVE_RSA_GENERATE_KEY_EX - -/* Define to 1 if you have the `RSA_get_default_method' function. */ -#undef HAVE_RSA_GET_DEFAULT_METHOD - -/* Define to 1 if you have the header file. */ -#undef HAVE_SANDBOX_H - -/* Define to 1 if you have the `sandbox_init' function. */ -#undef HAVE_SANDBOX_INIT - -/* define if you have sa_family_t data type */ -#undef HAVE_SA_FAMILY_T - -/* Define to 1 if you have the `scan_scaled' function. */ -#undef HAVE_SCAN_SCALED - -/* Define if you have SecureWare-based protected password database */ -#undef HAVE_SECUREWARE - -/* Define to 1 if you have the header file. */ -#undef HAVE_SECURITY_PAM_APPL_H - -/* Define to 1 if you have the `sendmsg' function. */ -#undef HAVE_SENDMSG - -/* Define to 1 if you have the `setauthdb' function. */ -#undef HAVE_SETAUTHDB - -/* Define to 1 if you have the `setdtablesize' function. */ -#undef HAVE_SETDTABLESIZE - -/* Define to 1 if you have the `setegid' function. */ -#undef HAVE_SETEGID - -/* Define to 1 if you have the `setenv' function. */ -#undef HAVE_SETENV - -/* Define to 1 if you have the `seteuid' function. */ -#undef HAVE_SETEUID - -/* Define to 1 if you have the `setgroupent' function. */ -#undef HAVE_SETGROUPENT - -/* Define to 1 if you have the `setgroups' function. */ -#undef HAVE_SETGROUPS - -/* Define to 1 if you have the `setlinebuf' function. */ -#undef HAVE_SETLINEBUF - -/* Define to 1 if you have the `setlogin' function. */ -#undef HAVE_SETLOGIN - -/* Define to 1 if you have the `setluid' function. */ -#undef HAVE_SETLUID - -/* Define to 1 if you have the `setpassent' function. */ -#undef HAVE_SETPASSENT - -/* Define to 1 if you have the `setpcred' function. */ -#undef HAVE_SETPCRED - -/* Define to 1 if you have the `setproctitle' function. */ -#undef HAVE_SETPROCTITLE - -/* Define to 1 if you have the `setregid' function. */ -#undef HAVE_SETREGID - -/* Define to 1 if you have the `setresgid' function. */ -#undef HAVE_SETRESGID - -/* Define to 1 if you have the `setresuid' function. */ -#undef HAVE_SETRESUID - -/* Define to 1 if you have the `setreuid' function. */ -#undef HAVE_SETREUID - -/* Define to 1 if you have the `setrlimit' function. */ -#undef HAVE_SETRLIMIT - -/* Define to 1 if you have the `setsid' function. */ -#undef HAVE_SETSID - -/* Define to 1 if you have the `setutent' function. */ -#undef HAVE_SETUTENT - -/* Define to 1 if you have the `setutxdb' function. */ -#undef HAVE_SETUTXDB - -/* Define to 1 if you have the `setutxent' function. */ -#undef HAVE_SETUTXENT - -/* Define to 1 if you have the `setvbuf' function. */ -#undef HAVE_SETVBUF - -/* Define to 1 if you have the `set_id' function. */ -#undef HAVE_SET_ID - -/* Define to 1 if you have the `SHA256_Update' function. */ -#undef HAVE_SHA256_UPDATE - -/* Define to 1 if you have the header file. */ -#undef HAVE_SHA2_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_SHADOW_H - -/* Define to 1 if you have the `sigaction' function. */ -#undef HAVE_SIGACTION - -/* Define to 1 if you have the `sigvec' function. */ -#undef HAVE_SIGVEC - -/* Define to 1 if the system has the type `sig_atomic_t'. */ -#undef HAVE_SIG_ATOMIC_T - -/* define if you have size_t data type */ -#undef HAVE_SIZE_T - -/* Define to 1 if you have the `snprintf' function. */ -#undef HAVE_SNPRINTF - -/* Define to 1 if you have the `socketpair' function. */ -#undef HAVE_SOCKETPAIR - -/* Have PEERCRED socket option */ -#undef HAVE_SO_PEERCRED - -/* define if you have ssize_t data type */ -#undef HAVE_SSIZE_T - -/* Fields in struct sockaddr_storage */ -#undef HAVE_SS_FAMILY_IN_SS - -/* Define to 1 if you have the `statfs' function. */ -#undef HAVE_STATFS - -/* Define to 1 if you have the `statvfs' function. */ -#undef HAVE_STATVFS - -/* Define to 1 if you have the header file. */ -#undef HAVE_STDDEF_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_STDINT_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_STDLIB_H - -/* Define to 1 if you have the `strdup' function. */ -#undef HAVE_STRDUP - -/* Define to 1 if you have the `strerror' function. */ -#undef HAVE_STRERROR - -/* Define to 1 if you have the `strftime' function. */ -#undef HAVE_STRFTIME - -/* Silly mkstemp() */ -#undef HAVE_STRICT_MKSTEMP - -/* Define to 1 if you have the header file. */ -#undef HAVE_STRINGS_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_STRING_H - -/* Define to 1 if you have the `strlcat' function. */ -#undef HAVE_STRLCAT - -/* Define to 1 if you have the `strlcpy' function. */ -#undef HAVE_STRLCPY - -/* Define to 1 if you have the `strmode' function. */ -#undef HAVE_STRMODE - -/* Define to 1 if you have the `strnlen' function. */ -#undef HAVE_STRNLEN - -/* Define to 1 if you have the `strnvis' function. */ -#undef HAVE_STRNVIS - -/* Define to 1 if you have the `strptime' function. */ -#undef HAVE_STRPTIME - -/* Define to 1 if you have the `strsep' function. */ -#undef HAVE_STRSEP - -/* Define to 1 if you have the `strtoll' function. */ -#undef HAVE_STRTOLL - -/* Define to 1 if you have the `strtonum' function. */ -#undef HAVE_STRTONUM - -/* Define to 1 if you have the `strtoul' function. */ -#undef HAVE_STRTOUL - -/* Define to 1 if you have the `strtoull' function. */ -#undef HAVE_STRTOULL - -/* define if you have struct addrinfo data type */ -#undef HAVE_STRUCT_ADDRINFO - -/* define if you have struct in6_addr data type */ -#undef HAVE_STRUCT_IN6_ADDR - -/* Define to 1 if `pw_change' is a member of `struct passwd'. */ -#undef HAVE_STRUCT_PASSWD_PW_CHANGE - -/* Define to 1 if `pw_class' is a member of `struct passwd'. */ -#undef HAVE_STRUCT_PASSWD_PW_CLASS - -/* Define to 1 if `pw_expire' is a member of `struct passwd'. */ -#undef HAVE_STRUCT_PASSWD_PW_EXPIRE - -/* Define to 1 if `pw_gecos' is a member of `struct passwd'. */ -#undef HAVE_STRUCT_PASSWD_PW_GECOS - -/* define if you have struct sockaddr_in6 data type */ -#undef HAVE_STRUCT_SOCKADDR_IN6 - -/* Define to 1 if `sin6_scope_id' is a member of `struct sockaddr_in6'. */ -#undef HAVE_STRUCT_SOCKADDR_IN6_SIN6_SCOPE_ID - -/* define if you have struct sockaddr_storage data type */ -#undef HAVE_STRUCT_SOCKADDR_STORAGE - -/* Define to 1 if `st_blksize' is a member of `struct stat'. */ -#undef HAVE_STRUCT_STAT_ST_BLKSIZE - -/* Define to 1 if the system has the type `struct timespec'. */ -#undef HAVE_STRUCT_TIMESPEC - -/* define if you have struct timeval */ -#undef HAVE_STRUCT_TIMEVAL - -/* Define to 1 if you have the `swap32' function. */ -#undef HAVE_SWAP32 - -/* Define to 1 if you have the `sysconf' function. */ -#undef HAVE_SYSCONF - -/* Define if you have syslen in utmpx.h */ -#undef HAVE_SYSLEN_IN_UTMPX - -/* Define to 1 if you have the header file. */ -#undef HAVE_SYS_AUDIT_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_SYS_BITYPES_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_SYS_BSDTTY_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_SYS_CAPSICUM_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_SYS_CDEFS_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_SYS_DIR_H - -/* Define if your system defines sys_errlist[] */ -#undef HAVE_SYS_ERRLIST - -/* Define to 1 if you have the header file. */ -#undef HAVE_SYS_MMAN_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_SYS_MOUNT_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_SYS_NDIR_H - -/* Define if your system defines sys_nerr */ -#undef HAVE_SYS_NERR - -/* Define to 1 if you have the header file. */ -#undef HAVE_SYS_POLL_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_SYS_PRCTL_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_SYS_PSTAT_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_SYS_PTMS_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_SYS_SELECT_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_SYS_STATVFS_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_SYS_STAT_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_SYS_STREAM_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_SYS_STROPTS_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_SYS_STRTIO_H - -/* Force use of sys/syslog.h on Ultrix */ -#undef HAVE_SYS_SYSLOG_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_SYS_SYSMACROS_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_SYS_TIMERS_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_SYS_TIME_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_SYS_TYPES_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_SYS_UN_H - -/* Define to 1 if you have the `tcgetpgrp' function. */ -#undef HAVE_TCGETPGRP - -/* Define to 1 if you have the `tcsendbreak' function. */ -#undef HAVE_TCSENDBREAK - -/* Define to 1 if you have the `time' function. */ -#undef HAVE_TIME - -/* Define to 1 if you have the header file. */ -#undef HAVE_TIME_H - -/* Define if you have ut_time in utmp.h */ -#undef HAVE_TIME_IN_UTMP - -/* Define if you have ut_time in utmpx.h */ -#undef HAVE_TIME_IN_UTMPX - -/* Define to 1 if you have the `timingsafe_bcmp' function. */ -#undef HAVE_TIMINGSAFE_BCMP - -/* Define to 1 if you have the header file. */ -#undef HAVE_TMPDIR_H - -/* Define to 1 if you have the `truncate' function. */ -#undef HAVE_TRUNCATE - -/* Define to 1 if you have the header file. */ -#undef HAVE_TTYENT_H - -/* Define if you have ut_tv in utmp.h */ -#undef HAVE_TV_IN_UTMP - -/* Define if you have ut_tv in utmpx.h */ -#undef HAVE_TV_IN_UTMPX - -/* Define if you have ut_type in utmp.h */ -#undef HAVE_TYPE_IN_UTMP - -/* Define if you have ut_type in utmpx.h */ -#undef HAVE_TYPE_IN_UTMPX - -/* Define to 1 if you have the header file. */ -#undef HAVE_UCRED_H - -/* Define to 1 if the system has the type `uintmax_t'. */ -#undef HAVE_UINTMAX_T - -/* define if you have uintxx_t data type */ -#undef HAVE_UINTXX_T - -/* Define to 1 if you have the header file. */ -#undef HAVE_UNISTD_H - -/* Define to 1 if you have the `unsetenv' function. */ -#undef HAVE_UNSETENV - -/* Define to 1 if the system has the type `unsigned long long'. */ -#undef HAVE_UNSIGNED_LONG_LONG - -/* Define to 1 if you have the `updwtmp' function. */ -#undef HAVE_UPDWTMP - -/* Define to 1 if you have the `updwtmpx' function. */ -#undef HAVE_UPDWTMPX - -/* Define to 1 if you have the header file. */ -#undef HAVE_USERSEC_H - -/* Define to 1 if you have the `user_from_uid' function. */ -#undef HAVE_USER_FROM_UID - -/* Define to 1 if you have the `usleep' function. */ -#undef HAVE_USLEEP - -/* Define to 1 if you have the header file. */ -#undef HAVE_UTIL_H - -/* Define to 1 if you have the `utimes' function. */ -#undef HAVE_UTIMES - -/* Define to 1 if you have the header file. */ -#undef HAVE_UTIME_H - -/* Define to 1 if you have the `utmpname' function. */ -#undef HAVE_UTMPNAME - -/* Define to 1 if you have the `utmpxname' function. */ -#undef HAVE_UTMPXNAME - -/* Define to 1 if you have the header file. */ -#undef HAVE_UTMPX_H - -/* Define to 1 if you have the header file. */ -#undef HAVE_UTMP_H - -/* define if you have u_char data type */ -#undef HAVE_U_CHAR - -/* define if you have u_int data type */ -#undef HAVE_U_INT - -/* define if you have u_int64_t data type */ -#undef HAVE_U_INT64_T - -/* define if you have u_intxx_t data type */ -#undef HAVE_U_INTXX_T - -/* Define to 1 if you have the `vasprintf' function. */ -#undef HAVE_VASPRINTF - -/* Define if va_copy exists */ -#undef HAVE_VA_COPY - -/* Define to 1 if you have the header file. */ -#undef HAVE_VIS_H - -/* Define to 1 if you have the `vsnprintf' function. */ -#undef HAVE_VSNPRINTF - -/* Define to 1 if you have the `waitpid' function. */ -#undef HAVE_WAITPID - -/* Define to 1 if you have the `_getlong' function. */ -#undef HAVE__GETLONG - -/* Define to 1 if you have the `_getpty' function. */ -#undef HAVE__GETPTY - -/* Define to 1 if you have the `_getshort' function. */ -#undef HAVE__GETSHORT - -/* Define if you have struct __res_state _res as an extern */ -#undef HAVE__RES_EXTERN - -/* Define to 1 if you have the `__b64_ntop' function. */ -#undef HAVE___B64_NTOP - -/* Define to 1 if you have the `__b64_pton' function. */ -#undef HAVE___B64_PTON - -/* Define if compiler implements __FUNCTION__ */ -#undef HAVE___FUNCTION__ - -/* Define if libc defines __progname */ -#undef HAVE___PROGNAME - -/* Fields in struct sockaddr_storage */ -#undef HAVE___SS_FAMILY_IN_SS - -/* Define if __va_copy exists */ -#undef HAVE___VA_COPY - -/* Define if compiler implements __func__ */ -#undef HAVE___func__ - -/* Define this if you are using the Heimdal version of Kerberos V5 */ -#undef HEIMDAL - -/* Define if you need to use IP address instead of hostname in $DISPLAY */ -#undef IPADDR_IN_DISPLAY - -/* Detect IPv4 in IPv6 mapped addresses and treat as IPv4 */ -#undef IPV4_IN_IPV6 - -/* Define if your system choked on IP TOS setting */ -#undef IP_TOS_IS_BROKEN - -/* Define if you want Kerberos 5 support */ -#undef KRB5 - -/* Define if pututxline updates lastlog too */ -#undef LASTLOG_WRITE_PUTUTXLINE - -/* Define if you want TCP Wrappers support */ -#undef LIBWRAP - -/* Define to whatever link() returns for "not supported" if it doesn't return - EOPNOTSUPP. */ -#undef LINK_OPNOTSUPP_ERRNO - -/* Adjust Linux out-of-memory killer */ -#undef LINUX_OOM_ADJUST - -/* max value of long long calculated by configure */ -#undef LLONG_MAX - -/* min value of long long calculated by configure */ -#undef LLONG_MIN - -/* Account locked with pw(1) */ -#undef LOCKED_PASSWD_PREFIX - -/* String used in /etc/passwd to denote locked account */ -#undef LOCKED_PASSWD_STRING - -/* String used in /etc/passwd to denote locked account */ -#undef LOCKED_PASSWD_SUBSTR - -/* Some versions of /bin/login need the TERM supplied on the commandline */ -#undef LOGIN_NEEDS_TERM - -/* Some systems need a utmpx entry for /bin/login to work */ -#undef LOGIN_NEEDS_UTMPX - -/* Define if your login program cannot handle end of options ("--") */ -#undef LOGIN_NO_ENDOPT - -/* If your header files don't define LOGIN_PROGRAM, then use this (detected) - from environment and PATH */ -#undef LOGIN_PROGRAM_FALLBACK - -/* Set this to your mail directory if you do not have _PATH_MAILDIR */ -#undef MAIL_DIRECTORY - -/* Need setpgrp to acquire controlling tty */ -#undef NEED_SETPGRP - -/* compiler does not accept __attribute__ on return types */ -#undef NO_ATTRIBUTE_ON_RETURN_TYPE - -/* Define if the concept of ports only accessible to superusers isn't known */ -#undef NO_IPPORT_RESERVED_CONCEPT - -/* Define if you don't want to use lastlog in session.c */ -#undef NO_SSH_LASTLOG - -/* Define if X11 doesn't support AF_UNIX sockets on that system */ -#undef NO_X11_UNIX_SOCKETS - -/* Define if EVP_DigestUpdate returns void */ -#undef OPENSSL_EVP_DIGESTUPDATE_VOID - -/* OpenSSL has ECC */ -#undef OPENSSL_HAS_ECC - -/* libcrypto has NID_X9_62_prime256v1 */ -#undef OPENSSL_HAS_NISTP256 - -/* libcrypto has NID_secp384r1 */ -#undef OPENSSL_HAS_NISTP384 - -/* libcrypto has NID_secp521r1 */ -#undef OPENSSL_HAS_NISTP521 - -/* libcrypto has EVP AES CTR */ -#undef OPENSSL_HAVE_EVPCTR - -/* libcrypto has EVP AES GCM */ -#undef OPENSSL_HAVE_EVPGCM - -/* libcrypto is missing AES 192 and 256 bit functions */ -#undef OPENSSL_LOBOTOMISED_AES - -/* Define if you want the OpenSSL internally seeded PRNG only */ -#undef OPENSSL_PRNG_ONLY - -/* Define to the address where bug reports for this package should be sent. */ -#undef PACKAGE_BUGREPORT - -/* Define to the full name of this package. */ -#undef PACKAGE_NAME - -/* Define to the full name and version of this package. */ -#undef PACKAGE_STRING - -/* Define to the one symbol short name of this package. */ -#undef PACKAGE_TARNAME - -/* Define to the home page for this package. */ -#undef PACKAGE_URL - -/* Define to the version of this package. */ -#undef PACKAGE_VERSION - -/* Define if you are using Solaris-derived PAM which passes pam_messages to - the conversation function with an extra level of indirection */ -#undef PAM_SUN_CODEBASE - -/* Work around problematic Linux PAM modules handling of PAM_TTY */ -#undef PAM_TTY_KLUDGE - -/* must supply username to passwd */ -#undef PASSWD_NEEDS_USERNAME - -/* System dirs owned by bin (uid 2) */ -#undef PLATFORM_SYS_DIR_UID - -/* Port number of PRNGD/EGD random number socket */ -#undef PRNGD_PORT - -/* Location of PRNGD/EGD random number socket */ -#undef PRNGD_SOCKET - -/* read(1) can return 0 for a non-closed fd */ -#undef PTY_ZEROREAD - -/* Sandbox using capsicum */ -#undef SANDBOX_CAPSICUM - -/* Sandbox using Darwin sandbox_init(3) */ -#undef SANDBOX_DARWIN - -/* no privsep sandboxing */ -#undef SANDBOX_NULL - -/* Sandbox using setrlimit(2) */ -#undef SANDBOX_RLIMIT - -/* Sandbox using seccomp filter */ -#undef SANDBOX_SECCOMP_FILTER - -/* setrlimit RLIMIT_FSIZE works */ -#undef SANDBOX_SKIP_RLIMIT_FSIZE - -/* define if setrlimit RLIMIT_NOFILE breaks things */ -#undef SANDBOX_SKIP_RLIMIT_NOFILE - -/* Sandbox using systrace(4) */ -#undef SANDBOX_SYSTRACE - -/* Specify the system call convention in use */ -#undef SECCOMP_AUDIT_ARCH - -/* Define if your platform breaks doing a seteuid before a setuid */ -#undef SETEUID_BREAKS_SETUID - -/* The size of `int', as computed by sizeof. */ -#undef SIZEOF_INT - -/* The size of `long int', as computed by sizeof. */ -#undef SIZEOF_LONG_INT - -/* The size of `long long int', as computed by sizeof. */ -#undef SIZEOF_LONG_LONG_INT - -/* The size of `short int', as computed by sizeof. */ -#undef SIZEOF_SHORT_INT - -/* Define if you want S/Key support */ -#undef SKEY - -/* Define if your skeychallenge() function takes 4 arguments (NetBSD) */ -#undef SKEYCHALLENGE_4ARG - -/* Define as const if snprintf() can declare const char *fmt */ -#undef SNPRINTF_CONST - -/* Define to a Set Process Title type if your system is supported by - bsd-setproctitle.c */ -#undef SPT_TYPE - -/* Define if sshd somehow reacquires a controlling TTY after setsid() */ -#undef SSHD_ACQUIRES_CTTY - -/* Define if pam_chauthtok wants real uid set to the unpriv'ed user */ -#undef SSHPAM_CHAUTHTOK_NEEDS_RUID - -/* Use audit debugging module */ -#undef SSH_AUDIT_EVENTS - -/* Windows is sensitive to read buffer size */ -#undef SSH_IOBUFSZ - -/* non-privileged user for privilege separation */ -#undef SSH_PRIVSEP_USER - -/* Use tunnel device compatibility to OpenBSD */ -#undef SSH_TUN_COMPAT_AF - -/* Open tunnel devices the FreeBSD way */ -#undef SSH_TUN_FREEBSD - -/* Open tunnel devices the Linux tun/tap way */ -#undef SSH_TUN_LINUX - -/* No layer 2 tunnel support */ -#undef SSH_TUN_NO_L2 - -/* Open tunnel devices the OpenBSD way */ -#undef SSH_TUN_OPENBSD - -/* Prepend the address family to IP tunnel traffic */ -#undef SSH_TUN_PREPEND_AF - -/* Define to 1 if you have the ANSI C header files. */ -#undef STDC_HEADERS - -/* Define if you want a different $PATH for the superuser */ -#undef SUPERUSER_PATH - -/* syslog_r function is safe to use in in a signal handler */ -#undef SYSLOG_R_SAFE_IN_SIGHAND - -/* Support passwords > 8 chars */ -#undef UNIXWARE_LONG_PASSWORDS - -/* Specify default $PATH */ -#undef USER_PATH - -/* Define this if you want to use libkafs' AFS support */ -#undef USE_AFS - -/* Use BSM audit module */ -#undef USE_BSM_AUDIT - -/* Use btmp to log bad logins */ -#undef USE_BTMP - -/* Use libedit for sftp */ -#undef USE_LIBEDIT - -/* Use Linux audit module */ -#undef USE_LINUX_AUDIT - -/* Enable OpenSSL engine support */ -#undef USE_OPENSSL_ENGINE - -/* Define if you want to enable PAM support */ -#undef USE_PAM - -/* Use PIPES instead of a socketpair() */ -#undef USE_PIPES - -/* Define if you have Solaris process contracts */ -#undef USE_SOLARIS_PROCESS_CONTRACTS - -/* Define if you have Solaris projects */ -#undef USE_SOLARIS_PROJECTS - -/* Define if you shouldn't strip 'tty' from your ttyname in [uw]tmp */ -#undef WITH_ABBREV_NO_TTY - -/* Define if you want to enable AIX4's authenticate function */ -#undef WITH_AIXAUTHENTICATE - -/* Define if you have/want arrays (cluster-wide session managment, not C - arrays) */ -#undef WITH_IRIX_ARRAY - -/* Define if you want IRIX audit trails */ -#undef WITH_IRIX_AUDIT - -/* Define if you want IRIX kernel jobs */ -#undef WITH_IRIX_JOBS - -/* Define if you want IRIX project management */ -#undef WITH_IRIX_PROJECT - 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If" -echo " used, ensure the path to scp is present, otherwise scp will not work.)" - fi -fi -if test ! -z "$superuser_path" ; then -echo " sshd superuser user PATH: $J" -fi -echo " Manpage format: $MANTYPE" -echo " PAM support: $PAM_MSG" -echo " OSF SIA support: $SIA_MSG" -echo " KerberosV support: $KRB5_MSG" -echo " SELinux support: $SELINUX_MSG" -echo " Smartcard support: $SCARD_MSG" -echo " S/KEY support: $SKEY_MSG" -echo " TCP Wrappers support: $TCPW_MSG" -echo " MD5 password support: $MD5_MSG" -echo " libedit support: $LIBEDIT_MSG" -echo " Solaris process contract support: $SPC_MSG" -echo " Solaris project support: $SP_MSG" -echo " IP address in \$DISPLAY hack: $DISPLAY_HACK_MSG" -echo " Translate v4 in v6 hack: $IPV4_IN6_HACK_MSG" -echo " BSD Auth support: $BSD_AUTH_MSG" -echo " Random number source: $RAND_MSG" -echo " Privsep sandbox style: $SANDBOX_STYLE" - -echo "" - -echo " Host: ${host}" -echo " Compiler: ${CC}" -echo " Compiler flags: ${CFLAGS}" -echo "Preprocessor flags: ${CPPFLAGS}" -echo " Linker flags: ${LDFLAGS}" -echo " Libraries: ${LIBS}" -if test ! -z "${SSHDLIBS}"; then -echo " +for sshd: ${SSHDLIBS}" -fi -if test ! -z "${SSHLIBS}"; then -echo " +for ssh: ${SSHLIBS}" -fi - -echo "" - -if test "x$MAKE_PACKAGE_SUPPORTED" = "xyes" ; then - echo "SVR4 style packages are supported with \"make package\"" - echo "" -fi - -if test "x$PAM_MSG" = "xyes" ; then - echo "PAM is enabled. You may need to install a PAM control file " - echo "for sshd, otherwise password authentication may fail. " - echo "Example PAM control files can be found in the contrib/ " - echo "subdirectory" - echo "" -fi - -if test ! -z "$NO_PEERCHECK" ; then - echo "WARNING: the operating system that you are using does not" - echo "appear to support getpeereid(), getpeerucred() or the" - echo "SO_PEERCRED getsockopt() option. These facilities are used to" - echo "enforce security checks to prevent unauthorised connections to" - echo "ssh-agent. Their absence increases the risk that a malicious" - echo "user can connect to your agent." - echo "" -fi - -if test "$AUDIT_MODULE" = "bsm" ; then - echo "WARNING: BSM audit support is currently considered EXPERIMENTAL." - echo "See the Solaris section in README.platform for details." -fi diff --git a/crypto/openssh/moduli.0 b/crypto/openssh/moduli.0 deleted file mode 100644 index 087e596..0000000 --- a/crypto/openssh/moduli.0 +++ /dev/null @@ -1,74 +0,0 @@ -MODULI(5) File Formats Manual MODULI(5) - -NAME - moduli M-bM-^@M-^S Diffie-Hellman moduli - -DESCRIPTION - The /etc/moduli file contains prime numbers and generators for use by - sshd(8) in the Diffie-Hellman Group Exchange key exchange method. - - New moduli may be generated with ssh-keygen(1) using a two-step process. - An initial candidate generation pass, using ssh-keygen -G, calculates - numbers that are likely to be useful. A second primality testing pass, - using ssh-keygen -T, provides a high degree of assurance that the numbers - are prime and are safe for use in Diffie-Hellman operations by sshd(8). - This moduli format is used as the output from each pass. - - The file consists of newline-separated records, one per modulus, - containing seven space-separated fields. These fields are as follows: - - timestamp The time that the modulus was last processed as - YYYYMMDDHHMMSS. - - type Decimal number specifying the internal structure of - the prime modulus. Supported types are: - - 0 Unknown, not tested. - 2 "Safe" prime; (p-1)/2 is also prime. - 4 Sophie Germain; 2p+1 is also prime. - - Moduli candidates initially produced by ssh-keygen(1) - are Sophie Germain primes (type 4). Further primality - testing with ssh-keygen(1) produces safe prime moduli - (type 2) that are ready for use in sshd(8). Other - types are not used by OpenSSH. - - tests Decimal number indicating the type of primality tests - that the number has been subjected to represented as a - bitmask of the following values: - - 0x00 Not tested. - 0x01 Composite number M-bM-^@M-^S not prime. - 0x02 Sieve of Eratosthenes. - 0x04 Probabilistic Miller-Rabin primality tests. - - The ssh-keygen(1) moduli candidate generation uses the - Sieve of Eratosthenes (flag 0x02). Subsequent - ssh-keygen(1) primality tests are Miller-Rabin tests - (flag 0x04). - - trials Decimal number indicating the number of primality - trials that have been performed on the modulus. - - size Decimal number indicating the size of the prime in - bits. - - generator The recommended generator for use with this modulus - (hexadecimal). - - modulus The modulus itself in hexadecimal. - - When performing Diffie-Hellman Group Exchange, sshd(8) first estimates - the size of the modulus required to produce enough Diffie-Hellman output - to sufficiently key the selected symmetric cipher. sshd(8) then randomly - selects a modulus from /etc/moduli that best meets the size requirement. - -SEE ALSO - ssh-keygen(1), sshd(8) - -STANDARDS - M. Friedl, N. Provos, and W. Simpson, Diffie-Hellman Group Exchange for - the Secure Shell (SSH) Transport Layer Protocol, RFC 4419, March 2006, - 2006. - -OpenBSD 5.8 September 26, 2012 OpenBSD 5.8 diff --git a/crypto/openssh/scp.0 b/crypto/openssh/scp.0 deleted file mode 100644 index 8f41f61..0000000 --- a/crypto/openssh/scp.0 +++ /dev/null @@ -1,165 +0,0 @@ -SCP(1) General Commands Manual SCP(1) - -NAME - scp M-bM-^@M-^S secure copy (remote file copy program) - -SYNOPSIS - scp [-12346BCpqrv] [-c cipher] [-F ssh_config] [-i identity_file] - [-l limit] [-o ssh_option] [-P port] [-S program] - [[user@]host1:]file1 ... [[user@]host2:]file2 - -DESCRIPTION - scp copies files between hosts on a network. It uses ssh(1) for data - transfer, and uses the same authentication and provides the same security - as ssh(1). scp will ask for passwords or passphrases if they are needed - for authentication. - - File names may contain a user and host specification to indicate that the - file is to be copied to/from that host. Local file names can be made - explicit using absolute or relative pathnames to avoid scp treating file - names containing M-bM-^@M-^X:M-bM-^@M-^Y as host specifiers. Copies between two remote hosts - are also permitted. - - The options are as follows: - - -1 Forces scp to use protocol 1. - - -2 Forces scp to use protocol 2. - - -3 Copies between two remote hosts are transferred through the local - host. Without this option the data is copied directly between - the two remote hosts. Note that this option disables the - progress meter. - - -4 Forces scp to use IPv4 addresses only. - - -6 Forces scp to use IPv6 addresses only. - - -B Selects batch mode (prevents asking for passwords or - passphrases). - - -C Compression enable. Passes the -C flag to ssh(1) to enable - compression. - - -c cipher - Selects the cipher to use for encrypting the data transfer. This - option is directly passed to ssh(1). - - -F ssh_config - Specifies an alternative per-user configuration file for ssh. - This option is directly passed to ssh(1). - - -i identity_file - Selects the file from which the identity (private key) for public - key authentication is read. This option is directly passed to - ssh(1). - - -l limit - Limits the used bandwidth, specified in Kbit/s. - - -o ssh_option - Can be used to pass options to ssh in the format used in - ssh_config(5). This is useful for specifying options for which - there is no separate scp command-line flag. For full details of - the options listed below, and their possible values, see - ssh_config(5). - - AddressFamily - BatchMode - BindAddress - CanonicalDomains - CanonicalizeFallbackLocal - CanonicalizeHostname - CanonicalizeMaxDots - CanonicalizePermittedCNAMEs - ChallengeResponseAuthentication - CheckHostIP - Cipher - Ciphers - Compression - CompressionLevel - ConnectionAttempts - ConnectTimeout - ControlMaster - ControlPath - ControlPersist - GlobalKnownHostsFile - GSSAPIAuthentication - GSSAPIDelegateCredentials - HashKnownHosts - Host - HostbasedAuthentication - HostbasedKeyTypes - HostKeyAlgorithms - HostKeyAlias - HostName - IdentityFile - IdentitiesOnly - IPQoS - KbdInteractiveAuthentication - KbdInteractiveDevices - KexAlgorithms - LogLevel - MACs - NoHostAuthenticationForLocalhost - NumberOfPasswordPrompts - PasswordAuthentication - PKCS11Provider - Port - PreferredAuthentications - Protocol - ProxyCommand - PubkeyAcceptedKeyTypes - PubkeyAuthentication - RekeyLimit - RhostsRSAAuthentication - RSAAuthentication - SendEnv - ServerAliveInterval - ServerAliveCountMax - StrictHostKeyChecking - TCPKeepAlive - UpdateHostKeys - UsePrivilegedPort - User - UserKnownHostsFile - VerifyHostKeyDNS - - -P port - Specifies the port to connect to on the remote host. Note that - this option is written with a capital M-bM-^@M-^XPM-bM-^@M-^Y, because -p is already - reserved for preserving the times and modes of the file. - - -p Preserves modification times, access times, and modes from the - original file. - - -q Quiet mode: disables the progress meter as well as warning and - diagnostic messages from ssh(1). - - -r Recursively copy entire directories. Note that scp follows - symbolic links encountered in the tree traversal. - - -S program - Name of program to use for the encrypted connection. The program - must understand ssh(1) options. - - -v Verbose mode. Causes scp and ssh(1) to print debugging messages - about their progress. This is helpful in debugging connection, - authentication, and configuration problems. - -EXIT STATUS - The scp utility exitsM-BM- 0 on success, andM-BM- >0 if an error occurs. - -SEE ALSO - sftp(1), ssh(1), ssh-add(1), ssh-agent(1), ssh-keygen(1), ssh_config(5), - sshd(8) - -HISTORY - scp is based on the rcp program in BSD source code from the Regents of - the University of California. - -AUTHORS - Timo Rinne - Tatu Ylonen - -OpenBSD 5.8 July 10, 2015 OpenBSD 5.8 diff --git a/crypto/openssh/sftp-server.0 b/crypto/openssh/sftp-server.0 deleted file mode 100644 index b971cef..0000000 --- a/crypto/openssh/sftp-server.0 +++ /dev/null @@ -1,96 +0,0 @@ -SFTP-SERVER(8) System Manager's Manual SFTP-SERVER(8) - -NAME - sftp-server M-bM-^@M-^S SFTP server subsystem - -SYNOPSIS - sftp-server [-ehR] [-d start_directory] [-f log_facility] [-l log_level] - [-P blacklisted_requests] [-p whitelisted_requests] - [-u umask] - sftp-server -Q protocol_feature - -DESCRIPTION - sftp-server is a program that speaks the server side of SFTP protocol to - stdout and expects client requests from stdin. sftp-server is not - intended to be called directly, but from sshd(8) using the Subsystem - option. - - Command-line flags to sftp-server should be specified in the Subsystem - declaration. See sshd_config(5) for more information. - - Valid options are: - - -d start_directory - specifies an alternate starting directory for users. The - pathname may contain the following tokens that are expanded at - runtime: %% is replaced by a literal '%', %d is replaced by the - home directory of the user being authenticated, and %u is - replaced by the username of that user. The default is to use the - user's home directory. This option is useful in conjunction with - the sshd_config(5) ChrootDirectory option. - - -e Causes sftp-server to print logging information to stderr instead - of syslog for debugging. - - -f log_facility - Specifies the facility code that is used when logging messages - from sftp-server. The possible values are: DAEMON, USER, AUTH, - LOCAL0, LOCAL1, LOCAL2, LOCAL3, LOCAL4, LOCAL5, LOCAL6, LOCAL7. - The default is AUTH. - - -h Displays sftp-server usage information. - - -l log_level - Specifies which messages will be logged by sftp-server. The - possible values are: QUIET, FATAL, ERROR, INFO, VERBOSE, DEBUG, - DEBUG1, DEBUG2, and DEBUG3. INFO and VERBOSE log transactions - that sftp-server performs on behalf of the client. DEBUG and - DEBUG1 are equivalent. DEBUG2 and DEBUG3 each specify higher - levels of debugging output. The default is ERROR. - - -P blacklisted_requests - Specify a comma-separated list of SFTP protocol requests that are - banned by the server. sftp-server will reply to any blacklisted - request with a failure. The -Q flag can be used to determine the - supported request types. If both a blacklist and a whitelist are - specified, then the blacklist is applied before the whitelist. - - -p whitelisted_requests - Specify a comma-separated list of SFTP protocol requests that are - permitted by the server. All request types that are not on the - whitelist will be logged and replied to with a failure message. - - Care must be taken when using this feature to ensure that - requests made implicitly by SFTP clients are permitted. - - -Q protocol_feature - Query protocol features supported by sftp-server. At present the - only feature that may be queried is M-bM-^@M-^\requestsM-bM-^@M-^], which may be used - for black or whitelisting (flags -P and -p respectively). - - -R Places this instance of sftp-server into a read-only mode. - Attempts to open files for writing, as well as other operations - that change the state of the filesystem, will be denied. - - -u umask - Sets an explicit umask(2) to be applied to newly-created files - and directories, instead of the user's default mask. - - On some systems, sftp-server must be able to access /dev/log for logging - to work, and use of sftp-server in a chroot configuration therefore - requires that syslogd(8) establish a logging socket inside the chroot - directory. - -SEE ALSO - sftp(1), ssh(1), sshd_config(5), sshd(8) - - T. Ylonen and S. Lehtinen, SSH File Transfer Protocol, draft-ietf-secsh- - filexfer-02.txt, October 2001, work in progress material. - -HISTORY - sftp-server first appeared in OpenBSD 2.8. - -AUTHORS - Markus Friedl - -OpenBSD 5.8 December 11, 2014 OpenBSD 5.8 diff --git a/crypto/openssh/sftp.0 b/crypto/openssh/sftp.0 deleted file mode 100644 index 550f276..0000000 --- a/crypto/openssh/sftp.0 +++ /dev/null @@ -1,383 +0,0 @@ -SFTP(1) General Commands Manual SFTP(1) - -NAME - sftp M-bM-^@M-^S secure file transfer program - -SYNOPSIS - sftp [-1246aCfpqrv] [-B buffer_size] [-b batchfile] [-c cipher] - [-D sftp_server_path] [-F ssh_config] [-i identity_file] [-l limit] - [-o ssh_option] [-P port] [-R num_requests] [-S program] - [-s subsystem | sftp_server] host - sftp [user@]host[:file ...] - sftp [user@]host[:dir[/]] - sftp -b batchfile [user@]host - -DESCRIPTION - sftp is an interactive file transfer program, similar to ftp(1), which - performs all operations over an encrypted ssh(1) transport. It may also - use many features of ssh, such as public key authentication and - compression. sftp connects and logs into the specified host, then enters - an interactive command mode. - - The second usage format will retrieve files automatically if a non- - interactive authentication method is used; otherwise it will do so after - successful interactive authentication. - - The third usage format allows sftp to start in a remote directory. - - The final usage format allows for automated sessions using the -b option. - In such cases, it is necessary to configure non-interactive - authentication to obviate the need to enter a password at connection time - (see sshd(8) and ssh-keygen(1) for details). - - Since some usage formats use colon characters to delimit host names from - path names, IPv6 addresses must be enclosed in square brackets to avoid - ambiguity. - - The options are as follows: - - -1 Specify the use of protocol version 1. - - -2 Specify the use of protocol version 2. - - -4 Forces sftp to use IPv4 addresses only. - - -6 Forces sftp to use IPv6 addresses only. - - -a Attempt to continue interrupted transfers rather than overwriting - existing partial or complete copies of files. If the partial - contents differ from those being transferred, then the resultant - file is likely to be corrupt. - - -B buffer_size - Specify the size of the buffer that sftp uses when transferring - files. Larger buffers require fewer round trips at the cost of - higher memory consumption. The default is 32768 bytes. - - -b batchfile - Batch mode reads a series of commands from an input batchfile - instead of stdin. Since it lacks user interaction it should be - used in conjunction with non-interactive authentication. A - batchfile of M-bM-^@M-^X-M-bM-^@M-^Y may be used to indicate standard input. sftp - will abort if any of the following commands fail: get, put, - reget, reput, rename, ln, rm, mkdir, chdir, ls, lchdir, chmod, - chown, chgrp, lpwd, df, symlink, and lmkdir. Termination on - error can be suppressed on a command by command basis by - prefixing the command with a M-bM-^@M-^X-M-bM-^@M-^Y character (for example, -rm - /tmp/blah*). - - -C Enables compression (via ssh's -C flag). - - -c cipher - Selects the cipher to use for encrypting the data transfers. - This option is directly passed to ssh(1). - - -D sftp_server_path - Connect directly to a local sftp server (rather than via ssh(1)). - This option may be useful in debugging the client and server. - - -F ssh_config - Specifies an alternative per-user configuration file for ssh(1). - This option is directly passed to ssh(1). - - -f Requests that files be flushed to disk immediately after - transfer. When uploading files, this feature is only enabled if - the server implements the "fsync@openssh.com" extension. - - -i identity_file - Selects the file from which the identity (private key) for public - key authentication is read. This option is directly passed to - ssh(1). - - -l limit - Limits the used bandwidth, specified in Kbit/s. - - -o ssh_option - Can be used to pass options to ssh in the format used in - ssh_config(5). This is useful for specifying options for which - there is no separate sftp command-line flag. For example, to - specify an alternate port use: sftp -oPort=24. For full details - of the options listed below, and their possible values, see - ssh_config(5). - - AddressFamily - BatchMode - BindAddress - CanonicalDomains - CanonicalizeFallbackLocal - CanonicalizeHostname - CanonicalizeMaxDots - CanonicalizePermittedCNAMEs - ChallengeResponseAuthentication - CheckHostIP - Cipher - Ciphers - Compression - CompressionLevel - ConnectionAttempts - ConnectTimeout - ControlMaster - ControlPath - ControlPersist - GlobalKnownHostsFile - GSSAPIAuthentication - GSSAPIDelegateCredentials - HashKnownHosts - Host - HostbasedAuthentication - HostbasedKeyTypes - HostKeyAlgorithms - HostKeyAlias - HostName - IdentityFile - IdentitiesOnly - IPQoS - KbdInteractiveAuthentication - KbdInteractiveDevices - KexAlgorithms - LogLevel - MACs - NoHostAuthenticationForLocalhost - NumberOfPasswordPrompts - PasswordAuthentication - PKCS11Provider - Port - PreferredAuthentications - Protocol - ProxyCommand - PubkeyAuthentication - RekeyLimit - RhostsRSAAuthentication - RSAAuthentication - SendEnv - ServerAliveInterval - ServerAliveCountMax - StrictHostKeyChecking - TCPKeepAlive - UpdateHostKeys - UsePrivilegedPort - User - UserKnownHostsFile - VerifyHostKeyDNS - - -P port - Specifies the port to connect to on the remote host. - - -p Preserves modification times, access times, and modes from the - original files transferred. - - -q Quiet mode: disables the progress meter as well as warning and - diagnostic messages from ssh(1). - - -R num_requests - Specify how many requests may be outstanding at any one time. - Increasing this may slightly improve file transfer speed but will - increase memory usage. The default is 64 outstanding requests. - - -r Recursively copy entire directories when uploading and - downloading. Note that sftp does not follow symbolic links - encountered in the tree traversal. - - -S program - Name of the program to use for the encrypted connection. The - program must understand ssh(1) options. - - -s subsystem | sftp_server - Specifies the SSH2 subsystem or the path for an sftp server on - the remote host. A path is useful for using sftp over protocol - version 1, or when the remote sshd(8) does not have an sftp - subsystem configured. - - -v Raise logging level. This option is also passed to ssh. - -INTERACTIVE COMMANDS - Once in interactive mode, sftp understands a set of commands similar to - those of ftp(1). Commands are case insensitive. Pathnames that contain - spaces must be enclosed in quotes. Any special characters contained - within pathnames that are recognized by glob(3) must be escaped with - backslashes (M-bM-^@M-^X\M-bM-^@M-^Y). - - bye Quit sftp. - - cd path - Change remote directory to path. - - chgrp grp path - Change group of file path to grp. path may contain glob(3) - characters and may match multiple files. grp must be a numeric - GID. - - chmod mode path - Change permissions of file path to mode. path may contain - glob(3) characters and may match multiple files. - - chown own path - Change owner of file path to own. path may contain glob(3) - characters and may match multiple files. own must be a numeric - UID. - - df [-hi] [path] - Display usage information for the filesystem holding the current - directory (or path if specified). If the -h flag is specified, - the capacity information will be displayed using "human-readable" - suffixes. The -i flag requests display of inode information in - addition to capacity information. This command is only supported - on servers that implement the M-bM-^@M-^\statvfs@openssh.comM-bM-^@M-^] extension. - - exit Quit sftp. - - get [-afPpr] remote-path [local-path] - Retrieve the remote-path and store it on the local machine. If - the local path name is not specified, it is given the same name - it has on the remote machine. remote-path may contain glob(3) - characters and may match multiple files. If it does and - local-path is specified, then local-path must specify a - directory. - - If the -a flag is specified, then attempt to resume partial - transfers of existing files. Note that resumption assumes that - any partial copy of the local file matches the remote copy. If - the remote file contents differ from the partial local copy then - the resultant file is likely to be corrupt. - - If the -f flag is specified, then fsync(2) will be called after - the file transfer has completed to flush the file to disk. - - If either the -P or -p flag is specified, then full file - permissions and access times are copied too. - - If the -r flag is specified then directories will be copied - recursively. Note that sftp does not follow symbolic links when - performing recursive transfers. - - help Display help text. - - lcd path - Change local directory to path. - - lls [ls-options [path]] - Display local directory listing of either path or current - directory if path is not specified. ls-options may contain any - flags supported by the local system's ls(1) command. path may - contain glob(3) characters and may match multiple files. - - lmkdir path - Create local directory specified by path. - - ln [-s] oldpath newpath - Create a link from oldpath to newpath. If the -s flag is - specified the created link is a symbolic link, otherwise it is a - hard link. - - lpwd Print local working directory. - - ls [-1afhlnrSt] [path] - Display a remote directory listing of either path or the current - directory if path is not specified. path may contain glob(3) - characters and may match multiple files. - - The following flags are recognized and alter the behaviour of ls - accordingly: - - -1 Produce single columnar output. - - -a List files beginning with a dot (M-bM-^@M-^X.M-bM-^@M-^Y). - - -f Do not sort the listing. The default sort order is - lexicographical. - - -h When used with a long format option, use unit suffixes: - Byte, Kilobyte, Megabyte, Gigabyte, Terabyte, Petabyte, - and Exabyte in order to reduce the number of digits to - four or fewer using powers of 2 for sizes (K=1024, - M=1048576, etc.). - - -l Display additional details including permissions and - ownership information. - - -n Produce a long listing with user and group information - presented numerically. - - -r Reverse the sort order of the listing. - - -S Sort the listing by file size. - - -t Sort the listing by last modification time. - - lumask umask - Set local umask to umask. - - mkdir path - Create remote directory specified by path. - - progress - Toggle display of progress meter. - - put [-afPpr] local-path [remote-path] - Upload local-path and store it on the remote machine. If the - remote path name is not specified, it is given the same name it - has on the local machine. local-path may contain glob(3) - characters and may match multiple files. If it does and - remote-path is specified, then remote-path must specify a - directory. - - If the -a flag is specified, then attempt to resume partial - transfers of existing files. Note that resumption assumes that - any partial copy of the remote file matches the local copy. If - the local file contents differ from the remote local copy then - the resultant file is likely to be corrupt. - - If the -f flag is specified, then a request will be sent to the - server to call fsync(2) after the file has been transferred. - Note that this is only supported by servers that implement the - "fsync@openssh.com" extension. - - If either the -P or -p flag is specified, then full file - permissions and access times are copied too. - - If the -r flag is specified then directories will be copied - recursively. Note that sftp does not follow symbolic links when - performing recursive transfers. - - pwd Display remote working directory. - - quit Quit sftp. - - reget [-Ppr] remote-path [local-path] - Resume download of remote-path. Equivalent to get with the -a - flag set. - - reput [-Ppr] [local-path] remote-path - Resume upload of [local-path]. Equivalent to put with the -a - flag set. - - rename oldpath newpath - Rename remote file from oldpath to newpath. - - rm path - Delete remote file specified by path. - - rmdir path - Remove remote directory specified by path. - - symlink oldpath newpath - Create a symbolic link from oldpath to newpath. - - version - Display the sftp protocol version. - - !command - Execute command in local shell. - - ! Escape to local shell. - - ? Synonym for help. - -SEE ALSO - ftp(1), ls(1), scp(1), ssh(1), ssh-add(1), ssh-keygen(1), glob(3), - ssh_config(5), sftp-server(8), sshd(8) - - T. Ylonen and S. Lehtinen, SSH File Transfer Protocol, draft-ietf-secsh- - filexfer-00.txt, January 2001, work in progress material. - -OpenBSD 5.8 January 30, 2015 OpenBSD 5.8 diff --git a/crypto/openssh/ssh-add.0 b/crypto/openssh/ssh-add.0 deleted file mode 100644 index 29db710..0000000 --- a/crypto/openssh/ssh-add.0 +++ /dev/null @@ -1,129 +0,0 @@ -SSH-ADD(1) General Commands Manual SSH-ADD(1) - -NAME - ssh-add M-bM-^@M-^S adds private key identities to the authentication agent - -SYNOPSIS - ssh-add [-cDdkLlXx] [-E fingerprint_hash] [-t life] [file ...] - ssh-add -s pkcs11 - ssh-add -e pkcs11 - -DESCRIPTION - ssh-add adds private key identities to the authentication agent, - ssh-agent(1). When run without arguments, it adds the files - ~/.ssh/id_rsa, ~/.ssh/id_dsa, ~/.ssh/id_ecdsa, ~/.ssh/id_ed25519 and - ~/.ssh/identity. After loading a private key, ssh-add will try to load - corresponding certificate information from the filename obtained by - appending -cert.pub to the name of the private key file. Alternative - file names can be given on the command line. - - If any file requires a passphrase, ssh-add asks for the passphrase from - the user. The passphrase is read from the user's tty. ssh-add retries - the last passphrase if multiple identity files are given. - - The authentication agent must be running and the SSH_AUTH_SOCK - environment variable must contain the name of its socket for ssh-add to - work. - - The options are as follows: - - -c Indicates that added identities should be subject to confirmation - before being used for authentication. Confirmation is performed - by ssh-askpass(1). Successful confirmation is signaled by a zero - exit status from ssh-askpass(1), rather than text entered into - the requester. - - -D Deletes all identities from the agent. - - -d Instead of adding identities, removes identities from the agent. - If ssh-add has been run without arguments, the keys for the - default identities and their corresponding certificates will be - removed. Otherwise, the argument list will be interpreted as a - list of paths to public key files to specify keys and - certificates to be removed from the agent. If no public key is - found at a given path, ssh-add will append .pub and retry. - - -E fingerprint_hash - Specifies the hash algorithm used when displaying key - fingerprints. Valid options are: M-bM-^@M-^\md5M-bM-^@M-^] and M-bM-^@M-^\sha256M-bM-^@M-^]. The - default is M-bM-^@M-^\sha256M-bM-^@M-^]. - - -e pkcs11 - Remove keys provided by the PKCS#11 shared library pkcs11. - - -k When loading keys into or deleting keys from the agent, process - plain private keys only and skip certificates. - - -L Lists public key parameters of all identities currently - represented by the agent. - - -l Lists fingerprints of all identities currently represented by the - agent. - - -s pkcs11 - Add keys provided by the PKCS#11 shared library pkcs11. - - -t life - Set a maximum lifetime when adding identities to an agent. The - lifetime may be specified in seconds or in a time format - specified in sshd_config(5). - - -X Unlock the agent. - - -x Lock the agent with a password. - -ENVIRONMENT - DISPLAY and SSH_ASKPASS - If ssh-add needs a passphrase, it will read the passphrase from - the current terminal if it was run from a terminal. If ssh-add - does not have a terminal associated with it but DISPLAY and - SSH_ASKPASS are set, it will execute the program specified by - SSH_ASKPASS (by default M-bM-^@M-^\ssh-askpassM-bM-^@M-^]) and open an X11 window to - read the passphrase. This is particularly useful when calling - ssh-add from a .xsession or related script. (Note that on some - machines it may be necessary to redirect the input from /dev/null - to make this work.) - - SSH_AUTH_SOCK - Identifies the path of a UNIX-domain socket used to communicate - with the agent. - -FILES - ~/.ssh/identity - Contains the protocol version 1 RSA authentication identity of - the user. - - ~/.ssh/id_dsa - Contains the protocol version 2 DSA authentication identity of - the user. - - ~/.ssh/id_ecdsa - Contains the protocol version 2 ECDSA authentication identity of - the user. - - ~/.ssh/id_ed25519 - Contains the protocol version 2 Ed25519 authentication identity - of the user. - - ~/.ssh/id_rsa - Contains the protocol version 2 RSA authentication identity of - the user. - - Identity files should not be readable by anyone but the user. Note that - ssh-add ignores identity files if they are accessible by others. - -EXIT STATUS - Exit status is 0 on success, 1 if the specified command fails, and 2 if - ssh-add is unable to contact the authentication agent. - -SEE ALSO - ssh(1), ssh-agent(1), ssh-askpass(1), ssh-keygen(1), sshd(8) - -AUTHORS - OpenSSH is a derivative of the original and free ssh 1.2.12 release by - Tatu Ylonen. Aaron Campbell, Bob Beck, Markus Friedl, Niels Provos, Theo - de Raadt and Dug Song removed many bugs, re-added newer features and - created OpenSSH. Markus Friedl contributed the support for SSH protocol - versions 1.5 and 2.0. - -OpenBSD 5.8 March 30, 2015 OpenBSD 5.8 diff --git a/crypto/openssh/ssh-agent.0 b/crypto/openssh/ssh-agent.0 deleted file mode 100644 index 65bf6e7..0000000 --- a/crypto/openssh/ssh-agent.0 +++ /dev/null @@ -1,112 +0,0 @@ -SSH-AGENT(1) General Commands Manual SSH-AGENT(1) - -NAME - ssh-agent M-bM-^@M-^S authentication agent - -SYNOPSIS - ssh-agent [-c | -s] [-Dd] [-a bind_address] [-E fingerprint_hash] - [-t life] [command [arg ...]] - ssh-agent [-c | -s] -k - -DESCRIPTION - ssh-agent is a program to hold private keys used for public key - authentication (RSA, DSA, ECDSA, Ed25519). ssh-agent is usually started - in the beginning of an X-session or a login session, and all other - windows or programs are started as clients to the ssh-agent program. - Through use of environment variables the agent can be located and - automatically used for authentication when logging in to other machines - using ssh(1). - - The agent initially does not have any private keys. Keys are added using - ssh-add(1). Multiple identities may be stored in ssh-agent concurrently - and ssh(1) will automatically use them if present. ssh-add(1) is also - used to remove keys from ssh-agent and to query the keys that are held in - one. - - The options are as follows: - - -a bind_address - Bind the agent to the UNIX-domain socket bind_address. The - default is $TMPDIR/ssh-XXXXXXXXXX/agent.. - - -c Generate C-shell commands on stdout. This is the default if - SHELL looks like it's a csh style of shell. - - -D Foreground mode. When this option is specified ssh-agent will - not fork. - - -d Debug mode. When this option is specified ssh-agent will not - fork and will write debug information to standard error. - - -E fingerprint_hash - Specifies the hash algorithm used when displaying key - fingerprints. Valid options are: M-bM-^@M-^\md5M-bM-^@M-^] and M-bM-^@M-^\sha256M-bM-^@M-^]. The - default is M-bM-^@M-^\sha256M-bM-^@M-^]. - - -k Kill the current agent (given by the SSH_AGENT_PID environment - variable). - - -s Generate Bourne shell commands on stdout. This is the default if - SHELL does not look like it's a csh style of shell. - - -t life - Set a default value for the maximum lifetime of identities added - to the agent. The lifetime may be specified in seconds or in a - time format specified in sshd_config(5). A lifetime specified - for an identity with ssh-add(1) overrides this value. Without - this option the default maximum lifetime is forever. - - If a commandline is given, this is executed as a subprocess of the agent. - When the command dies, so does the agent. - - The idea is that the agent is run in the user's local PC, laptop, or - terminal. Authentication data need not be stored on any other machine, - and authentication passphrases never go over the network. However, the - connection to the agent is forwarded over SSH remote logins, and the user - can thus use the privileges given by the identities anywhere in the - network in a secure way. - - There are two main ways to get an agent set up: The first is that the - agent starts a new subcommand into which some environment variables are - exported, eg ssh-agent xterm &. The second is that the agent prints the - needed shell commands (either sh(1) or csh(1) syntax can be generated) - which can be evaluated in the calling shell, eg eval `ssh-agent -s` for - Bourne-type shells such as sh(1) or ksh(1) and eval `ssh-agent -c` for - csh(1) and derivatives. - - Later ssh(1) looks at these variables and uses them to establish a - connection to the agent. - - The agent will never send a private key over its request channel. - Instead, operations that require a private key will be performed by the - agent, and the result will be returned to the requester. This way, - private keys are not exposed to clients using the agent. - - A UNIX-domain socket is created and the name of this socket is stored in - the SSH_AUTH_SOCK environment variable. The socket is made accessible - only to the current user. This method is easily abused by root or - another instance of the same user. - - The SSH_AGENT_PID environment variable holds the agent's process ID. - - The agent exits automatically when the command given on the command line - terminates. - -FILES - $TMPDIR/ssh-XXXXXXXXXX/agent. - UNIX-domain sockets used to contain the connection to the - authentication agent. These sockets should only be readable by - the owner. The sockets should get automatically removed when the - agent exits. - -SEE ALSO - ssh(1), ssh-add(1), ssh-keygen(1), sshd(8) - -AUTHORS - OpenSSH is a derivative of the original and free ssh 1.2.12 release by - Tatu Ylonen. Aaron Campbell, Bob Beck, Markus Friedl, Niels Provos, Theo - de Raadt and Dug Song removed many bugs, re-added newer features and - created OpenSSH. Markus Friedl contributed the support for SSH protocol - versions 1.5 and 2.0. - -OpenBSD 5.8 April 24, 2015 OpenBSD 5.8 diff --git a/crypto/openssh/ssh-keygen.0 b/crypto/openssh/ssh-keygen.0 deleted file mode 100644 index a471a40..0000000 --- a/crypto/openssh/ssh-keygen.0 +++ /dev/null @@ -1,566 +0,0 @@ -SSH-KEYGEN(1) General Commands Manual SSH-KEYGEN(1) - -NAME - ssh-keygen M-bM-^@M-^S authentication key generation, management and conversion - -SYNOPSIS - ssh-keygen [-q] [-b bits] [-t dsa | ecdsa | ed25519 | rsa | rsa1] - [-N new_passphrase] [-C comment] [-f output_keyfile] - ssh-keygen -p [-P old_passphrase] [-N new_passphrase] [-f keyfile] - ssh-keygen -i [-m key_format] [-f input_keyfile] - ssh-keygen -e [-m key_format] [-f input_keyfile] - ssh-keygen -y [-f input_keyfile] - ssh-keygen -c [-P passphrase] [-C comment] [-f keyfile] - ssh-keygen -l [-v] [-E fingerprint_hash] [-f input_keyfile] - ssh-keygen -B [-f input_keyfile] - ssh-keygen -D pkcs11 - ssh-keygen -F hostname [-f known_hosts_file] [-l] - ssh-keygen -H [-f known_hosts_file] - ssh-keygen -R hostname [-f known_hosts_file] - ssh-keygen -r hostname [-f input_keyfile] [-g] - ssh-keygen -G output_file [-v] [-b bits] [-M memory] [-S start_point] - ssh-keygen -T output_file -f input_file [-v] [-a rounds] [-J num_lines] - [-j start_line] [-K checkpt] [-W generator] - ssh-keygen -s ca_key -I certificate_identity [-h] [-n principals] - [-O option] [-V validity_interval] [-z serial_number] file ... - ssh-keygen -L [-f input_keyfile] - ssh-keygen -A - ssh-keygen -k -f krl_file [-u] [-s ca_public] [-z version_number] - file ... - ssh-keygen -Q -f krl_file file ... - -DESCRIPTION - ssh-keygen generates, manages and converts authentication keys for - ssh(1). ssh-keygen can create RSA keys for use by SSH protocol version 1 - and DSA, ECDSA, Ed25519 or RSA keys for use by SSH protocol version 2. - The type of key to be generated is specified with the -t option. If - invoked without any arguments, ssh-keygen will generate an RSA key for - use in SSH protocol 2 connections. - - ssh-keygen is also used to generate groups for use in Diffie-Hellman - group exchange (DH-GEX). See the MODULI GENERATION section for details. - - Finally, ssh-keygen can be used to generate and update Key Revocation - Lists, and to test whether given keys have been revoked by one. See the - KEY REVOCATION LISTS section for details. - - Normally each user wishing to use SSH with public key authentication runs - this once to create the authentication key in ~/.ssh/identity, - ~/.ssh/id_dsa, ~/.ssh/id_ecdsa, ~/.ssh/id_ed25519 or ~/.ssh/id_rsa. - Additionally, the system administrator may use this to generate host - keys, as seen in /etc/rc. - - Normally this program generates the key and asks for a file in which to - store the private key. The public key is stored in a file with the same - name but M-bM-^@M-^\.pubM-bM-^@M-^] appended. The program also asks for a passphrase. The - passphrase may be empty to indicate no passphrase (host keys must have an - empty passphrase), or it may be a string of arbitrary length. A - passphrase is similar to a password, except it can be a phrase with a - series of words, punctuation, numbers, whitespace, or any string of - characters you want. Good passphrases are 10-30 characters long, are not - simple sentences or otherwise easily guessable (English prose has only - 1-2 bits of entropy per character, and provides very bad passphrases), - and contain a mix of upper and lowercase letters, numbers, and non- - alphanumeric characters. The passphrase can be changed later by using - the -p option. - - There is no way to recover a lost passphrase. If the passphrase is lost - or forgotten, a new key must be generated and the corresponding public - key copied to other machines. - - For RSA1 keys, there is also a comment field in the key file that is only - for convenience to the user to help identify the key. The comment can - tell what the key is for, or whatever is useful. The comment is - initialized to M-bM-^@M-^\user@hostM-bM-^@M-^] when the key is created, but can be changed - using the -c option. - - After a key is generated, instructions below detail where the keys should - be placed to be activated. - - The options are as follows: - - -A For each of the key types (rsa1, rsa, dsa, ecdsa and ed25519) for - which host keys do not exist, generate the host keys with the - default key file path, an empty passphrase, default bits for the - key type, and default comment. This is used by /etc/rc to - generate new host keys. - - -a rounds - When saving a new-format private key (i.e. an ed25519 key or any - SSH protocol 2 key when the -o flag is set), this option - specifies the number of KDF (key derivation function) rounds - used. Higher numbers result in slower passphrase verification - and increased resistance to brute-force password cracking (should - the keys be stolen). - - When screening DH-GEX candidates ( using the -T command). This - option specifies the number of primality tests to perform. - - -B Show the bubblebabble digest of specified private or public key - file. - - -b bits - Specifies the number of bits in the key to create. For RSA keys, - the minimum size is 1024 bits and the default is 2048 bits. - Generally, 2048 bits is considered sufficient. DSA keys must be - exactly 1024 bits as specified by FIPS 186-2. For ECDSA keys, - the -b flag determines the key length by selecting from one of - three elliptic curve sizes: 256, 384 or 521 bits. Attempting to - use bit lengths other than these three values for ECDSA keys will - fail. Ed25519 keys have a fixed length and the -b flag will be - ignored. - - -C comment - Provides a new comment. - - -c Requests changing the comment in the private and public key - files. This operation is only supported for RSA1 keys. The - program will prompt for the file containing the private keys, for - the passphrase if the key has one, and for the new comment. - - -D pkcs11 - Download the RSA public keys provided by the PKCS#11 shared - library pkcs11. When used in combination with -s, this option - indicates that a CA key resides in a PKCS#11 token (see the - CERTIFICATES section for details). - - -E fingerprint_hash - Specifies the hash algorithm used when displaying key - fingerprints. Valid options are: M-bM-^@M-^\md5M-bM-^@M-^] and M-bM-^@M-^\sha256M-bM-^@M-^]. The - default is M-bM-^@M-^\sha256M-bM-^@M-^]. - - -e This option will read a private or public OpenSSH key file and - print to stdout the key in one of the formats specified by the -m - option. The default export format is M-bM-^@M-^\RFC4716M-bM-^@M-^]. This option - allows exporting OpenSSH keys for use by other programs, - including several commercial SSH implementations. - - -F hostname - Search for the specified hostname in a known_hosts file, listing - any occurrences found. This option is useful to find hashed host - names or addresses and may also be used in conjunction with the - -H option to print found keys in a hashed format. - - -f filename - Specifies the filename of the key file. - - -G output_file - Generate candidate primes for DH-GEX. These primes must be - screened for safety (using the -T option) before use. - - -g Use generic DNS format when printing fingerprint resource records - using the -r command. - - -H Hash a known_hosts file. This replaces all hostnames and - addresses with hashed representations within the specified file; - the original content is moved to a file with a .old suffix. - These hashes may be used normally by ssh and sshd, but they do - not reveal identifying information should the file's contents be - disclosed. This option will not modify existing hashed hostnames - and is therefore safe to use on files that mix hashed and non- - hashed names. - - -h When signing a key, create a host certificate instead of a user - certificate. Please see the CERTIFICATES section for details. - - -I certificate_identity - Specify the key identity when signing a public key. Please see - the CERTIFICATES section for details. - - -i This option will read an unencrypted private (or public) key file - in the format specified by the -m option and print an OpenSSH - compatible private (or public) key to stdout. This option allows - importing keys from other software, including several commercial - SSH implementations. The default import format is M-bM-^@M-^\RFC4716M-bM-^@M-^]. - - -J num_lines - Exit after screening the specified number of lines while - performing DH candidate screening using the -T option. - - -j start_line - Start screening at the specified line number while performing DH - candidate screening using the -T option. - - -K checkpt - Write the last line processed to the file checkpt while - performing DH candidate screening using the -T option. This will - be used to skip lines in the input file that have already been - processed if the job is restarted. - - -k Generate a KRL file. In this mode, ssh-keygen will generate a - KRL file at the location specified via the -f flag that revokes - every key or certificate presented on the command line. - Keys/certificates to be revoked may be specified by public key - file or using the format described in the KEY REVOCATION LISTS - section. - - -L Prints the contents of a certificate. - - -l Show fingerprint of specified public key file. Private RSA1 keys - are also supported. For RSA and DSA keys ssh-keygen tries to - find the matching public key file and prints its fingerprint. If - combined with -v, an ASCII art representation of the key is - supplied with the fingerprint. - - -M memory - Specify the amount of memory to use (in megabytes) when - generating candidate moduli for DH-GEX. - - -m key_format - Specify a key format for the -i (import) or -e (export) - conversion options. The supported key formats are: M-bM-^@M-^\RFC4716M-bM-^@M-^] - (RFC 4716/SSH2 public or private key), M-bM-^@M-^\PKCS8M-bM-^@M-^] (PEM PKCS8 public - key) or M-bM-^@M-^\PEMM-bM-^@M-^] (PEM public key). The default conversion format is - M-bM-^@M-^\RFC4716M-bM-^@M-^]. - - -N new_passphrase - Provides the new passphrase. - - -n principals - Specify one or more principals (user or host names) to be - included in a certificate when signing a key. Multiple - principals may be specified, separated by commas. Please see the - CERTIFICATES section for details. - - -O option - Specify a certificate option when signing a key. This option may - be specified multiple times. Please see the CERTIFICATES section - for details. The options that are valid for user certificates - are: - - clear Clear all enabled permissions. This is useful for - clearing the default set of permissions so permissions - may be added individually. - - force-command=command - Forces the execution of command instead of any shell or - command specified by the user when the certificate is - used for authentication. - - no-agent-forwarding - Disable ssh-agent(1) forwarding (permitted by default). - - no-port-forwarding - Disable port forwarding (permitted by default). - - no-pty Disable PTY allocation (permitted by default). - - no-user-rc - Disable execution of ~/.ssh/rc by sshd(8) (permitted by - default). - - no-x11-forwarding - Disable X11 forwarding (permitted by default). - - permit-agent-forwarding - Allows ssh-agent(1) forwarding. - - permit-port-forwarding - Allows port forwarding. - - permit-pty - Allows PTY allocation. - - permit-user-rc - Allows execution of ~/.ssh/rc by sshd(8). - - permit-x11-forwarding - Allows X11 forwarding. - - source-address=address_list - Restrict the source addresses from which the certificate - is considered valid. The address_list is a comma- - separated list of one or more address/netmask pairs in - CIDR format. - - At present, no options are valid for host keys. - - -o Causes ssh-keygen to save SSH protocol 2 private keys using the - new OpenSSH format rather than the more compatible PEM format. - The new format has increased resistance to brute-force password - cracking but is not supported by versions of OpenSSH prior to - 6.5. Ed25519 keys always use the new private key format. - - -P passphrase - Provides the (old) passphrase. - - -p Requests changing the passphrase of a private key file instead of - creating a new private key. The program will prompt for the file - containing the private key, for the old passphrase, and twice for - the new passphrase. - - -Q Test whether keys have been revoked in a KRL. - - -q Silence ssh-keygen. - - -R hostname - Removes all keys belonging to hostname from a known_hosts file. - This option is useful to delete hashed hosts (see the -H option - above). - - -r hostname - Print the SSHFP fingerprint resource record named hostname for - the specified public key file. - - -S start - Specify start point (in hex) when generating candidate moduli for - DH-GEX. - - -s ca_key - Certify (sign) a public key using the specified CA key. Please - see the CERTIFICATES section for details. - - When generating a KRL, -s specifies a path to a CA public key - file used to revoke certificates directly by key ID or serial - number. See the KEY REVOCATION LISTS section for details. - - -T output_file - Test DH group exchange candidate primes (generated using the -G - option) for safety. - - -t dsa | ecdsa | ed25519 | rsa | rsa1 - Specifies the type of key to create. The possible values are - M-bM-^@M-^\rsa1M-bM-^@M-^] for protocol version 1 and M-bM-^@M-^\dsaM-bM-^@M-^], M-bM-^@M-^\ecdsaM-bM-^@M-^], M-bM-^@M-^\ed25519M-bM-^@M-^], or - M-bM-^@M-^\rsaM-bM-^@M-^] for protocol version 2. - - -u Update a KRL. When specified with -k, keys listed via the - command line are added to the existing KRL rather than a new KRL - being created. - - -V validity_interval - Specify a validity interval when signing a certificate. A - validity interval may consist of a single time, indicating that - the certificate is valid beginning now and expiring at that time, - or may consist of two times separated by a colon to indicate an - explicit time interval. The start time may be specified as a - date in YYYYMMDD format, a time in YYYYMMDDHHMMSS format or a - relative time (to the current time) consisting of a minus sign - followed by a relative time in the format described in the TIME - FORMATS section of sshd_config(5). The end time may be specified - as a YYYYMMDD date, a YYYYMMDDHHMMSS time or a relative time - starting with a plus character. - - For example: M-bM-^@M-^\+52w1dM-bM-^@M-^] (valid from now to 52 weeks and one day - from now), M-bM-^@M-^\-4w:+4wM-bM-^@M-^] (valid from four weeks ago to four weeks - from now), M-bM-^@M-^\20100101123000:20110101123000M-bM-^@M-^] (valid from 12:30 PM, - January 1st, 2010 to 12:30 PM, January 1st, 2011), M-bM-^@M-^\-1d:20110101M-bM-^@M-^] - (valid from yesterday to midnight, January 1st, 2011). - - -v Verbose mode. Causes ssh-keygen to print debugging messages - about its progress. This is helpful for debugging moduli - generation. Multiple -v options increase the verbosity. The - maximum is 3. - - -W generator - Specify desired generator when testing candidate moduli for DH- - GEX. - - -y This option will read a private OpenSSH format file and print an - OpenSSH public key to stdout. - - -z serial_number - Specifies a serial number to be embedded in the certificate to - distinguish this certificate from others from the same CA. The - default serial number is zero. - - When generating a KRL, the -z flag is used to specify a KRL - version number. - -MODULI GENERATION - ssh-keygen may be used to generate groups for the Diffie-Hellman Group - Exchange (DH-GEX) protocol. Generating these groups is a two-step - process: first, candidate primes are generated using a fast, but memory - intensive process. These candidate primes are then tested for - suitability (a CPU-intensive process). - - Generation of primes is performed using the -G option. The desired - length of the primes may be specified by the -b option. For example: - - # ssh-keygen -G moduli-2048.candidates -b 2048 - - By default, the search for primes begins at a random point in the desired - length range. This may be overridden using the -S option, which - specifies a different start point (in hex). - - Once a set of candidates have been generated, they must be screened for - suitability. This may be performed using the -T option. In this mode - ssh-keygen will read candidates from standard input (or a file specified - using the -f option). For example: - - # ssh-keygen -T moduli-2048 -f moduli-2048.candidates - - By default, each candidate will be subjected to 100 primality tests. - This may be overridden using the -a option. The DH generator value will - be chosen automatically for the prime under consideration. If a specific - generator is desired, it may be requested using the -W option. Valid - generator values are 2, 3, and 5. - - Screened DH groups may be installed in /etc/moduli. It is important that - this file contains moduli of a range of bit lengths and that both ends of - a connection share common moduli. - -CERTIFICATES - ssh-keygen supports signing of keys to produce certificates that may be - used for user or host authentication. Certificates consist of a public - key, some identity information, zero or more principal (user or host) - names and a set of options that are signed by a Certification Authority - (CA) key. Clients or servers may then trust only the CA key and verify - its signature on a certificate rather than trusting many user/host keys. - Note that OpenSSH certificates are a different, and much simpler, format - to the X.509 certificates used in ssl(8). - - ssh-keygen supports two types of certificates: user and host. User - certificates authenticate users to servers, whereas host certificates - authenticate server hosts to users. To generate a user certificate: - - $ ssh-keygen -s /path/to/ca_key -I key_id /path/to/user_key.pub - - The resultant certificate will be placed in /path/to/user_key-cert.pub. - A host certificate requires the -h option: - - $ ssh-keygen -s /path/to/ca_key -I key_id -h /path/to/host_key.pub - - The host certificate will be output to /path/to/host_key-cert.pub. - - It is possible to sign using a CA key stored in a PKCS#11 token by - providing the token library using -D and identifying the CA key by - providing its public half as an argument to -s: - - $ ssh-keygen -s ca_key.pub -D libpkcs11.so -I key_id host_key.pub - - In all cases, key_id is a "key identifier" that is logged by the server - when the certificate is used for authentication. - - Certificates may be limited to be valid for a set of principal - (user/host) names. By default, generated certificates are valid for all - users or hosts. To generate a certificate for a specified set of - principals: - - $ ssh-keygen -s ca_key -I key_id -n user1,user2 user_key.pub - $ ssh-keygen -s ca_key -I key_id -h -n host.domain user_key.pub - - Additional limitations on the validity and use of user certificates may - be specified through certificate options. A certificate option may - disable features of the SSH session, may be valid only when presented - from particular source addresses or may force the use of a specific - command. For a list of valid certificate options, see the documentation - for the -O option above. - - Finally, certificates may be defined with a validity lifetime. The -V - option allows specification of certificate start and end times. A - certificate that is presented at a time outside this range will not be - considered valid. By default, certificates are valid from UNIX Epoch to - the distant future. - - For certificates to be used for user or host authentication, the CA - public key must be trusted by sshd(8) or ssh(1). Please refer to those - manual pages for details. - -KEY REVOCATION LISTS - ssh-keygen is able to manage OpenSSH format Key Revocation Lists (KRLs). - These binary files specify keys or certificates to be revoked using a - compact format, taking as little as one bit per certificate if they are - being revoked by serial number. - - KRLs may be generated using the -k flag. This option reads one or more - files from the command line and generates a new KRL. The files may - either contain a KRL specification (see below) or public keys, listed one - per line. Plain public keys are revoked by listing their hash or - contents in the KRL and certificates revoked by serial number or key ID - (if the serial is zero or not available). - - Revoking keys using a KRL specification offers explicit control over the - types of record used to revoke keys and may be used to directly revoke - certificates by serial number or key ID without having the complete - original certificate on hand. A KRL specification consists of lines - containing one of the following directives followed by a colon and some - directive-specific information. - - serial: serial_number[-serial_number] - Revokes a certificate with the specified serial number. Serial - numbers are 64-bit values, not including zero and may be - expressed in decimal, hex or octal. If two serial numbers are - specified separated by a hyphen, then the range of serial numbers - including and between each is revoked. The CA key must have been - specified on the ssh-keygen command line using the -s option. - - id: key_id - Revokes a certificate with the specified key ID string. The CA - key must have been specified on the ssh-keygen command line using - the -s option. - - key: public_key - Revokes the specified key. If a certificate is listed, then it - is revoked as a plain public key. - - sha1: public_key - Revokes the specified key by its SHA1 hash. - - KRLs may be updated using the -u flag in addition to -k. When this - option is specified, keys listed via the command line are merged into the - KRL, adding to those already there. - - It is also possible, given a KRL, to test whether it revokes a particular - key (or keys). The -Q flag will query an existing KRL, testing each key - specified on the commandline. If any key listed on the command line has - been revoked (or an error encountered) then ssh-keygen will exit with a - non-zero exit status. A zero exit status will only be returned if no key - was revoked. - -FILES - ~/.ssh/identity - Contains the protocol version 1 RSA authentication identity of - the user. This file should not be readable by anyone but the - user. It is possible to specify a passphrase when generating the - key; that passphrase will be used to encrypt the private part of - this file using 3DES. This file is not automatically accessed by - ssh-keygen but it is offered as the default file for the private - key. ssh(1) will read this file when a login attempt is made. - - ~/.ssh/identity.pub - Contains the protocol version 1 RSA public key for - authentication. The contents of this file should be added to - ~/.ssh/authorized_keys on all machines where the user wishes to - log in using RSA authentication. There is no need to keep the - contents of this file secret. - - ~/.ssh/id_dsa - ~/.ssh/id_ecdsa - ~/.ssh/id_ed25519 - ~/.ssh/id_rsa - Contains the protocol version 2 DSA, ECDSA, Ed25519 or RSA - authentication identity of the user. This file should not be - readable by anyone but the user. It is possible to specify a - passphrase when generating the key; that passphrase will be used - to encrypt the private part of this file using 128-bit AES. This - file is not automatically accessed by ssh-keygen but it is - offered as the default file for the private key. ssh(1) will - read this file when a login attempt is made. - - ~/.ssh/id_dsa.pub - ~/.ssh/id_ecdsa.pub - ~/.ssh/id_ed25519.pub - ~/.ssh/id_rsa.pub - Contains the protocol version 2 DSA, ECDSA, Ed25519 or RSA public - key for authentication. The contents of this file should be - added to ~/.ssh/authorized_keys on all machines where the user - wishes to log in using public key authentication. There is no - need to keep the contents of this file secret. - - /etc/moduli - Contains Diffie-Hellman groups used for DH-GEX. The file format - is described in moduli(5). - -SEE ALSO - ssh(1), ssh-add(1), ssh-agent(1), moduli(5), sshd(8) - - The Secure Shell (SSH) Public Key File Format, RFC 4716, 2006. - -AUTHORS - OpenSSH is a derivative of the original and free ssh 1.2.12 release by - Tatu Ylonen. Aaron Campbell, Bob Beck, Markus Friedl, Niels Provos, Theo - de Raadt and Dug Song removed many bugs, re-added newer features and - created OpenSSH. Markus Friedl contributed the support for SSH protocol - versions 1.5 and 2.0. - -OpenBSD 5.8 July 3, 2015 OpenBSD 5.8 diff --git a/crypto/openssh/ssh-keyscan.0 b/crypto/openssh/ssh-keyscan.0 deleted file mode 100644 index 500c1dd..0000000 --- a/crypto/openssh/ssh-keyscan.0 +++ /dev/null @@ -1,109 +0,0 @@ -SSH-KEYSCAN(1) General Commands Manual SSH-KEYSCAN(1) - -NAME - ssh-keyscan M-bM-^@M-^S gather ssh public keys - -SYNOPSIS - ssh-keyscan [-46Hv] [-f file] [-p port] [-T timeout] [-t type] - [host | addrlist namelist] ... - -DESCRIPTION - ssh-keyscan is a utility for gathering the public ssh host keys of a - number of hosts. It was designed to aid in building and verifying - ssh_known_hosts files. ssh-keyscan provides a minimal interface suitable - for use by shell and perl scripts. - - ssh-keyscan uses non-blocking socket I/O to contact as many hosts as - possible in parallel, so it is very efficient. The keys from a domain of - 1,000 hosts can be collected in tens of seconds, even when some of those - hosts are down or do not run ssh. For scanning, one does not need login - access to the machines that are being scanned, nor does the scanning - process involve any encryption. - - The options are as follows: - - -4 Forces ssh-keyscan to use IPv4 addresses only. - - -6 Forces ssh-keyscan to use IPv6 addresses only. - - -f file - Read hosts or M-bM-^@M-^\addrlist namelistM-bM-^@M-^] pairs from file, one per line. - If - is supplied instead of a filename, ssh-keyscan will read - hosts or M-bM-^@M-^\addrlist namelistM-bM-^@M-^] pairs from the standard input. - - -H Hash all hostnames and addresses in the output. Hashed names may - be used normally by ssh and sshd, but they do not reveal - identifying information should the file's contents be disclosed. - - -p port - Port to connect to on the remote host. - - -T timeout - Set the timeout for connection attempts. If timeout seconds have - elapsed since a connection was initiated to a host or since the - last time anything was read from that host, then the connection - is closed and the host in question considered unavailable. - Default is 5 seconds. - - -t type - Specifies the type of the key to fetch from the scanned hosts. - The possible values are M-bM-^@M-^\rsa1M-bM-^@M-^] for protocol version 1 and M-bM-^@M-^\dsaM-bM-^@M-^], - M-bM-^@M-^\ecdsaM-bM-^@M-^], M-bM-^@M-^\ed25519M-bM-^@M-^], or M-bM-^@M-^\rsaM-bM-^@M-^] for protocol version 2. Multiple - values may be specified by separating them with commas. The - default is to fetch M-bM-^@M-^\rsaM-bM-^@M-^], M-bM-^@M-^\ecdsaM-bM-^@M-^], and M-bM-^@M-^\ed25519M-bM-^@M-^] keys. - - -v Verbose mode. Causes ssh-keyscan to print debugging messages - about its progress. - -SECURITY - If an ssh_known_hosts file is constructed using ssh-keyscan without - verifying the keys, users will be vulnerable to man in the middle - attacks. On the other hand, if the security model allows such a risk, - ssh-keyscan can help in the detection of tampered keyfiles or man in the - middle attacks which have begun after the ssh_known_hosts file was - created. - -FILES - Input format: - - 1.2.3.4,1.2.4.4 name.my.domain,name,n.my.domain,n,1.2.3.4,1.2.4.4 - - Output format for RSA1 keys: - - host-or-namelist bits exponent modulus - - Output format for RSA, DSA, ECDSA, and Ed25519 keys: - - host-or-namelist keytype base64-encoded-key - - Where keytype is either M-bM-^@M-^\ecdsa-sha2-nistp256M-bM-^@M-^], M-bM-^@M-^\ecdsa-sha2-nistp384M-bM-^@M-^], - M-bM-^@M-^\ecdsa-sha2-nistp521M-bM-^@M-^], M-bM-^@M-^\ssh-ed25519M-bM-^@M-^], M-bM-^@M-^\ssh-dssM-bM-^@M-^] or M-bM-^@M-^\ssh-rsaM-bM-^@M-^]. - - /etc/ssh/ssh_known_hosts - -EXAMPLES - Print the rsa host key for machine hostname: - - $ ssh-keyscan hostname - - Find all hosts from the file ssh_hosts which have new or different keys - from those in the sorted file ssh_known_hosts: - - $ ssh-keyscan -t rsa,dsa,ecdsa,ed25519 -f ssh_hosts | \ - sort -u - ssh_known_hosts | diff ssh_known_hosts - - -SEE ALSO - ssh(1), sshd(8) - -AUTHORS - David Mazieres wrote the initial version, and Wayne - Davison added support for protocol version - 2. - -BUGS - It generates "Connection closed by remote host" messages on the consoles - of all the machines it scans if the server is older than version 2.9. - This is because it opens a connection to the ssh port, reads the public - key, and drops the connection as soon as it gets the key. - -OpenBSD 5.8 August 30, 2014 OpenBSD 5.8 diff --git a/crypto/openssh/ssh-keysign.0 b/crypto/openssh/ssh-keysign.0 deleted file mode 100644 index 7db72c7..0000000 --- a/crypto/openssh/ssh-keysign.0 +++ /dev/null @@ -1,53 +0,0 @@ -SSH-KEYSIGN(8) System Manager's Manual SSH-KEYSIGN(8) - -NAME - ssh-keysign M-bM-^@M-^S ssh helper program for host-based authentication - -SYNOPSIS - ssh-keysign - -DESCRIPTION - ssh-keysign is used by ssh(1) to access the local host keys and generate - the digital signature required during host-based authentication with SSH - protocol version 2. - - ssh-keysign is disabled by default and can only be enabled in the global - client configuration file /etc/ssh/ssh_config by setting EnableSSHKeysign - to M-bM-^@M-^\yesM-bM-^@M-^]. - - ssh-keysign is not intended to be invoked by the user, but from ssh(1). - See ssh(1) and sshd(8) for more information about host-based - authentication. - -FILES - /etc/ssh/ssh_config - Controls whether ssh-keysign is enabled. - - /etc/ssh/ssh_host_dsa_key - /etc/ssh/ssh_host_ecdsa_key - /etc/ssh/ssh_host_ed25519_key - /etc/ssh/ssh_host_rsa_key - These files contain the private parts of the host keys used to - generate the digital signature. They should be owned by root, - readable only by root, and not accessible to others. Since they - are readable only by root, ssh-keysign must be set-uid root if - host-based authentication is used. - - /etc/ssh/ssh_host_dsa_key-cert.pub - /etc/ssh/ssh_host_ecdsa_key-cert.pub - /etc/ssh/ssh_host_ed25519_key-cert.pub - /etc/ssh/ssh_host_rsa_key-cert.pub - If these files exist they are assumed to contain public - certificate information corresponding with the private keys - above. - -SEE ALSO - ssh(1), ssh-keygen(1), ssh_config(5), sshd(8) - -HISTORY - ssh-keysign first appeared in OpenBSD 3.2. - -AUTHORS - Markus Friedl - -OpenBSD 5.8 December 7, 2013 OpenBSD 5.8 diff --git a/crypto/openssh/ssh-pkcs11-helper.0 b/crypto/openssh/ssh-pkcs11-helper.0 deleted file mode 100644 index 7fac805..0000000 --- a/crypto/openssh/ssh-pkcs11-helper.0 +++ /dev/null @@ -1,25 +0,0 @@ -SSH-PKCS11-HELPER(8) System Manager's Manual SSH-PKCS11-HELPER(8) - -NAME - ssh-pkcs11-helper M-bM-^@M-^S ssh-agent helper program for PKCS#11 support - -SYNOPSIS - ssh-pkcs11-helper - -DESCRIPTION - ssh-pkcs11-helper is used by ssh-agent(1) to access keys provided by a - PKCS#11 token. - - ssh-pkcs11-helper is not intended to be invoked by the user, but from - ssh-agent(1). - -SEE ALSO - ssh(1), ssh-add(1), ssh-agent(1) - -HISTORY - ssh-pkcs11-helper first appeared in OpenBSD 4.7. - -AUTHORS - Markus Friedl - -OpenBSD 5.8 July 16, 2013 OpenBSD 5.8 diff --git a/crypto/openssh/ssh.0 b/crypto/openssh/ssh.0 deleted file mode 100644 index ad4817a..0000000 --- a/crypto/openssh/ssh.0 +++ /dev/null @@ -1,972 +0,0 @@ -SSH(1) General Commands Manual SSH(1) - -NAME - ssh M-bM-^@M-^S OpenSSH SSH client (remote login program) - -SYNOPSIS - ssh [-1246AaCfGgKkMNnqsTtVvXxYy] [-b bind_address] [-c cipher_spec] - [-D [bind_address:]port] [-E log_file] [-e escape_char] - [-F configfile] [-I pkcs11] [-i identity_file] [-L address] - [-l login_name] [-m mac_spec] [-O ctl_cmd] [-o option] [-p port] - [-Q cipher | cipher-auth | mac | kex | key | protocol-version] - [-R address] [-S ctl_path] [-W host:port] [-w local_tun[:remote_tun]] - [user@]hostname [command] - -DESCRIPTION - ssh (SSH client) is a program for logging into a remote machine and for - executing commands on a remote machine. It is intended to replace rlogin - and rsh, and provide secure encrypted communications between two - untrusted hosts over an insecure network. X11 connections, arbitrary TCP - ports and UNIX-domain sockets can also be forwarded over the secure - channel. - - ssh connects and logs into the specified hostname (with optional user - name). The user must prove his/her identity to the remote machine using - one of several methods depending on the protocol version used (see - below). - - If command is specified, it is executed on the remote host instead of a - login shell. - - The options are as follows: - - -1 Forces ssh to try protocol version 1 only. - - -2 Forces ssh to try protocol version 2 only. - - -4 Forces ssh to use IPv4 addresses only. - - -6 Forces ssh to use IPv6 addresses only. - - -A Enables forwarding of the authentication agent connection. This - can also be specified on a per-host basis in a configuration - file. - - Agent forwarding should be enabled with caution. Users with the - ability to bypass file permissions on the remote host (for the - agent's UNIX-domain socket) can access the local agent through - the forwarded connection. An attacker cannot obtain key material - from the agent, however they can perform operations on the keys - that enable them to authenticate using the identities loaded into - the agent. - - -a Disables forwarding of the authentication agent connection. - - -b bind_address - Use bind_address on the local machine as the source address of - the connection. Only useful on systems with more than one - address. - - -C Requests compression of all data (including stdin, stdout, - stderr, and data for forwarded X11, TCP and UNIX-domain - connections). The compression algorithm is the same used by - gzip(1), and the M-bM-^@M-^\levelM-bM-^@M-^] can be controlled by the - CompressionLevel option for protocol version 1. Compression is - desirable on modem lines and other slow connections, but will - only slow down things on fast networks. The default value can be - set on a host-by-host basis in the configuration files; see the - Compression option. - - -c cipher_spec - Selects the cipher specification for encrypting the session. - - Protocol version 1 allows specification of a single cipher. The - supported values are M-bM-^@M-^\3desM-bM-^@M-^], M-bM-^@M-^\blowfishM-bM-^@M-^], and M-bM-^@M-^\desM-bM-^@M-^]. For protocol - version 2, cipher_spec is a comma-separated list of ciphers - listed in order of preference. See the Ciphers keyword in - ssh_config(5) for more information. - - -D [bind_address:]port - Specifies a local M-bM-^@M-^\dynamicM-bM-^@M-^] application-level port forwarding. - This works by allocating a socket to listen to port on the local - side, optionally bound to the specified bind_address. Whenever a - connection is made to this port, the connection is forwarded over - the secure channel, and the application protocol is then used to - determine where to connect to from the remote machine. Currently - the SOCKS4 and SOCKS5 protocols are supported, and ssh will act - as a SOCKS server. Only root can forward privileged ports. - Dynamic port forwardings can also be specified in the - configuration file. - - IPv6 addresses can be specified by enclosing the address in - square brackets. Only the superuser can forward privileged - ports. By default, the local port is bound in accordance with - the GatewayPorts setting. However, an explicit bind_address may - be used to bind the connection to a specific address. The - bind_address of M-bM-^@M-^\localhostM-bM-^@M-^] indicates that the listening port be - bound for local use only, while an empty address or M-bM-^@M-^X*M-bM-^@M-^Y indicates - that the port should be available from all interfaces. - - -E log_file - Append debug logs to log_file instead of standard error. - - -e escape_char - Sets the escape character for sessions with a pty (default: M-bM-^@M-^X~M-bM-^@M-^Y). - The escape character is only recognized at the beginning of a - line. The escape character followed by a dot (M-bM-^@M-^X.M-bM-^@M-^Y) closes the - connection; followed by control-Z suspends the connection; and - followed by itself sends the escape character once. Setting the - character to M-bM-^@M-^\noneM-bM-^@M-^] disables any escapes and makes the session - fully transparent. - - -F configfile - Specifies an alternative per-user configuration file. If a - configuration file is given on the command line, the system-wide - configuration file (/etc/ssh/ssh_config) will be ignored. The - default for the per-user configuration file is ~/.ssh/config. - - -f Requests ssh to go to background just before command execution. - This is useful if ssh is going to ask for passwords or - passphrases, but the user wants it in the background. This - implies -n. The recommended way to start X11 programs at a - remote site is with something like ssh -f host xterm. - - If the ExitOnForwardFailure configuration option is set to M-bM-^@M-^\yesM-bM-^@M-^], - then a client started with -f will wait for all remote port - forwards to be successfully established before placing itself in - the background. - - -G Causes ssh to print its configuration after evaluating Host and - Match blocks and exit. - - -g Allows remote hosts to connect to local forwarded ports. If used - on a multiplexed connection, then this option must be specified - on the master process. - - -I pkcs11 - Specify the PKCS#11 shared library ssh should use to communicate - with a PKCS#11 token providing the user's private RSA key. - - -i identity_file - Selects a file from which the identity (private key) for public - key authentication is read. The default is ~/.ssh/identity for - protocol version 1, and ~/.ssh/id_dsa, ~/.ssh/id_ecdsa, - ~/.ssh/id_ed25519 and ~/.ssh/id_rsa for protocol version 2. - Identity files may also be specified on a per-host basis in the - configuration file. It is possible to have multiple -i options - (and multiple identities specified in configuration files). ssh - will also try to load certificate information from the filename - obtained by appending -cert.pub to identity filenames. - - -K Enables GSSAPI-based authentication and forwarding (delegation) - of GSSAPI credentials to the server. - - -k Disables forwarding (delegation) of GSSAPI credentials to the - server. - - -L [bind_address:]port:host:hostport - -L [bind_address:]port:remote_socket - -L local_socket:host:hostport - -L local_socket:remote_socket - Specifies that connections to the given TCP port or Unix socket - on the local (client) host are to be forwarded to the given host - and port, or Unix socket, on the remote side. This works by - allocating a socket to listen to either a TCP port on the local - side, optionally bound to the specified bind_address, or to a - Unix socket. Whenever a connection is made to the local port or - socket, the connection is forwarded over the secure channel, and - a connection is made to either host port hostport, or the Unix - socket remote_socket, from the remote machine. - - Port forwardings can also be specified in the configuration file. - Only the superuser can forward privileged ports. IPv6 addresses - can be specified by enclosing the address in square brackets. - - By default, the local port is bound in accordance with the - GatewayPorts setting. However, an explicit bind_address may be - used to bind the connection to a specific address. The - bind_address of M-bM-^@M-^\localhostM-bM-^@M-^] indicates that the listening port be - bound for local use only, while an empty address or M-bM-^@M-^X*M-bM-^@M-^Y indicates - that the port should be available from all interfaces. - - -l login_name - Specifies the user to log in as on the remote machine. This also - may be specified on a per-host basis in the configuration file. - - -M Places the ssh client into M-bM-^@M-^\masterM-bM-^@M-^] mode for connection sharing. - Multiple -M options places ssh into M-bM-^@M-^\masterM-bM-^@M-^] mode with - confirmation required before slave connections are accepted. - Refer to the description of ControlMaster in ssh_config(5) for - details. - - -m mac_spec - Additionally, for protocol version 2 a comma-separated list of - MAC (message authentication code) algorithms can be specified in - order of preference. See the MACs keyword for more information. - - -N Do not execute a remote command. This is useful for just - forwarding ports (protocol version 2 only). - - -n Redirects stdin from /dev/null (actually, prevents reading from - stdin). This must be used when ssh is run in the background. A - common trick is to use this to run X11 programs on a remote - machine. For example, ssh -n shadows.cs.hut.fi emacs & will - start an emacs on shadows.cs.hut.fi, and the X11 connection will - be automatically forwarded over an encrypted channel. The ssh - program will be put in the background. (This does not work if - ssh needs to ask for a password or passphrase; see also the -f - option.) - - -O ctl_cmd - Control an active connection multiplexing master process. When - the -O option is specified, the ctl_cmd argument is interpreted - and passed to the master process. Valid commands are: M-bM-^@M-^\checkM-bM-^@M-^] - (check that the master process is running), M-bM-^@M-^\forwardM-bM-^@M-^] (request - forwardings without command execution), M-bM-^@M-^\cancelM-bM-^@M-^] (cancel - forwardings), M-bM-^@M-^\exitM-bM-^@M-^] (request the master to exit), and M-bM-^@M-^\stopM-bM-^@M-^] - (request the master to stop accepting further multiplexing - requests). - - -o option - Can be used to give options in the format used in the - configuration file. This is useful for specifying options for - which there is no separate command-line flag. For full details - of the options listed below, and their possible values, see - ssh_config(5). - - AddressFamily - BatchMode - BindAddress - CanonicalDomains - CanonicalizeFallbackLocal - CanonicalizeHostname - CanonicalizeMaxDots - CanonicalizePermittedCNAMEs - ChallengeResponseAuthentication - CheckHostIP - Cipher - Ciphers - ClearAllForwardings - Compression - CompressionLevel - ConnectionAttempts - ConnectTimeout - ControlMaster - ControlPath - ControlPersist - DynamicForward - EscapeChar - ExitOnForwardFailure - FingerprintHash - ForwardAgent - ForwardX11 - ForwardX11Timeout - ForwardX11Trusted - GatewayPorts - GlobalKnownHostsFile - GSSAPIAuthentication - GSSAPIDelegateCredentials - HashKnownHosts - Host - HostbasedAuthentication - HostbasedKeyTypes - HostKeyAlgorithms - HostKeyAlias - HostName - IdentityFile - IdentitiesOnly - IPQoS - KbdInteractiveAuthentication - KbdInteractiveDevices - KexAlgorithms - LocalCommand - LocalForward - LogLevel - MACs - Match - NoHostAuthenticationForLocalhost - NumberOfPasswordPrompts - PasswordAuthentication - PermitLocalCommand - PKCS11Provider - Port - PreferredAuthentications - Protocol - ProxyCommand - ProxyUseFdpass - PubkeyAcceptedKeyTypes - PubkeyAuthentication - RekeyLimit - RemoteForward - RequestTTY - RhostsRSAAuthentication - RSAAuthentication - SendEnv - ServerAliveInterval - ServerAliveCountMax - StreamLocalBindMask - StreamLocalBindUnlink - StrictHostKeyChecking - TCPKeepAlive - Tunnel - TunnelDevice - UpdateHostKeys - UsePrivilegedPort - User - UserKnownHostsFile - VerifyHostKeyDNS - VisualHostKey - XAuthLocation - - -p port - Port to connect to on the remote host. This can be specified on - a per-host basis in the configuration file. - - -Q cipher | cipher-auth | mac | kex | key | protocol-version - Queries ssh for the algorithms supported for the specified - version 2. The available features are: cipher (supported - symmetric ciphers), cipher-auth (supported symmetric ciphers that - support authenticated encryption), mac (supported message - integrity codes), kex (key exchange algorithms), key (key types) - and protocol-version (supported SSH protocol versions). - - -q Quiet mode. Causes most warning and diagnostic messages to be - suppressed. - - -R [bind_address:]port:host:hostport - -R [bind_address:]port:local_socket - -R remote_socket:host:hostport - -R remote_socket:local_socket - Specifies that connections to the given TCP port or Unix socket - on the remote (server) host are to be forwarded to the given host - and port, or Unix socket, on the local side. This works by - allocating a socket to listen to either a TCP port or to a Unix - socket on the remote side. Whenever a connection is made to this - port or Unix socket, the connection is forwarded over the secure - channel, and a connection is made to either host port hostport, - or local_socket, from the local machine. - - Port forwardings can also be specified in the configuration file. - Privileged ports can be forwarded only when logging in as root on - the remote machine. IPv6 addresses can be specified by enclosing - the address in square brackets. - - By default, TCP listening sockets on the server will be bound to - the loopback interface only. This may be overridden by - specifying a bind_address. An empty bind_address, or the address - M-bM-^@M-^X*M-bM-^@M-^Y, indicates that the remote socket should listen on all - interfaces. Specifying a remote bind_address will only succeed - if the server's GatewayPorts option is enabled (see - sshd_config(5)). - - If the port argument is M-bM-^@M-^X0M-bM-^@M-^Y, the listen port will be dynamically - allocated on the server and reported to the client at run time. - When used together with -O forward the allocated port will be - printed to the standard output. - - -S ctl_path - Specifies the location of a control socket for connection - sharing, or the string M-bM-^@M-^\noneM-bM-^@M-^] to disable connection sharing. - Refer to the description of ControlPath and ControlMaster in - ssh_config(5) for details. - - -s May be used to request invocation of a subsystem on the remote - system. Subsystems are a feature of the SSH2 protocol which - facilitate the use of SSH as a secure transport for other - applications (eg. sftp(1)). The subsystem is specified as the - remote command. - - -T Disable pseudo-terminal allocation. - - -t Force pseudo-terminal allocation. This can be used to execute - arbitrary screen-based programs on a remote machine, which can be - very useful, e.g. when implementing menu services. Multiple -t - options force tty allocation, even if ssh has no local tty. - - -V Display the version number and exit. - - -v Verbose mode. Causes ssh to print debugging messages about its - progress. This is helpful in debugging connection, - authentication, and configuration problems. Multiple -v options - increase the verbosity. The maximum is 3. - - -W host:port - Requests that standard input and output on the client be - forwarded to host on port over the secure channel. Implies -N, - -T, ExitOnForwardFailure and ClearAllForwardings. Works with - Protocol version 2 only. - - -w local_tun[:remote_tun] - Requests tunnel device forwarding with the specified tun(4) - devices between the client (local_tun) and the server - (remote_tun). - - The devices may be specified by numerical ID or the keyword - M-bM-^@M-^\anyM-bM-^@M-^], which uses the next available tunnel device. If - remote_tun is not specified, it defaults to M-bM-^@M-^\anyM-bM-^@M-^]. See also the - Tunnel and TunnelDevice directives in ssh_config(5). If the - Tunnel directive is unset, it is set to the default tunnel mode, - which is M-bM-^@M-^\point-to-pointM-bM-^@M-^]. - - -X Enables X11 forwarding. This can also be specified on a per-host - basis in a configuration file. - - X11 forwarding should be enabled with caution. Users with the - ability to bypass file permissions on the remote host (for the - user's X authorization database) can access the local X11 display - through the forwarded connection. An attacker may then be able - to perform activities such as keystroke monitoring. - - For this reason, X11 forwarding is subjected to X11 SECURITY - extension restrictions by default. Please refer to the ssh -Y - option and the ForwardX11Trusted directive in ssh_config(5) for - more information. - - -x Disables X11 forwarding. - - -Y Enables trusted X11 forwarding. Trusted X11 forwardings are not - subjected to the X11 SECURITY extension controls. - - -y Send log information using the syslog(3) system module. By - default this information is sent to stderr. - - ssh may additionally obtain configuration data from a per-user - configuration file and a system-wide configuration file. The file format - and configuration options are described in ssh_config(5). - -AUTHENTICATION - The OpenSSH SSH client supports SSH protocols 1 and 2. The default is to - use protocol 2 only, though this can be changed via the Protocol option - in ssh_config(5) or the -1 and -2 options (see above). Both protocols - support similar authentication methods, but protocol 2 is the default - since it provides additional mechanisms for confidentiality (the traffic - is encrypted using AES, 3DES, Blowfish, CAST128, or Arcfour) and - integrity (hmac-md5, hmac-sha1, hmac-sha2-256, hmac-sha2-512, umac-64, - umac-128, hmac-ripemd160). Protocol 1 lacks a strong mechanism for - ensuring the integrity of the connection. - - The methods available for authentication are: GSSAPI-based - authentication, host-based authentication, public key authentication, - challenge-response authentication, and password authentication. - Authentication methods are tried in the order specified above, though - protocol 2 has a configuration option to change the default order: - PreferredAuthentications. - - Host-based authentication works as follows: If the machine the user logs - in from is listed in /etc/hosts.equiv or /etc/shosts.equiv on the remote - machine, and the user names are the same on both sides, or if the files - ~/.rhosts or ~/.shosts exist in the user's home directory on the remote - machine and contain a line containing the name of the client machine and - the name of the user on that machine, the user is considered for login. - Additionally, the server must be able to verify the client's host key - (see the description of /etc/ssh/ssh_known_hosts and ~/.ssh/known_hosts, - below) for login to be permitted. This authentication method closes - security holes due to IP spoofing, DNS spoofing, and routing spoofing. - [Note to the administrator: /etc/hosts.equiv, ~/.rhosts, and the - rlogin/rsh protocol in general, are inherently insecure and should be - disabled if security is desired.] - - Public key authentication works as follows: The scheme is based on - public-key cryptography, using cryptosystems where encryption and - decryption are done using separate keys, and it is unfeasible to derive - the decryption key from the encryption key. The idea is that each user - creates a public/private key pair for authentication purposes. The - server knows the public key, and only the user knows the private key. - ssh implements public key authentication protocol automatically, using - one of the DSA, ECDSA, Ed25519 or RSA algorithms. Protocol 1 is - restricted to using only RSA keys, but protocol 2 may use any. The - HISTORY section of ssl(8) contains a brief discussion of the DSA and RSA - algorithms. - - The file ~/.ssh/authorized_keys lists the public keys that are permitted - for logging in. When the user logs in, the ssh program tells the server - which key pair it would like to use for authentication. The client - proves that it has access to the private key and the server checks that - the corresponding public key is authorized to accept the account. - - The user creates his/her key pair by running ssh-keygen(1). This stores - the private key in ~/.ssh/identity (protocol 1), ~/.ssh/id_dsa (protocol - 2 DSA), ~/.ssh/id_ecdsa (protocol 2 ECDSA), ~/.ssh/id_ed25519 (protocol 2 - Ed25519), or ~/.ssh/id_rsa (protocol 2 RSA) and stores the public key in - ~/.ssh/identity.pub (protocol 1), ~/.ssh/id_dsa.pub (protocol 2 DSA), - ~/.ssh/id_ecdsa.pub (protocol 2 ECDSA), ~/.ssh/id_ed25519.pub (protocol 2 - Ed25519), or ~/.ssh/id_rsa.pub (protocol 2 RSA) in the user's home - directory. The user should then copy the public key to - ~/.ssh/authorized_keys in his/her home directory on the remote machine. - The authorized_keys file corresponds to the conventional ~/.rhosts file, - and has one key per line, though the lines can be very long. After this, - the user can log in without giving the password. - - A variation on public key authentication is available in the form of - certificate authentication: instead of a set of public/private keys, - signed certificates are used. This has the advantage that a single - trusted certification authority can be used in place of many - public/private keys. See the CERTIFICATES section of ssh-keygen(1) for - more information. - - The most convenient way to use public key or certificate authentication - may be with an authentication agent. See ssh-agent(1) for more - information. - - Challenge-response authentication works as follows: The server sends an - arbitrary "challenge" text, and prompts for a response. Protocol 2 - allows multiple challenges and responses; protocol 1 is restricted to - just one challenge/response. Examples of challenge-response - authentication include BSD Authentication (see login.conf(5)) and PAM - (some non-OpenBSD systems). - - Finally, if other authentication methods fail, ssh prompts the user for a - password. The password is sent to the remote host for checking; however, - since all communications are encrypted, the password cannot be seen by - someone listening on the network. - - ssh automatically maintains and checks a database containing - identification for all hosts it has ever been used with. Host keys are - stored in ~/.ssh/known_hosts in the user's home directory. Additionally, - the file /etc/ssh/ssh_known_hosts is automatically checked for known - hosts. Any new hosts are automatically added to the user's file. If a - host's identification ever changes, ssh warns about this and disables - password authentication to prevent server spoofing or man-in-the-middle - attacks, which could otherwise be used to circumvent the encryption. The - StrictHostKeyChecking option can be used to control logins to machines - whose host key is not known or has changed. - - When the user's identity has been accepted by the server, the server - either executes the given command in a non-interactive session or, if no - command has been specified, logs into the machine and gives the user a - normal shell as an interactive session. All communication with the - remote command or shell will be automatically encrypted. - - If an interactive session is requested ssh by default will only request a - pseudo-terminal (pty) for interactive sessions when the client has one. - The flags -T and -t can be used to override this behaviour. - - If a pseudo-terminal has been allocated the user may use the escape - characters noted below. - - If no pseudo-terminal has been allocated, the session is transparent and - can be used to reliably transfer binary data. On most systems, setting - the escape character to M-bM-^@M-^\noneM-bM-^@M-^] will also make the session transparent - even if a tty is used. - - The session terminates when the command or shell on the remote machine - exits and all X11 and TCP connections have been closed. - -ESCAPE CHARACTERS - When a pseudo-terminal has been requested, ssh supports a number of - functions through the use of an escape character. - - A single tilde character can be sent as ~~ or by following the tilde by a - character other than those described below. The escape character must - always follow a newline to be interpreted as special. The escape - character can be changed in configuration files using the EscapeChar - configuration directive or on the command line by the -e option. - - The supported escapes (assuming the default M-bM-^@M-^X~M-bM-^@M-^Y) are: - - ~. Disconnect. - - ~^Z Background ssh. - - ~# List forwarded connections. - - ~& Background ssh at logout when waiting for forwarded connection / - X11 sessions to terminate. - - ~? Display a list of escape characters. - - ~B Send a BREAK to the remote system (only useful for SSH protocol - version 2 and if the peer supports it). - - ~C Open command line. Currently this allows the addition of port - forwardings using the -L, -R and -D options (see above). It also - allows the cancellation of existing port-forwardings with - -KL[bind_address:]port for local, -KR[bind_address:]port for - remote and -KD[bind_address:]port for dynamic port-forwardings. - !command allows the user to execute a local command if the - PermitLocalCommand option is enabled in ssh_config(5). Basic - help is available, using the -h option. - - ~R Request rekeying of the connection (only useful for SSH protocol - version 2 and if the peer supports it). - - ~V Decrease the verbosity (LogLevel) when errors are being written - to stderr. - - ~v Increase the verbosity (LogLevel) when errors are being written - to stderr. - -TCP FORWARDING - Forwarding of arbitrary TCP connections over the secure channel can be - specified either on the command line or in a configuration file. One - possible application of TCP forwarding is a secure connection to a mail - server; another is going through firewalls. - - In the example below, we look at encrypting communication between an IRC - client and server, even though the IRC server does not directly support - encrypted communications. This works as follows: the user connects to - the remote host using ssh, specifying a port to be used to forward - connections to the remote server. After that it is possible to start the - service which is to be encrypted on the client machine, connecting to the - same local port, and ssh will encrypt and forward the connection. - - The following example tunnels an IRC session from client machine - M-bM-^@M-^\127.0.0.1M-bM-^@M-^] (localhost) to remote server M-bM-^@M-^\server.example.comM-bM-^@M-^]: - - $ ssh -f -L 1234:localhost:6667 server.example.com sleep 10 - $ irc -c '#users' -p 1234 pinky 127.0.0.1 - - This tunnels a connection to IRC server M-bM-^@M-^\server.example.comM-bM-^@M-^], joining - channel M-bM-^@M-^\#usersM-bM-^@M-^], nickname M-bM-^@M-^\pinkyM-bM-^@M-^], using port 1234. It doesn't matter - which port is used, as long as it's greater than 1023 (remember, only - root can open sockets on privileged ports) and doesn't conflict with any - ports already in use. The connection is forwarded to port 6667 on the - remote server, since that's the standard port for IRC services. - - The -f option backgrounds ssh and the remote command M-bM-^@M-^\sleep 10M-bM-^@M-^] is - specified to allow an amount of time (10 seconds, in the example) to - start the service which is to be tunnelled. If no connections are made - within the time specified, ssh will exit. - -X11 FORWARDING - If the ForwardX11 variable is set to M-bM-^@M-^\yesM-bM-^@M-^] (or see the description of the - -X, -x, and -Y options above) and the user is using X11 (the DISPLAY - environment variable is set), the connection to the X11 display is - automatically forwarded to the remote side in such a way that any X11 - programs started from the shell (or command) will go through the - encrypted channel, and the connection to the real X server will be made - from the local machine. The user should not manually set DISPLAY. - Forwarding of X11 connections can be configured on the command line or in - configuration files. - - The DISPLAY value set by ssh will point to the server machine, but with a - display number greater than zero. This is normal, and happens because - ssh creates a M-bM-^@M-^\proxyM-bM-^@M-^] X server on the server machine for forwarding the - connections over the encrypted channel. - - ssh will also automatically set up Xauthority data on the server machine. - For this purpose, it will generate a random authorization cookie, store - it in Xauthority on the server, and verify that any forwarded connections - carry this cookie and replace it by the real cookie when the connection - is opened. The real authentication cookie is never sent to the server - machine (and no cookies are sent in the plain). - - If the ForwardAgent variable is set to M-bM-^@M-^\yesM-bM-^@M-^] (or see the description of - the -A and -a options above) and the user is using an authentication - agent, the connection to the agent is automatically forwarded to the - remote side. - -VERIFYING HOST KEYS - When connecting to a server for the first time, a fingerprint of the - server's public key is presented to the user (unless the option - StrictHostKeyChecking has been disabled). Fingerprints can be determined - using ssh-keygen(1): - - $ ssh-keygen -l -f /etc/ssh/ssh_host_rsa_key - - If the fingerprint is already known, it can be matched and the key can be - accepted or rejected. If only legacy (MD5) fingerprints for the server - are available, the ssh-keygen(1) -E option may be used to downgrade the - fingerprint algorithm to match. - - Because of the difficulty of comparing host keys just by looking at - fingerprint strings, there is also support to compare host keys visually, - using random art. By setting the VisualHostKey option to M-bM-^@M-^\yesM-bM-^@M-^], a small - ASCII graphic gets displayed on every login to a server, no matter if the - session itself is interactive or not. By learning the pattern a known - server produces, a user can easily find out that the host key has changed - when a completely different pattern is displayed. Because these patterns - are not unambiguous however, a pattern that looks similar to the pattern - remembered only gives a good probability that the host key is the same, - not guaranteed proof. - - To get a listing of the fingerprints along with their random art for all - known hosts, the following command line can be used: - - $ ssh-keygen -lv -f ~/.ssh/known_hosts - - If the fingerprint is unknown, an alternative method of verification is - available: SSH fingerprints verified by DNS. An additional resource - record (RR), SSHFP, is added to a zonefile and the connecting client is - able to match the fingerprint with that of the key presented. - - In this example, we are connecting a client to a server, - M-bM-^@M-^\host.example.comM-bM-^@M-^]. The SSHFP resource records should first be added to - the zonefile for host.example.com: - - $ ssh-keygen -r host.example.com. - - The output lines will have to be added to the zonefile. To check that - the zone is answering fingerprint queries: - - $ dig -t SSHFP host.example.com - - Finally the client connects: - - $ ssh -o "VerifyHostKeyDNS ask" host.example.com - [...] - Matching host key fingerprint found in DNS. - Are you sure you want to continue connecting (yes/no)? - - See the VerifyHostKeyDNS option in ssh_config(5) for more information. - -SSH-BASED VIRTUAL PRIVATE NETWORKS - ssh contains support for Virtual Private Network (VPN) tunnelling using - the tun(4) network pseudo-device, allowing two networks to be joined - securely. The sshd_config(5) configuration option PermitTunnel controls - whether the server supports this, and at what level (layer 2 or 3 - traffic). - - The following example would connect client network 10.0.50.0/24 with - remote network 10.0.99.0/24 using a point-to-point connection from - 10.1.1.1 to 10.1.1.2, provided that the SSH server running on the gateway - to the remote network, at 192.168.1.15, allows it. - - On the client: - - # ssh -f -w 0:1 192.168.1.15 true - # ifconfig tun0 10.1.1.1 10.1.1.2 netmask 255.255.255.252 - # route add 10.0.99.0/24 10.1.1.2 - - On the server: - - # ifconfig tun1 10.1.1.2 10.1.1.1 netmask 255.255.255.252 - # route add 10.0.50.0/24 10.1.1.1 - - Client access may be more finely tuned via the /root/.ssh/authorized_keys - file (see below) and the PermitRootLogin server option. The following - entry would permit connections on tun(4) device 1 from user M-bM-^@M-^\janeM-bM-^@M-^] and on - tun device 2 from user M-bM-^@M-^\johnM-bM-^@M-^], if PermitRootLogin is set to - M-bM-^@M-^\forced-commands-onlyM-bM-^@M-^]: - - tunnel="1",command="sh /etc/netstart tun1" ssh-rsa ... jane - tunnel="2",command="sh /etc/netstart tun2" ssh-rsa ... john - - Since an SSH-based setup entails a fair amount of overhead, it may be - more suited to temporary setups, such as for wireless VPNs. More - permanent VPNs are better provided by tools such as ipsecctl(8) and - isakmpd(8). - -ENVIRONMENT - ssh will normally set the following environment variables: - - DISPLAY The DISPLAY variable indicates the location of the - X11 server. It is automatically set by ssh to - point to a value of the form M-bM-^@M-^\hostname:nM-bM-^@M-^], where - M-bM-^@M-^\hostnameM-bM-^@M-^] indicates the host where the shell runs, - and M-bM-^@M-^XnM-bM-^@M-^Y is an integer M-bM-^IM-% 1. ssh uses this special - value to forward X11 connections over the secure - channel. The user should normally not set DISPLAY - explicitly, as that will render the X11 connection - insecure (and will require the user to manually - copy any required authorization cookies). - - HOME Set to the path of the user's home directory. - - LOGNAME Synonym for USER; set for compatibility with - systems that use this variable. - - MAIL Set to the path of the user's mailbox. - - PATH Set to the default PATH, as specified when - compiling ssh. - - SSH_ASKPASS If ssh needs a passphrase, it will read the - passphrase from the current terminal if it was run - from a terminal. If ssh does not have a terminal - associated with it but DISPLAY and SSH_ASKPASS are - set, it will execute the program specified by - SSH_ASKPASS and open an X11 window to read the - passphrase. This is particularly useful when - calling ssh from a .xsession or related script. - (Note that on some machines it may be necessary to - redirect the input from /dev/null to make this - work.) - - SSH_AUTH_SOCK Identifies the path of a UNIX-domain socket used to - communicate with the agent. - - SSH_CONNECTION Identifies the client and server ends of the - connection. The variable contains four space- - separated values: client IP address, client port - number, server IP address, and server port number. - - SSH_ORIGINAL_COMMAND This variable contains the original command line if - a forced command is executed. It can be used to - extract the original arguments. - - SSH_TTY This is set to the name of the tty (path to the - device) associated with the current shell or - command. If the current session has no tty, this - variable is not set. - - TZ This variable is set to indicate the present time - zone if it was set when the daemon was started - (i.e. the daemon passes the value on to new - connections). - - USER Set to the name of the user logging in. - - Additionally, ssh reads ~/.ssh/environment, and adds lines of the format - M-bM-^@M-^\VARNAME=valueM-bM-^@M-^] to the environment if the file exists and users are - allowed to change their environment. For more information, see the - PermitUserEnvironment option in sshd_config(5). - -FILES - ~/.rhosts - This file is used for host-based authentication (see above). On - some machines this file may need to be world-readable if the - user's home directory is on an NFS partition, because sshd(8) - reads it as root. Additionally, this file must be owned by the - user, and must not have write permissions for anyone else. The - recommended permission for most machines is read/write for the - user, and not accessible by others. - - ~/.shosts - This file is used in exactly the same way as .rhosts, but allows - host-based authentication without permitting login with - rlogin/rsh. - - ~/.ssh/ - This directory is the default location for all user-specific - configuration and authentication information. There is no - general requirement to keep the entire contents of this directory - secret, but the recommended permissions are read/write/execute - for the user, and not accessible by others. - - ~/.ssh/authorized_keys - Lists the public keys (DSA, ECDSA, Ed25519, RSA) that can be used - for logging in as this user. The format of this file is - described in the sshd(8) manual page. This file is not highly - sensitive, but the recommended permissions are read/write for the - user, and not accessible by others. - - ~/.ssh/config - This is the per-user configuration file. The file format and - configuration options are described in ssh_config(5). Because of - the potential for abuse, this file must have strict permissions: - read/write for the user, and not writable by others. - - ~/.ssh/environment - Contains additional definitions for environment variables; see - ENVIRONMENT, above. - - ~/.ssh/identity - ~/.ssh/id_dsa - ~/.ssh/id_ecdsa - ~/.ssh/id_ed25519 - ~/.ssh/id_rsa - Contains the private key for authentication. These files contain - sensitive data and should be readable by the user but not - accessible by others (read/write/execute). ssh will simply - ignore a private key file if it is accessible by others. It is - possible to specify a passphrase when generating the key which - will be used to encrypt the sensitive part of this file using - 3DES. - - ~/.ssh/identity.pub - ~/.ssh/id_dsa.pub - ~/.ssh/id_ecdsa.pub - ~/.ssh/id_ed25519.pub - ~/.ssh/id_rsa.pub - Contains the public key for authentication. These files are not - sensitive and can (but need not) be readable by anyone. - - ~/.ssh/known_hosts - Contains a list of host keys for all hosts the user has logged - into that are not already in the systemwide list of known host - keys. See sshd(8) for further details of the format of this - file. - - ~/.ssh/rc - Commands in this file are executed by ssh when the user logs in, - just before the user's shell (or command) is started. See the - sshd(8) manual page for more information. - - /etc/hosts.equiv - This file is for host-based authentication (see above). It - should only be writable by root. - - /etc/shosts.equiv - This file is used in exactly the same way as hosts.equiv, but - allows host-based authentication without permitting login with - rlogin/rsh. - - /etc/ssh/ssh_config - Systemwide configuration file. The file format and configuration - options are described in ssh_config(5). - - /etc/ssh/ssh_host_key - /etc/ssh/ssh_host_dsa_key - /etc/ssh/ssh_host_ecdsa_key - /etc/ssh/ssh_host_ed25519_key - /etc/ssh/ssh_host_rsa_key - These files contain the private parts of the host keys and are - used for host-based authentication. If protocol version 1 is - used, ssh must be setuid root, since the host key is readable - only by root. For protocol version 2, ssh uses ssh-keysign(8) to - access the host keys, eliminating the requirement that ssh be - setuid root when host-based authentication is used. By default - ssh is not setuid root. - - /etc/ssh/ssh_known_hosts - Systemwide list of known host keys. This file should be prepared - by the system administrator to contain the public host keys of - all machines in the organization. It should be world-readable. - See sshd(8) for further details of the format of this file. - - /etc/ssh/sshrc - Commands in this file are executed by ssh when the user logs in, - just before the user's shell (or command) is started. See the - sshd(8) manual page for more information. - -EXIT STATUS - ssh exits with the exit status of the remote command or with 255 if an - error occurred. - -SEE ALSO - scp(1), sftp(1), ssh-add(1), ssh-agent(1), ssh-keygen(1), ssh-keyscan(1), - tun(4), ssh_config(5), ssh-keysign(8), sshd(8) - -STANDARDS - S. Lehtinen and C. Lonvick, The Secure Shell (SSH) Protocol Assigned - Numbers, RFC 4250, January 2006. - - T. Ylonen and C. Lonvick, The Secure Shell (SSH) Protocol Architecture, - RFC 4251, January 2006. - - T. Ylonen and C. Lonvick, The Secure Shell (SSH) Authentication Protocol, - RFC 4252, January 2006. - - T. Ylonen and C. Lonvick, The Secure Shell (SSH) Transport Layer - Protocol, RFC 4253, January 2006. - - T. Ylonen and C. Lonvick, The Secure Shell (SSH) Connection Protocol, RFC - 4254, January 2006. - - J. Schlyter and W. Griffin, Using DNS to Securely Publish Secure Shell - (SSH) Key Fingerprints, RFC 4255, January 2006. - - F. Cusack and M. Forssen, Generic Message Exchange Authentication for the - Secure Shell Protocol (SSH), RFC 4256, January 2006. - - J. Galbraith and P. Remaker, The Secure Shell (SSH) Session Channel Break - Extension, RFC 4335, January 2006. - - M. Bellare, T. Kohno, and C. Namprempre, The Secure Shell (SSH) Transport - Layer Encryption Modes, RFC 4344, January 2006. - - B. Harris, Improved Arcfour Modes for the Secure Shell (SSH) Transport - Layer Protocol, RFC 4345, January 2006. - - M. Friedl, N. Provos, and W. Simpson, Diffie-Hellman Group Exchange for - the Secure Shell (SSH) Transport Layer Protocol, RFC 4419, March 2006. - - J. Galbraith and R. Thayer, The Secure Shell (SSH) Public Key File - Format, RFC 4716, November 2006. - - D. Stebila and J. Green, Elliptic Curve Algorithm Integration in the - Secure Shell Transport Layer, RFC 5656, December 2009. - - A. Perrig and D. Song, Hash Visualization: a New Technique to improve - Real-World Security, 1999, International Workshop on Cryptographic - Techniques and E-Commerce (CrypTEC '99). - -AUTHORS - OpenSSH is a derivative of the original and free ssh 1.2.12 release by - Tatu Ylonen. Aaron Campbell, Bob Beck, Markus Friedl, Niels Provos, Theo - de Raadt and Dug Song removed many bugs, re-added newer features and - created OpenSSH. Markus Friedl contributed the support for SSH protocol - versions 1.5 and 2.0. - -OpenBSD 5.8 July 20, 2015 OpenBSD 5.8 diff --git a/crypto/openssh/ssh_config.0 b/crypto/openssh/ssh_config.0 deleted file mode 100644 index 6548077..0000000 --- a/crypto/openssh/ssh_config.0 +++ /dev/null @@ -1,1026 +0,0 @@ -SSH_CONFIG(5) File Formats Manual SSH_CONFIG(5) - -NAME - ssh_config M-bM-^@M-^S OpenSSH SSH client configuration files - -SYNOPSIS - ~/.ssh/config - /etc/ssh/ssh_config - -DESCRIPTION - ssh(1) obtains configuration data from the following sources in the - following order: - - 1. command-line options - 2. user's configuration file (~/.ssh/config) - 3. system-wide configuration file (/etc/ssh/ssh_config) - - For each parameter, the first obtained value will be used. The - configuration files contain sections separated by M-bM-^@M-^\HostM-bM-^@M-^] specifications, - and that section is only applied for hosts that match one of the patterns - given in the specification. The matched host name is usually the one - given on the command line (see the CanonicalizeHostname option for - exceptions.) - - Since the first obtained value for each parameter is used, more host- - specific declarations should be given near the beginning of the file, and - general defaults at the end. - - The configuration file has the following format: - - Empty lines and lines starting with M-bM-^@M-^X#M-bM-^@M-^Y are comments. Otherwise a line - is of the format M-bM-^@M-^\keyword argumentsM-bM-^@M-^]. Configuration options may be - separated by whitespace or optional whitespace and exactly one M-bM-^@M-^X=M-bM-^@M-^Y; the - latter format is useful to avoid the need to quote whitespace when - specifying configuration options using the ssh, scp, and sftp -o option. - Arguments may optionally be enclosed in double quotes (") in order to - represent arguments containing spaces. - - The possible keywords and their meanings are as follows (note that - keywords are case-insensitive and arguments are case-sensitive): - - Host Restricts the following declarations (up to the next Host or - Match keyword) to be only for those hosts that match one of the - patterns given after the keyword. If more than one pattern is - provided, they should be separated by whitespace. A single M-bM-^@M-^X*M-bM-^@M-^Y - as a pattern can be used to provide global defaults for all - hosts. The host is usually the hostname argument given on the - command line (see the CanonicalizeHostname option for - exceptions.) - - A pattern entry may be negated by prefixing it with an - exclamation mark (M-bM-^@M-^X!M-bM-^@M-^Y). If a negated entry is matched, then the - Host entry is ignored, regardless of whether any other patterns - on the line match. Negated matches are therefore useful to - provide exceptions for wildcard matches. - - See PATTERNS for more information on patterns. - - Match Restricts the following declarations (up to the next Host or - Match keyword) to be used only when the conditions following the - Match keyword are satisfied. Match conditions are specified - using one or more critera or the single token all which always - matches. The available criteria keywords are: canonical, exec, - host, originalhost, user, and localuser. The all criteria must - appear alone or immediately after canonical. Other criteria may - be combined arbitrarily. All criteria but all and canonical - require an argument. Criteria may be negated by prepending an - exclamation mark (M-bM-^@M-^X!M-bM-^@M-^Y). - - The canonical keyword matches only when the configuration file is - being re-parsed after hostname canonicalization (see the - CanonicalizeHostname option.) This may be useful to specify - conditions that work with canonical host names only. The exec - keyword executes the specified command under the user's shell. - If the command returns a zero exit status then the condition is - considered true. Commands containing whitespace characters must - be quoted. The following character sequences in the command will - be expanded prior to execution: M-bM-^@M-^X%LM-bM-^@M-^Y will be substituted by the - first component of the local host name, M-bM-^@M-^X%lM-bM-^@M-^Y will be substituted - by the local host name (including any domain name), M-bM-^@M-^X%hM-bM-^@M-^Y will be - substituted by the target host name, M-bM-^@M-^X%nM-bM-^@M-^Y will be substituted by - the original target host name specified on the command-line, M-bM-^@M-^X%pM-bM-^@M-^Y - the destination port, M-bM-^@M-^X%rM-bM-^@M-^Y by the remote login username, and M-bM-^@M-^X%uM-bM-^@M-^Y - by the username of the user running ssh(1). - - The other keywords' criteria must be single entries or comma- - separated lists and may use the wildcard and negation operators - described in the PATTERNS section. The criteria for the host - keyword are matched against the target hostname, after any - substitution by the Hostname or CanonicalizeHostname options. - The originalhost keyword matches against the hostname as it was - specified on the command-line. The user keyword matches against - the target username on the remote host. The localuser keyword - matches against the name of the local user running ssh(1) (this - keyword may be useful in system-wide ssh_config files). - - AddressFamily - Specifies which address family to use when connecting. Valid - arguments are M-bM-^@M-^\anyM-bM-^@M-^], M-bM-^@M-^\inetM-bM-^@M-^] (use IPv4 only), or M-bM-^@M-^\inet6M-bM-^@M-^] (use IPv6 - only). - - BatchMode - If set to M-bM-^@M-^\yesM-bM-^@M-^], passphrase/password querying will be disabled. - This option is useful in scripts and other batch jobs where no - user is present to supply the password. The argument must be - M-bM-^@M-^\yesM-bM-^@M-^] or M-bM-^@M-^\noM-bM-^@M-^]. The default is M-bM-^@M-^\noM-bM-^@M-^]. - - BindAddress - Use the specified address on the local machine as the source - address of the connection. Only useful on systems with more than - one address. Note that this option does not work if - UsePrivilegedPort is set to M-bM-^@M-^\yesM-bM-^@M-^]. - - CanonicalDomains - When CanonicalizeHostname is enabled, this option specifies the - list of domain suffixes in which to search for the specified - destination host. - - CanonicalizeFallbackLocal - Specifies whether to fail with an error when hostname - canonicalization fails. The default, M-bM-^@M-^\yesM-bM-^@M-^], will attempt to look - up the unqualified hostname using the system resolver's search - rules. A value of M-bM-^@M-^\noM-bM-^@M-^] will cause ssh(1) to fail instantly if - CanonicalizeHostname is enabled and the target hostname cannot be - found in any of the domains specified by CanonicalDomains. - - CanonicalizeHostname - Controls whether explicit hostname canonicalization is performed. - The default, M-bM-^@M-^\noM-bM-^@M-^], is not to perform any name rewriting and let - the system resolver handle all hostname lookups. If set to M-bM-^@M-^\yesM-bM-^@M-^] - then, for connections that do not use a ProxyCommand, ssh(1) will - attempt to canonicalize the hostname specified on the command - line using the CanonicalDomains suffixes and - CanonicalizePermittedCNAMEs rules. If CanonicalizeHostname is - set to M-bM-^@M-^\alwaysM-bM-^@M-^], then canonicalization is applied to proxied - connections too. - - If this option is enabled, then the configuration files are - processed again using the new target name to pick up any new - configuration in matching Host and Match stanzas. - - CanonicalizeMaxDots - Specifies the maximum number of dot characters in a hostname - before canonicalization is disabled. The default, M-bM-^@M-^\1M-bM-^@M-^], allows a - single dot (i.e. hostname.subdomain). - - CanonicalizePermittedCNAMEs - Specifies rules to determine whether CNAMEs should be followed - when canonicalizing hostnames. The rules consist of one or more - arguments of source_domain_list:target_domain_list, where - source_domain_list is a pattern-list of domains that may follow - CNAMEs in canonicalization, and target_domain_list is a pattern- - list of domains that they may resolve to. - - For example, M-bM-^@M-^\*.a.example.com:*.b.example.com,*.c.example.comM-bM-^@M-^] - will allow hostnames matching M-bM-^@M-^\*.a.example.comM-bM-^@M-^] to be - canonicalized to names in the M-bM-^@M-^\*.b.example.comM-bM-^@M-^] or - M-bM-^@M-^\*.c.example.comM-bM-^@M-^] domains. - - ChallengeResponseAuthentication - Specifies whether to use challenge-response authentication. The - argument to this keyword must be M-bM-^@M-^\yesM-bM-^@M-^] or M-bM-^@M-^\noM-bM-^@M-^]. The default is - M-bM-^@M-^\yesM-bM-^@M-^]. - - CheckHostIP - If this flag is set to M-bM-^@M-^\yesM-bM-^@M-^], ssh(1) will additionally check the - host IP address in the known_hosts file. This allows ssh to - detect if a host key changed due to DNS spoofing and will add - addresses of destination hosts to ~/.ssh/known_hosts in the - process, regardless of the setting of StrictHostKeyChecking. If - the option is set to M-bM-^@M-^\noM-bM-^@M-^], the check will not be executed. The - default is M-bM-^@M-^\yesM-bM-^@M-^]. - - Cipher Specifies the cipher to use for encrypting the session in - protocol version 1. Currently, M-bM-^@M-^\blowfishM-bM-^@M-^], M-bM-^@M-^\3desM-bM-^@M-^], and M-bM-^@M-^\desM-bM-^@M-^] are - supported. des is only supported in the ssh(1) client for - interoperability with legacy protocol 1 implementations that do - not support the 3des cipher. Its use is strongly discouraged due - to cryptographic weaknesses. The default is M-bM-^@M-^\3desM-bM-^@M-^]. - - Ciphers - Specifies the ciphers allowed for protocol version 2 in order of - preference. Multiple ciphers must be comma-separated. If the - specified value begins with a M-bM-^@M-^X+M-bM-^@M-^Y character, then the specified - ciphers will be appended to the default set instead of replacing - them. - - The supported ciphers are: - - 3des-cbc - aes128-cbc - aes192-cbc - aes256-cbc - aes128-ctr - aes192-ctr - aes256-ctr - aes128-gcm@openssh.com - aes256-gcm@openssh.com - arcfour - arcfour128 - arcfour256 - blowfish-cbc - cast128-cbc - chacha20-poly1305@openssh.com - - The default is: - - aes128-ctr,aes192-ctr,aes256-ctr, - aes128-gcm@openssh.com,aes256-gcm@openssh.com, - chacha20-poly1305@openssh.com, - arcfour256,arcfour128, - aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc, - aes192-cbc,aes256-cbc,arcfour - - The list of available ciphers may also be obtained using the -Q - option of ssh(1) with an argument of M-bM-^@M-^\cipherM-bM-^@M-^]. - - ClearAllForwardings - Specifies that all local, remote, and dynamic port forwardings - specified in the configuration files or on the command line be - cleared. This option is primarily useful when used from the - ssh(1) command line to clear port forwardings set in - configuration files, and is automatically set by scp(1) and - sftp(1). The argument must be M-bM-^@M-^\yesM-bM-^@M-^] or M-bM-^@M-^\noM-bM-^@M-^]. The default is - M-bM-^@M-^\noM-bM-^@M-^]. - - Compression - Specifies whether to use compression. The argument must be M-bM-^@M-^\yesM-bM-^@M-^] - or M-bM-^@M-^\noM-bM-^@M-^]. The default is M-bM-^@M-^\noM-bM-^@M-^]. - - CompressionLevel - Specifies the compression level to use if compression is enabled. - The argument must be an integer from 1 (fast) to 9 (slow, best). - The default level is 6, which is good for most applications. The - meaning of the values is the same as in gzip(1). Note that this - option applies to protocol version 1 only. - - ConnectionAttempts - Specifies the number of tries (one per second) to make before - exiting. The argument must be an integer. This may be useful in - scripts if the connection sometimes fails. The default is 1. - - ConnectTimeout - Specifies the timeout (in seconds) used when connecting to the - SSH server, instead of using the default system TCP timeout. - This value is used only when the target is down or really - unreachable, not when it refuses the connection. - - ControlMaster - Enables the sharing of multiple sessions over a single network - connection. When set to M-bM-^@M-^\yesM-bM-^@M-^], ssh(1) will listen for - connections on a control socket specified using the ControlPath - argument. Additional sessions can connect to this socket using - the same ControlPath with ControlMaster set to M-bM-^@M-^\noM-bM-^@M-^] (the - default). These sessions will try to reuse the master instance's - network connection rather than initiating new ones, but will fall - back to connecting normally if the control socket does not exist, - or is not listening. - - Setting this to M-bM-^@M-^\askM-bM-^@M-^] will cause ssh to listen for control - connections, but require confirmation using ssh-askpass(1). If - the ControlPath cannot be opened, ssh will continue without - connecting to a master instance. - - X11 and ssh-agent(1) forwarding is supported over these - multiplexed connections, however the display and agent forwarded - will be the one belonging to the master connection i.e. it is not - possible to forward multiple displays or agents. - - Two additional options allow for opportunistic multiplexing: try - to use a master connection but fall back to creating a new one if - one does not already exist. These options are: M-bM-^@M-^\autoM-bM-^@M-^] and - M-bM-^@M-^\autoaskM-bM-^@M-^]. The latter requires confirmation like the M-bM-^@M-^\askM-bM-^@M-^] - option. - - ControlPath - Specify the path to the control socket used for connection - sharing as described in the ControlMaster section above or the - string M-bM-^@M-^\noneM-bM-^@M-^] to disable connection sharing. In the path, M-bM-^@M-^X%LM-bM-^@M-^Y - will be substituted by the first component of the local host - name, M-bM-^@M-^X%lM-bM-^@M-^Y will be substituted by the local host name (including - any domain name), M-bM-^@M-^X%hM-bM-^@M-^Y will be substituted by the target host - name, M-bM-^@M-^X%nM-bM-^@M-^Y will be substituted by the original target host name - specified on the command line, M-bM-^@M-^X%pM-bM-^@M-^Y the destination port, M-bM-^@M-^X%rM-bM-^@M-^Y by - the remote login username, M-bM-^@M-^X%uM-bM-^@M-^Y by the username of the user - running ssh(1), and M-bM-^@M-^X%CM-bM-^@M-^Y by a hash of the concatenation: - %l%h%p%r. It is recommended that any ControlPath used for - opportunistic connection sharing include at least %h, %p, and %r - (or alternatively %C) and be placed in a directory that is not - writable by other users. This ensures that shared connections - are uniquely identified. - - ControlPersist - When used in conjunction with ControlMaster, specifies that the - master connection should remain open in the background (waiting - for future client connections) after the initial client - connection has been closed. If set to M-bM-^@M-^\noM-bM-^@M-^], then the master - connection will not be placed into the background, and will close - as soon as the initial client connection is closed. If set to - M-bM-^@M-^\yesM-bM-^@M-^] or M-bM-^@M-^\0M-bM-^@M-^], then the master connection will remain in the - background indefinitely (until killed or closed via a mechanism - such as the ssh(1) M-bM-^@M-^\-O exitM-bM-^@M-^] option). If set to a time in - seconds, or a time in any of the formats documented in - sshd_config(5), then the backgrounded master connection will - automatically terminate after it has remained idle (with no - client connections) for the specified time. - - DynamicForward - Specifies that a TCP port on the local machine be forwarded over - the secure channel, and the application protocol is then used to - determine where to connect to from the remote machine. - - The argument must be [bind_address:]port. IPv6 addresses can be - specified by enclosing addresses in square brackets. By default, - the local port is bound in accordance with the GatewayPorts - setting. However, an explicit bind_address may be used to bind - the connection to a specific address. The bind_address of - M-bM-^@M-^\localhostM-bM-^@M-^] indicates that the listening port be bound for local - use only, while an empty address or M-bM-^@M-^X*M-bM-^@M-^Y indicates that the port - should be available from all interfaces. - - Currently the SOCKS4 and SOCKS5 protocols are supported, and - ssh(1) will act as a SOCKS server. Multiple forwardings may be - specified, and additional forwardings can be given on the command - line. Only the superuser can forward privileged ports. - - EnableSSHKeysign - Setting this option to M-bM-^@M-^\yesM-bM-^@M-^] in the global client configuration - file /etc/ssh/ssh_config enables the use of the helper program - ssh-keysign(8) during HostbasedAuthentication. The argument must - be M-bM-^@M-^\yesM-bM-^@M-^] or M-bM-^@M-^\noM-bM-^@M-^]. The default is M-bM-^@M-^\noM-bM-^@M-^]. This option should be - placed in the non-hostspecific section. See ssh-keysign(8) for - more information. - - EscapeChar - Sets the escape character (default: M-bM-^@M-^X~M-bM-^@M-^Y). The escape character - can also be set on the command line. The argument should be a - single character, M-bM-^@M-^X^M-bM-^@M-^Y followed by a letter, or M-bM-^@M-^\noneM-bM-^@M-^] to disable - the escape character entirely (making the connection transparent - for binary data). - - ExitOnForwardFailure - Specifies whether ssh(1) should terminate the connection if it - cannot set up all requested dynamic, tunnel, local, and remote - port forwardings. The argument must be M-bM-^@M-^\yesM-bM-^@M-^] or M-bM-^@M-^\noM-bM-^@M-^]. The - default is M-bM-^@M-^\noM-bM-^@M-^]. - - FingerprintHash - Specifies the hash algorithm used when displaying key - fingerprints. Valid options are: M-bM-^@M-^\md5M-bM-^@M-^] and M-bM-^@M-^\sha256M-bM-^@M-^]. The - default is M-bM-^@M-^\sha256M-bM-^@M-^]. - - ForwardAgent - Specifies whether the connection to the authentication agent (if - any) will be forwarded to the remote machine. The argument must - be M-bM-^@M-^\yesM-bM-^@M-^] or M-bM-^@M-^\noM-bM-^@M-^]. The default is M-bM-^@M-^\noM-bM-^@M-^]. - - Agent forwarding should be enabled with caution. Users with the - ability to bypass file permissions on the remote host (for the - agent's Unix-domain socket) can access the local agent through - the forwarded connection. An attacker cannot obtain key material - from the agent, however they can perform operations on the keys - that enable them to authenticate using the identities loaded into - the agent. - - ForwardX11 - Specifies whether X11 connections will be automatically - redirected over the secure channel and DISPLAY set. The argument - must be M-bM-^@M-^\yesM-bM-^@M-^] or M-bM-^@M-^\noM-bM-^@M-^]. The default is M-bM-^@M-^\noM-bM-^@M-^]. - - X11 forwarding should be enabled with caution. Users with the - ability to bypass file permissions on the remote host (for the - user's X11 authorization database) can access the local X11 - display through the forwarded connection. An attacker may then - be able to perform activities such as keystroke monitoring if the - ForwardX11Trusted option is also enabled. - - ForwardX11Timeout - Specify a timeout for untrusted X11 forwarding using the format - described in the TIME FORMATS section of sshd_config(5). X11 - connections received by ssh(1) after this time will be refused. - The default is to disable untrusted X11 forwarding after twenty - minutes has elapsed. - - ForwardX11Trusted - If this option is set to M-bM-^@M-^\yesM-bM-^@M-^], remote X11 clients will have full - access to the original X11 display. - - If this option is set to M-bM-^@M-^\noM-bM-^@M-^], remote X11 clients will be - considered untrusted and prevented from stealing or tampering - with data belonging to trusted X11 clients. Furthermore, the - xauth(1) token used for the session will be set to expire after - 20 minutes. Remote clients will be refused access after this - time. - - The default is M-bM-^@M-^\noM-bM-^@M-^]. - - See the X11 SECURITY extension specification for full details on - the restrictions imposed on untrusted clients. - - GatewayPorts - Specifies whether remote hosts are allowed to connect to local - forwarded ports. By default, ssh(1) binds local port forwardings - to the loopback address. This prevents other remote hosts from - connecting to forwarded ports. GatewayPorts can be used to - specify that ssh should bind local port forwardings to the - wildcard address, thus allowing remote hosts to connect to - forwarded ports. The argument must be M-bM-^@M-^\yesM-bM-^@M-^] or M-bM-^@M-^\noM-bM-^@M-^]. The - default is M-bM-^@M-^\noM-bM-^@M-^]. - - GlobalKnownHostsFile - Specifies one or more files to use for the global host key - database, separated by whitespace. The default is - /etc/ssh/ssh_known_hosts, /etc/ssh/ssh_known_hosts2. - - GSSAPIAuthentication - Specifies whether user authentication based on GSSAPI is allowed. - The default is M-bM-^@M-^\noM-bM-^@M-^]. Note that this option applies to protocol - version 2 only. - - GSSAPIDelegateCredentials - Forward (delegate) credentials to the server. The default is - M-bM-^@M-^\noM-bM-^@M-^]. Note that this option applies to protocol version 2 only. - - HashKnownHosts - Indicates that ssh(1) should hash host names and addresses when - they are added to ~/.ssh/known_hosts. These hashed names may be - used normally by ssh(1) and sshd(8), but they do not reveal - identifying information should the file's contents be disclosed. - The default is M-bM-^@M-^\noM-bM-^@M-^]. Note that existing names and addresses in - known hosts files will not be converted automatically, but may be - manually hashed using ssh-keygen(1). - - HostbasedAuthentication - Specifies whether to try rhosts based authentication with public - key authentication. The argument must be M-bM-^@M-^\yesM-bM-^@M-^] or M-bM-^@M-^\noM-bM-^@M-^]. The - default is M-bM-^@M-^\noM-bM-^@M-^]. This option applies to protocol version 2 only - and is similar to RhostsRSAAuthentication. - - HostbasedKeyTypes - Specifies the key types that will be used for hostbased - authentication as a comma-separated pattern list. Alternately if - the specified value begins with a M-bM-^@M-^X+M-bM-^@M-^Y character, then the - specified key types will be appended to the default set instead - of replacing them. The default for this option is: - - ecdsa-sha2-nistp256-cert-v01@openssh.com, - ecdsa-sha2-nistp384-cert-v01@openssh.com, - ecdsa-sha2-nistp521-cert-v01@openssh.com, - ssh-ed25519-cert-v01@openssh.com, - ssh-rsa-cert-v01@openssh.com, - ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521, - ssh-ed25519,ssh-rsa - - The -Q option of ssh(1) may be used to list supported key types. - - HostKeyAlgorithms - Specifies the protocol version 2 host key algorithms that the - client wants to use in order of preference. Alternately if the - specified value begins with a M-bM-^@M-^X+M-bM-^@M-^Y character, then the specified - key types will be appended to the default set instead of - replacing them. The default for this option is: - - ecdsa-sha2-nistp256-cert-v01@openssh.com, - ecdsa-sha2-nistp384-cert-v01@openssh.com, - ecdsa-sha2-nistp521-cert-v01@openssh.com, - ssh-ed25519-cert-v01@openssh.com, - ssh-rsa-cert-v01@openssh.com, - ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521, - ssh-ed25519,ssh-rsa - - If hostkeys are known for the destination host then this default - is modified to prefer their algorithms. - - The list of available key types may also be obtained using the -Q - option of ssh(1) with an argument of M-bM-^@M-^\keyM-bM-^@M-^]. - - HostKeyAlias - Specifies an alias that should be used instead of the real host - name when looking up or saving the host key in the host key - database files. This option is useful for tunneling SSH - connections or for multiple servers running on a single host. - - HostName - Specifies the real host name to log into. This can be used to - specify nicknames or abbreviations for hosts. If the hostname - contains the character sequence M-bM-^@M-^X%hM-bM-^@M-^Y, then this will be replaced - with the host name specified on the command line (this is useful - for manipulating unqualified names). The character sequence M-bM-^@M-^X%%M-bM-^@M-^Y - will be replaced by a single M-bM-^@M-^X%M-bM-^@M-^Y character, which may be used - when specifying IPv6 link-local addresses. - - The default is the name given on the command line. Numeric IP - addresses are also permitted (both on the command line and in - HostName specifications). - - IdentitiesOnly - Specifies that ssh(1) should only use the authentication identity - files configured in the ssh_config files, even if ssh-agent(1) or - a PKCS11Provider offers more identities. The argument to this - keyword must be M-bM-^@M-^\yesM-bM-^@M-^] or M-bM-^@M-^\noM-bM-^@M-^]. This option is intended for - situations where ssh-agent offers many different identities. The - default is M-bM-^@M-^\noM-bM-^@M-^]. - - IdentityFile - Specifies a file from which the user's DSA, ECDSA, Ed25519 or RSA - authentication identity is read. The default is ~/.ssh/identity - for protocol version 1, and ~/.ssh/id_dsa, ~/.ssh/id_ecdsa, - ~/.ssh/id_ed25519 and ~/.ssh/id_rsa for protocol version 2. - Additionally, any identities represented by the authentication - agent will be used for authentication unless IdentitiesOnly is - set. ssh(1) will try to load certificate information from the - filename obtained by appending -cert.pub to the path of a - specified IdentityFile. - - The file name may use the tilde syntax to refer to a user's home - directory or one of the following escape characters: M-bM-^@M-^X%dM-bM-^@M-^Y (local - user's home directory), M-bM-^@M-^X%uM-bM-^@M-^Y (local user name), M-bM-^@M-^X%lM-bM-^@M-^Y (local host - name), M-bM-^@M-^X%hM-bM-^@M-^Y (remote host name) or M-bM-^@M-^X%rM-bM-^@M-^Y (remote user name). - - It is possible to have multiple identity files specified in - configuration files; all these identities will be tried in - sequence. Multiple IdentityFile directives will add to the list - of identities tried (this behaviour differs from that of other - configuration directives). - - IdentityFile may be used in conjunction with IdentitiesOnly to - select which identities in an agent are offered during - authentication. - - IgnoreUnknown - Specifies a pattern-list of unknown options to be ignored if they - are encountered in configuration parsing. This may be used to - suppress errors if ssh_config contains options that are - unrecognised by ssh(1). It is recommended that IgnoreUnknown be - listed early in the configuration file as it will not be applied - to unknown options that appear before it. - - IPQoS Specifies the IPv4 type-of-service or DSCP class for connections. - Accepted values are M-bM-^@M-^\af11M-bM-^@M-^], M-bM-^@M-^\af12M-bM-^@M-^], M-bM-^@M-^\af13M-bM-^@M-^], M-bM-^@M-^\af21M-bM-^@M-^], M-bM-^@M-^\af22M-bM-^@M-^], - M-bM-^@M-^\af23M-bM-^@M-^], M-bM-^@M-^\af31M-bM-^@M-^], M-bM-^@M-^\af32M-bM-^@M-^], M-bM-^@M-^\af33M-bM-^@M-^], M-bM-^@M-^\af41M-bM-^@M-^], M-bM-^@M-^\af42M-bM-^@M-^], M-bM-^@M-^\af43M-bM-^@M-^], M-bM-^@M-^\cs0M-bM-^@M-^], - M-bM-^@M-^\cs1M-bM-^@M-^], M-bM-^@M-^\cs2M-bM-^@M-^], M-bM-^@M-^\cs3M-bM-^@M-^], M-bM-^@M-^\cs4M-bM-^@M-^], M-bM-^@M-^\cs5M-bM-^@M-^], M-bM-^@M-^\cs6M-bM-^@M-^], M-bM-^@M-^\cs7M-bM-^@M-^], M-bM-^@M-^\efM-bM-^@M-^], - M-bM-^@M-^\lowdelayM-bM-^@M-^], M-bM-^@M-^\throughputM-bM-^@M-^], M-bM-^@M-^\reliabilityM-bM-^@M-^], or a numeric value. - This option may take one or two arguments, separated by - whitespace. If one argument is specified, it is used as the - packet class unconditionally. If two values are specified, the - first is automatically selected for interactive sessions and the - second for non-interactive sessions. The default is M-bM-^@M-^\lowdelayM-bM-^@M-^] - for interactive sessions and M-bM-^@M-^\throughputM-bM-^@M-^] for non-interactive - sessions. - - KbdInteractiveAuthentication - Specifies whether to use keyboard-interactive authentication. - The argument to this keyword must be M-bM-^@M-^\yesM-bM-^@M-^] or M-bM-^@M-^\noM-bM-^@M-^]. The default - is M-bM-^@M-^\yesM-bM-^@M-^]. - - KbdInteractiveDevices - Specifies the list of methods to use in keyboard-interactive - authentication. Multiple method names must be comma-separated. - The default is to use the server specified list. The methods - available vary depending on what the server supports. For an - OpenSSH server, it may be zero or more of: M-bM-^@M-^\bsdauthM-bM-^@M-^], M-bM-^@M-^\pamM-bM-^@M-^], and - M-bM-^@M-^\skeyM-bM-^@M-^]. - - KexAlgorithms - Specifies the available KEX (Key Exchange) algorithms. Multiple - algorithms must be comma-separated. Alternately if the specified - value begins with a M-bM-^@M-^X+M-bM-^@M-^Y character, then the specified methods - will be appended to the default set instead of replacing them. - The default is: - - curve25519-sha256@libssh.org, - ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521, - diffie-hellman-group-exchange-sha256, - diffie-hellman-group-exchange-sha1, - diffie-hellman-group14-sha1 - - The list of available key exchange algorithms may also be - obtained using the -Q option of ssh(1) with an argument of M-bM-^@M-^\kexM-bM-^@M-^]. - - LocalCommand - Specifies a command to execute on the local machine after - successfully connecting to the server. The command string - extends to the end of the line, and is executed with the user's - shell. The following escape character substitutions will be - performed: M-bM-^@M-^X%dM-bM-^@M-^Y (local user's home directory), M-bM-^@M-^X%hM-bM-^@M-^Y (remote host - name), M-bM-^@M-^X%lM-bM-^@M-^Y (local host name), M-bM-^@M-^X%nM-bM-^@M-^Y (host name as provided on the - command line), M-bM-^@M-^X%pM-bM-^@M-^Y (remote port), M-bM-^@M-^X%rM-bM-^@M-^Y (remote user name) or - M-bM-^@M-^X%uM-bM-^@M-^Y (local user name) or M-bM-^@M-^X%CM-bM-^@M-^Y by a hash of the concatenation: - %l%h%p%r. - - The command is run synchronously and does not have access to the - session of the ssh(1) that spawned it. It should not be used for - interactive commands. - - This directive is ignored unless PermitLocalCommand has been - enabled. - - LocalForward - Specifies that a TCP port on the local machine be forwarded over - the secure channel to the specified host and port from the remote - machine. The first argument must be [bind_address:]port and the - second argument must be host:hostport. IPv6 addresses can be - specified by enclosing addresses in square brackets. Multiple - forwardings may be specified, and additional forwardings can be - given on the command line. Only the superuser can forward - privileged ports. By default, the local port is bound in - accordance with the GatewayPorts setting. However, an explicit - bind_address may be used to bind the connection to a specific - address. The bind_address of M-bM-^@M-^\localhostM-bM-^@M-^] indicates that the - listening port be bound for local use only, while an empty - address or M-bM-^@M-^X*M-bM-^@M-^Y indicates that the port should be available from - all interfaces. - - LogLevel - Gives the verbosity level that is used when logging messages from - ssh(1). The possible values are: QUIET, FATAL, ERROR, INFO, - VERBOSE, DEBUG, DEBUG1, DEBUG2, and DEBUG3. The default is INFO. - DEBUG and DEBUG1 are equivalent. DEBUG2 and DEBUG3 each specify - higher levels of verbose output. - - MACs Specifies the MAC (message authentication code) algorithms in - order of preference. The MAC algorithm is used in protocol - version 2 for data integrity protection. Multiple algorithms - must be comma-separated. If the specified value begins with a - M-bM-^@M-^X+M-bM-^@M-^Y character, then the specified algorithms will be appended to - the default set instead of replacing them. - - The algorithms that contain M-bM-^@M-^\-etmM-bM-^@M-^] calculate the MAC after - encryption (encrypt-then-mac). These are considered safer and - their use recommended. - - The default is: - - umac-64-etm@openssh.com,umac-128-etm@openssh.com, - hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com, - umac-64@openssh.com,umac-128@openssh.com, - hmac-sha2-256,hmac-sha2-512, - hmac-md5-etm@openssh.com,hmac-sha1-etm@openssh.com, - hmac-ripemd160-etm@openssh.com, - hmac-sha1-96-etm@openssh.com,hmac-md5-96-etm@openssh.com, - hmac-md5,hmac-sha1,hmac-ripemd160, - hmac-sha1-96,hmac-md5-96 - - The list of available MAC algorithms may also be obtained using - the -Q option of ssh(1) with an argument of M-bM-^@M-^\macM-bM-^@M-^]. - - NoHostAuthenticationForLocalhost - This option can be used if the home directory is shared across - machines. In this case localhost will refer to a different - machine on each of the machines and the user will get many - warnings about changed host keys. However, this option disables - host authentication for localhost. The argument to this keyword - must be M-bM-^@M-^\yesM-bM-^@M-^] or M-bM-^@M-^\noM-bM-^@M-^]. The default is to check the host key for - localhost. - - NumberOfPasswordPrompts - Specifies the number of password prompts before giving up. The - argument to this keyword must be an integer. The default is 3. - - PasswordAuthentication - Specifies whether to use password authentication. The argument - to this keyword must be M-bM-^@M-^\yesM-bM-^@M-^] or M-bM-^@M-^\noM-bM-^@M-^]. The default is M-bM-^@M-^\yesM-bM-^@M-^]. - - PermitLocalCommand - Allow local command execution via the LocalCommand option or - using the !command escape sequence in ssh(1). The argument must - be M-bM-^@M-^\yesM-bM-^@M-^] or M-bM-^@M-^\noM-bM-^@M-^]. The default is M-bM-^@M-^\noM-bM-^@M-^]. - - PKCS11Provider - Specifies which PKCS#11 provider to use. The argument to this - keyword is the PKCS#11 shared library ssh(1) should use to - communicate with a PKCS#11 token providing the user's private RSA - key. - - Port Specifies the port number to connect on the remote host. The - default is 22. - - PreferredAuthentications - Specifies the order in which the client should try protocol 2 - authentication methods. This allows a client to prefer one - method (e.g. keyboard-interactive) over another method (e.g. - password). The default is: - - gssapi-with-mic,hostbased,publickey, - keyboard-interactive,password - - Protocol - Specifies the protocol versions ssh(1) should support in order of - preference. The possible values are M-bM-^@M-^X1M-bM-^@M-^Y and M-bM-^@M-^X2M-bM-^@M-^Y. Multiple - versions must be comma-separated. When this option is set to - M-bM-^@M-^\2,1M-bM-^@M-^] ssh will try version 2 and fall back to version 1 if - version 2 is not available. The default is M-bM-^@M-^X2M-bM-^@M-^Y. - - ProxyCommand - Specifies the command to use to connect to the server. The - command string extends to the end of the line, and is executed - using the user's shell M-bM-^@M-^XexecM-bM-^@M-^Y directive to avoid a lingering - shell process. - - In the command string, any occurrence of M-bM-^@M-^X%hM-bM-^@M-^Y will be substituted - by the host name to connect, M-bM-^@M-^X%pM-bM-^@M-^Y by the port, and M-bM-^@M-^X%rM-bM-^@M-^Y by the - remote user name. The command can be basically anything, and - should read from its standard input and write to its standard - output. It should eventually connect an sshd(8) server running - on some machine, or execute sshd -i somewhere. Host key - management will be done using the HostName of the host being - connected (defaulting to the name typed by the user). Setting - the command to M-bM-^@M-^\noneM-bM-^@M-^] disables this option entirely. Note that - CheckHostIP is not available for connects with a proxy command. - - This directive is useful in conjunction with nc(1) and its proxy - support. For example, the following directive would connect via - an HTTP proxy at 192.0.2.0: - - ProxyCommand /usr/bin/nc -X connect -x 192.0.2.0:8080 %h %p - - ProxyUseFdpass - Specifies that ProxyCommand will pass a connected file descriptor - back to ssh(1) instead of continuing to execute and pass data. - The default is M-bM-^@M-^\noM-bM-^@M-^]. - - PubkeyAcceptedKeyTypes - Specifies the key types that will be used for public key - authentication as a comma-separated pattern list. Alternately if - the specified value begins with a M-bM-^@M-^X+M-bM-^@M-^Y character, then the key - types after it will be appended to the default instead of - replacing it. The default for this option is: - - ecdsa-sha2-nistp256-cert-v01@openssh.com, - ecdsa-sha2-nistp384-cert-v01@openssh.com, - ecdsa-sha2-nistp521-cert-v01@openssh.com, - ssh-ed25519-cert-v01@openssh.com, - ssh-rsa-cert-v01@openssh.com, - ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521, - ssh-ed25519,ssh-rsa - - The -Q option of ssh(1) may be used to list supported key types. - - PubkeyAuthentication - Specifies whether to try public key authentication. The argument - to this keyword must be M-bM-^@M-^\yesM-bM-^@M-^] or M-bM-^@M-^\noM-bM-^@M-^]. The default is M-bM-^@M-^\yesM-bM-^@M-^]. - This option applies to protocol version 2 only. - - RekeyLimit - Specifies the maximum amount of data that may be transmitted - before the session key is renegotiated, optionally followed a - maximum amount of time that may pass before the session key is - renegotiated. The first argument is specified in bytes and may - have a suffix of M-bM-^@M-^XKM-bM-^@M-^Y, M-bM-^@M-^XMM-bM-^@M-^Y, or M-bM-^@M-^XGM-bM-^@M-^Y to indicate Kilobytes, - Megabytes, or Gigabytes, respectively. The default is between - M-bM-^@M-^X1GM-bM-^@M-^Y and M-bM-^@M-^X4GM-bM-^@M-^Y, depending on the cipher. The optional second - value is specified in seconds and may use any of the units - documented in the TIME FORMATS section of sshd_config(5). The - default value for RekeyLimit is M-bM-^@M-^\default noneM-bM-^@M-^], which means that - rekeying is performed after the cipher's default amount of data - has been sent or received and no time based rekeying is done. - This option applies to protocol version 2 only. - - RemoteForward - Specifies that a TCP port on the remote machine be forwarded over - the secure channel to the specified host and port from the local - machine. The first argument must be [bind_address:]port and the - second argument must be host:hostport. IPv6 addresses can be - specified by enclosing addresses in square brackets. Multiple - forwardings may be specified, and additional forwardings can be - given on the command line. Privileged ports can be forwarded - only when logging in as root on the remote machine. - - If the port argument is M-bM-^@M-^X0M-bM-^@M-^Y, the listen port will be dynamically - allocated on the server and reported to the client at run time. - - If the bind_address is not specified, the default is to only bind - to loopback addresses. If the bind_address is M-bM-^@M-^X*M-bM-^@M-^Y or an empty - string, then the forwarding is requested to listen on all - interfaces. Specifying a remote bind_address will only succeed - if the server's GatewayPorts option is enabled (see - sshd_config(5)). - - RequestTTY - Specifies whether to request a pseudo-tty for the session. The - argument may be one of: M-bM-^@M-^\noM-bM-^@M-^] (never request a TTY), M-bM-^@M-^\yesM-bM-^@M-^] (always - request a TTY when standard input is a TTY), M-bM-^@M-^\forceM-bM-^@M-^] (always - request a TTY) or M-bM-^@M-^\autoM-bM-^@M-^] (request a TTY when opening a login - session). This option mirrors the -t and -T flags for ssh(1). - - RevokedHostKeys - Specifies revoked host public keys. Keys listed in this file - will be refused for host authentication. Note that if this file - does not exist or is not readable, then host authentication will - be refused for all hosts. Keys may be specified as a text file, - listing one public key per line, or as an OpenSSH Key Revocation - List (KRL) as generated by ssh-keygen(1). For more information - on KRLs, see the KEY REVOCATION LISTS section in ssh-keygen(1). - - RhostsRSAAuthentication - Specifies whether to try rhosts based authentication with RSA - host authentication. The argument must be M-bM-^@M-^\yesM-bM-^@M-^] or M-bM-^@M-^\noM-bM-^@M-^]. The - default is M-bM-^@M-^\noM-bM-^@M-^]. This option applies to protocol version 1 only - and requires ssh(1) to be setuid root. - - RSAAuthentication - Specifies whether to try RSA authentication. The argument to - this keyword must be M-bM-^@M-^\yesM-bM-^@M-^] or M-bM-^@M-^\noM-bM-^@M-^]. RSA authentication will only - be attempted if the identity file exists, or an authentication - agent is running. The default is M-bM-^@M-^\yesM-bM-^@M-^]. Note that this option - applies to protocol version 1 only. - - SendEnv - Specifies what variables from the local environ(7) should be sent - to the server. Note that environment passing is only supported - for protocol 2. The server must also support it, and the server - must be configured to accept these environment variables. Note - that the TERM environment variable is always sent whenever a - pseudo-terminal is requested as it is required by the protocol. - Refer to AcceptEnv in sshd_config(5) for how to configure the - server. Variables are specified by name, which may contain - wildcard characters. Multiple environment variables may be - separated by whitespace or spread across multiple SendEnv - directives. The default is not to send any environment - variables. - - See PATTERNS for more information on patterns. - - ServerAliveCountMax - Sets the number of server alive messages (see below) which may be - sent without ssh(1) receiving any messages back from the server. - If this threshold is reached while server alive messages are - being sent, ssh will disconnect from the server, terminating the - session. It is important to note that the use of server alive - messages is very different from TCPKeepAlive (below). The server - alive messages are sent through the encrypted channel and - therefore will not be spoofable. The TCP keepalive option - enabled by TCPKeepAlive is spoofable. The server alive mechanism - is valuable when the client or server depend on knowing when a - connection has become inactive. - - The default value is 3. If, for example, ServerAliveInterval - (see below) is set to 15 and ServerAliveCountMax is left at the - default, if the server becomes unresponsive, ssh will disconnect - after approximately 45 seconds. This option applies to protocol - version 2 only. - - ServerAliveInterval - Sets a timeout interval in seconds after which if no data has - been received from the server, ssh(1) will send a message through - the encrypted channel to request a response from the server. The - default is 0, indicating that these messages will not be sent to - the server. This option applies to protocol version 2 only. - - StreamLocalBindMask - Sets the octal file creation mode mask (umask) used when creating - a Unix-domain socket file for local or remote port forwarding. - This option is only used for port forwarding to a Unix-domain - socket file. - - The default value is 0177, which creates a Unix-domain socket - file that is readable and writable only by the owner. Note that - not all operating systems honor the file mode on Unix-domain - socket files. - - StreamLocalBindUnlink - Specifies whether to remove an existing Unix-domain socket file - for local or remote port forwarding before creating a new one. - If the socket file already exists and StreamLocalBindUnlink is - not enabled, ssh will be unable to forward the port to the Unix- - domain socket file. This option is only used for port forwarding - to a Unix-domain socket file. - - The argument must be M-bM-^@M-^\yesM-bM-^@M-^] or M-bM-^@M-^\noM-bM-^@M-^]. The default is M-bM-^@M-^\noM-bM-^@M-^]. - - StrictHostKeyChecking - If this flag is set to M-bM-^@M-^\yesM-bM-^@M-^], ssh(1) will never automatically add - host keys to the ~/.ssh/known_hosts file, and refuses to connect - to hosts whose host key has changed. This provides maximum - protection against trojan horse attacks, though it can be - annoying when the /etc/ssh/ssh_known_hosts file is poorly - maintained or when connections to new hosts are frequently made. - This option forces the user to manually add all new hosts. If - this flag is set to M-bM-^@M-^\noM-bM-^@M-^], ssh will automatically add new host - keys to the user known hosts files. If this flag is set to - M-bM-^@M-^\askM-bM-^@M-^], new host keys will be added to the user known host files - only after the user has confirmed that is what they really want - to do, and ssh will refuse to connect to hosts whose host key has - changed. The host keys of known hosts will be verified - automatically in all cases. The argument must be M-bM-^@M-^\yesM-bM-^@M-^], M-bM-^@M-^\noM-bM-^@M-^], or - M-bM-^@M-^\askM-bM-^@M-^]. The default is M-bM-^@M-^\askM-bM-^@M-^]. - - TCPKeepAlive - Specifies whether the system should send TCP keepalive messages - to the other side. If they are sent, death of the connection or - crash of one of the machines will be properly noticed. However, - this means that connections will die if the route is down - temporarily, and some people find it annoying. - - The default is M-bM-^@M-^\yesM-bM-^@M-^] (to send TCP keepalive messages), and the - client will notice if the network goes down or the remote host - dies. This is important in scripts, and many users want it too. - - To disable TCP keepalive messages, the value should be set to - M-bM-^@M-^\noM-bM-^@M-^]. - - Tunnel Request tun(4) device forwarding between the client and the - server. The argument must be M-bM-^@M-^\yesM-bM-^@M-^], M-bM-^@M-^\point-to-pointM-bM-^@M-^] (layer 3), - M-bM-^@M-^\ethernetM-bM-^@M-^] (layer 2), or M-bM-^@M-^\noM-bM-^@M-^]. Specifying M-bM-^@M-^\yesM-bM-^@M-^] requests the - default tunnel mode, which is M-bM-^@M-^\point-to-pointM-bM-^@M-^]. The default is - M-bM-^@M-^\noM-bM-^@M-^]. - - TunnelDevice - Specifies the tun(4) devices to open on the client (local_tun) - and the server (remote_tun). - - The argument must be local_tun[:remote_tun]. The devices may be - specified by numerical ID or the keyword M-bM-^@M-^\anyM-bM-^@M-^], which uses the - next available tunnel device. If remote_tun is not specified, it - defaults to M-bM-^@M-^\anyM-bM-^@M-^]. The default is M-bM-^@M-^\any:anyM-bM-^@M-^]. - - UpdateHostKeys - Specifies whether ssh(1) should accept notifications of - additional hostkeys from the server sent after authentication has - completed and add them to UserKnownHostsFile. The argument must - be M-bM-^@M-^\yesM-bM-^@M-^], M-bM-^@M-^\noM-bM-^@M-^] (the default) or M-bM-^@M-^\askM-bM-^@M-^]. Enabling this option - allows learning alternate hostkeys for a server and supports - graceful key rotation by allowing a server to send replacement - public keys before old ones are removed. Additional hostkeys are - only accepted if the key used to authenticate the host was - already trusted or explicity accepted by the user. If - UpdateHostKeys is set to M-bM-^@M-^\askM-bM-^@M-^], then the user is asked to confirm - the modifications to the known_hosts file. Confirmation is - currently incompatible with ControlPersist, and will be disabled - if it is enabled. - - Presently, only sshd(8) from OpenSSH 6.8 and greater support the - M-bM-^@M-^\hostkeys@openssh.comM-bM-^@M-^] protocol extension used to inform the - client of all the server's hostkeys. - - UsePrivilegedPort - Specifies whether to use a privileged port for outgoing - connections. The argument must be M-bM-^@M-^\yesM-bM-^@M-^] or M-bM-^@M-^\noM-bM-^@M-^]. The default is - M-bM-^@M-^\noM-bM-^@M-^]. If set to M-bM-^@M-^\yesM-bM-^@M-^], ssh(1) must be setuid root. Note that - this option must be set to M-bM-^@M-^\yesM-bM-^@M-^] for RhostsRSAAuthentication with - older servers. - - User Specifies the user to log in as. This can be useful when a - different user name is used on different machines. This saves - the trouble of having to remember to give the user name on the - command line. - - UserKnownHostsFile - Specifies one or more files to use for the user host key - database, separated by whitespace. The default is - ~/.ssh/known_hosts, ~/.ssh/known_hosts2. - - VerifyHostKeyDNS - Specifies whether to verify the remote key using DNS and SSHFP - resource records. If this option is set to M-bM-^@M-^\yesM-bM-^@M-^], the client - will implicitly trust keys that match a secure fingerprint from - DNS. Insecure fingerprints will be handled as if this option was - set to M-bM-^@M-^\askM-bM-^@M-^]. If this option is set to M-bM-^@M-^\askM-bM-^@M-^], information on - fingerprint match will be displayed, but the user will still need - to confirm new host keys according to the StrictHostKeyChecking - option. The argument must be M-bM-^@M-^\yesM-bM-^@M-^], M-bM-^@M-^\noM-bM-^@M-^], or M-bM-^@M-^\askM-bM-^@M-^]. The default - is M-bM-^@M-^\noM-bM-^@M-^]. Note that this option applies to protocol version 2 - only. - - See also VERIFYING HOST KEYS in ssh(1). - - VisualHostKey - If this flag is set to M-bM-^@M-^\yesM-bM-^@M-^], an ASCII art representation of the - remote host key fingerprint is printed in addition to the - fingerprint string at login and for unknown host keys. If this - flag is set to M-bM-^@M-^\noM-bM-^@M-^], no fingerprint strings are printed at login - and only the fingerprint string will be printed for unknown host - keys. The default is M-bM-^@M-^\noM-bM-^@M-^]. - - XAuthLocation - Specifies the full pathname of the xauth(1) program. The default - is /usr/X11R6/bin/xauth. - -PATTERNS - A pattern consists of zero or more non-whitespace characters, M-bM-^@M-^X*M-bM-^@M-^Y (a - wildcard that matches zero or more characters), or M-bM-^@M-^X?M-bM-^@M-^Y (a wildcard that - matches exactly one character). For example, to specify a set of - declarations for any host in the M-bM-^@M-^\.co.ukM-bM-^@M-^] set of domains, the following - pattern could be used: - - Host *.co.uk - - The following pattern would match any host in the 192.168.0.[0-9] network - range: - - Host 192.168.0.? - - A pattern-list is a comma-separated list of patterns. Patterns within - pattern-lists may be negated by preceding them with an exclamation mark - (M-bM-^@M-^X!M-bM-^@M-^Y). For example, to allow a key to be used from anywhere within an - organization except from the M-bM-^@M-^\dialupM-bM-^@M-^] pool, the following entry (in - authorized_keys) could be used: - - from="!*.dialup.example.com,*.example.com" - -FILES - ~/.ssh/config - This is the per-user configuration file. The format of this file - is described above. This file is used by the SSH client. - Because of the potential for abuse, this file must have strict - permissions: read/write for the user, and not accessible by - others. - - /etc/ssh/ssh_config - Systemwide configuration file. This file provides defaults for - those values that are not specified in the user's configuration - file, and for those users who do not have a configuration file. - This file must be world-readable. - -SEE ALSO - ssh(1) - -AUTHORS - OpenSSH is a derivative of the original and free ssh 1.2.12 release by - Tatu Ylonen. Aaron Campbell, Bob Beck, Markus Friedl, Niels Provos, Theo - de Raadt and Dug Song removed many bugs, re-added newer features and - created OpenSSH. Markus Friedl contributed the support for SSH protocol - versions 1.5 and 2.0. - -OpenBSD 5.8 July 30, 2015 OpenBSD 5.8 diff --git a/crypto/openssh/sshd.0 b/crypto/openssh/sshd.0 deleted file mode 100644 index e771c95..0000000 --- a/crypto/openssh/sshd.0 +++ /dev/null @@ -1,640 +0,0 @@ -SSHD(8) System Manager's Manual SSHD(8) - -NAME - sshd M-bM-^@M-^S OpenSSH SSH daemon - -SYNOPSIS - sshd [-46DdeiqTt] [-b bits] [-C connection_spec] - [-c host_certificate_file] [-E log_file] [-f config_file] - [-g login_grace_time] [-h host_key_file] [-k key_gen_time] - [-o option] [-p port] [-u len] - -DESCRIPTION - sshd (OpenSSH Daemon) is the daemon program for ssh(1). Together these - programs replace rlogin and rsh, and provide secure encrypted - communications between two untrusted hosts over an insecure network. - - sshd listens for connections from clients. It is normally started at - boot from /etc/rc. It forks a new daemon for each incoming connection. - The forked daemons handle key exchange, encryption, authentication, - command execution, and data exchange. - - sshd can be configured using command-line options or a configuration file - (by default sshd_config(5)); command-line options override values - specified in the configuration file. sshd rereads its configuration file - when it receives a hangup signal, SIGHUP, by executing itself with the - name and options it was started with, e.g. /usr/sbin/sshd. - - The options are as follows: - - -4 Forces sshd to use IPv4 addresses only. - - -6 Forces sshd to use IPv6 addresses only. - - -b bits - Specifies the number of bits in the ephemeral protocol version 1 - server key (default 1024). - - -C connection_spec - Specify the connection parameters to use for the -T extended test - mode. If provided, any Match directives in the configuration - file that would apply to the specified user, host, and address - will be set before the configuration is written to standard - output. The connection parameters are supplied as keyword=value - pairs. The keywords are M-bM-^@M-^\userM-bM-^@M-^], M-bM-^@M-^\hostM-bM-^@M-^], M-bM-^@M-^\laddrM-bM-^@M-^], M-bM-^@M-^\lportM-bM-^@M-^], and - M-bM-^@M-^\addrM-bM-^@M-^]. All are required and may be supplied in any order, - either with multiple -C options or as a comma-separated list. - - -c host_certificate_file - Specifies a path to a certificate file to identify sshd during - key exchange. The certificate file must match a host key file - specified using the -h option or the HostKey configuration - directive. - - -D When this option is specified, sshd will not detach and does not - become a daemon. This allows easy monitoring of sshd. - - -d Debug mode. The server sends verbose debug output to standard - error, and does not put itself in the background. The server - also will not fork and will only process one connection. This - option is only intended for debugging for the server. Multiple - -d options increase the debugging level. Maximum is 3. - - -E log_file - Append debug logs to log_file instead of the system log. - - -e Write debug logs to standard error instead of the system log. - - -f config_file - Specifies the name of the configuration file. The default is - /etc/ssh/sshd_config. sshd refuses to start if there is no - configuration file. - - -g login_grace_time - Gives the grace time for clients to authenticate themselves - (default 120 seconds). If the client fails to authenticate the - user within this many seconds, the server disconnects and exits. - A value of zero indicates no limit. - - -h host_key_file - Specifies a file from which a host key is read. This option must - be given if sshd is not run as root (as the normal host key files - are normally not readable by anyone but root). The default is - /etc/ssh/ssh_host_key for protocol version 1, and - /etc/ssh/ssh_host_dsa_key, /etc/ssh/ssh_host_ecdsa_key. - /etc/ssh/ssh_host_ed25519_key and /etc/ssh/ssh_host_rsa_key for - protocol version 2. It is possible to have multiple host key - files for the different protocol versions and host key - algorithms. - - -i Specifies that sshd is being run from inetd(8). If SSH protocol - 1 is enabled, sshd should not normally be run from inetd because - it needs to generate the server key before it can respond to the - client, and this may take some time. Clients may have to wait - too long if the key was regenerated every time. - - -k key_gen_time - Specifies how often the ephemeral protocol version 1 server key - is regenerated (default 3600 seconds, or one hour). The - motivation for regenerating the key fairly often is that the key - is not stored anywhere, and after about an hour it becomes - impossible to recover the key for decrypting intercepted - communications even if the machine is cracked into or physically - seized. A value of zero indicates that the key will never be - regenerated. - - -o option - Can be used to give options in the format used in the - configuration file. This is useful for specifying options for - which there is no separate command-line flag. For full details - of the options, and their values, see sshd_config(5). - - -p port - Specifies the port on which the server listens for connections - (default 22). Multiple port options are permitted. Ports - specified in the configuration file with the Port option are - ignored when a command-line port is specified. Ports specified - using the ListenAddress option override command-line ports. - - -q Quiet mode. Nothing is sent to the system log. Normally the - beginning, authentication, and termination of each connection is - logged. - - -T Extended test mode. Check the validity of the configuration - file, output the effective configuration to stdout and then exit. - Optionally, Match rules may be applied by specifying the - connection parameters using one or more -C options. - - -t Test mode. Only check the validity of the configuration file and - sanity of the keys. This is useful for updating sshd reliably as - configuration options may change. - - -u len This option is used to specify the size of the field in the utmp - structure that holds the remote host name. If the resolved host - name is longer than len, the dotted decimal value will be used - instead. This allows hosts with very long host names that - overflow this field to still be uniquely identified. Specifying - -u0 indicates that only dotted decimal addresses should be put - into the utmp file. -u0 may also be used to prevent sshd from - making DNS requests unless the authentication mechanism or - configuration requires it. Authentication mechanisms that may - require DNS include RhostsRSAAuthentication, - HostbasedAuthentication, and using a from="pattern-list" option - in a key file. Configuration options that require DNS include - using a USER@HOST pattern in AllowUsers or DenyUsers. - -AUTHENTICATION - The OpenSSH SSH daemon supports SSH protocols 1 and 2. The default is to - use protocol 2 only, though this can be changed via the Protocol option - in sshd_config(5). Protocol 2 supports DSA, ECDSA, Ed25519 and RSA keys; - protocol 1 only supports RSA keys. For both protocols, each host has a - host-specific key, normally 2048 bits, used to identify the host. - - Forward security for protocol 1 is provided through an additional server - key, normally 1024 bits, generated when the server starts. This key is - normally regenerated every hour if it has been used, and is never stored - on disk. Whenever a client connects, the daemon responds with its public - host and server keys. The client compares the RSA host key against its - own database to verify that it has not changed. The client then - generates a 256-bit random number. It encrypts this random number using - both the host key and the server key, and sends the encrypted number to - the server. Both sides then use this random number as a session key - which is used to encrypt all further communications in the session. The - rest of the session is encrypted using a conventional cipher, currently - Blowfish or 3DES, with 3DES being used by default. The client selects - the encryption algorithm to use from those offered by the server. - - For protocol 2, forward security is provided through a Diffie-Hellman key - agreement. This key agreement results in a shared session key. The rest - of the session is encrypted using a symmetric cipher, currently 128-bit - AES, Blowfish, 3DES, CAST128, Arcfour, 192-bit AES, or 256-bit AES. The - client selects the encryption algorithm to use from those offered by the - server. Additionally, session integrity is provided through a - cryptographic message authentication code (hmac-md5, hmac-sha1, umac-64, - umac-128, hmac-ripemd160, hmac-sha2-256 or hmac-sha2-512). - - Finally, the server and the client enter an authentication dialog. The - client tries to authenticate itself using host-based authentication, - public key authentication, challenge-response authentication, or password - authentication. - - Regardless of the authentication type, the account is checked to ensure - that it is accessible. An account is not accessible if it is locked, - listed in DenyUsers or its group is listed in DenyGroups . The - definition of a locked account is system dependant. Some platforms have - their own account database (eg AIX) and some modify the passwd field ( - M-bM-^@M-^X*LK*M-bM-^@M-^Y on Solaris and UnixWare, M-bM-^@M-^X*M-bM-^@M-^Y on HP-UX, containing M-bM-^@M-^XNologinM-bM-^@M-^Y on - Tru64, a leading M-bM-^@M-^X*LOCKED*M-bM-^@M-^Y on FreeBSD and a leading M-bM-^@M-^X!M-bM-^@M-^Y on most - Linuxes). If there is a requirement to disable password authentication - for the account while allowing still public-key, then the passwd field - should be set to something other than these values (eg M-bM-^@M-^XNPM-bM-^@M-^Y or M-bM-^@M-^X*NP*M-bM-^@M-^Y ). - - If the client successfully authenticates itself, a dialog for preparing - the session is entered. At this time the client may request things like - allocating a pseudo-tty, forwarding X11 connections, forwarding TCP - connections, or forwarding the authentication agent connection over the - secure channel. - - After this, the client either requests a shell or execution of a command. - The sides then enter session mode. In this mode, either side may send - data at any time, and such data is forwarded to/from the shell or command - on the server side, and the user terminal in the client side. - - When the user program terminates and all forwarded X11 and other - connections have been closed, the server sends command exit status to the - client, and both sides exit. - -LOGIN PROCESS - When a user successfully logs in, sshd does the following: - - 1. If the login is on a tty, and no command has been specified, - prints last login time and /etc/motd (unless prevented in the - configuration file or by ~/.hushlogin; see the FILES section). - - 2. If the login is on a tty, records login time. - - 3. Checks /etc/nologin; if it exists, prints contents and quits - (unless root). - - 4. Changes to run with normal user privileges. - - 5. Sets up basic environment. - - 6. Reads the file ~/.ssh/environment, if it exists, and users are - allowed to change their environment. See the - PermitUserEnvironment option in sshd_config(5). - - 7. Changes to user's home directory. - - 8. If ~/.ssh/rc exists and the sshd_config(5) PermitUserRC option - is set, runs it; else if /etc/ssh/sshrc exists, runs it; - otherwise runs xauth. The M-bM-^@M-^\rcM-bM-^@M-^] files are given the X11 - authentication protocol and cookie in standard input. See - SSHRC, below. - - 9. Runs user's shell or command. All commands are run under the - user's login shell as specified in the system password - database. - -SSHRC - If the file ~/.ssh/rc exists, sh(1) runs it after reading the environment - files but before starting the user's shell or command. It must not - produce any output on stdout; stderr must be used instead. If X11 - forwarding is in use, it will receive the "proto cookie" pair in its - standard input (and DISPLAY in its environment). The script must call - xauth(1) because sshd will not run xauth automatically to add X11 - cookies. - - The primary purpose of this file is to run any initialization routines - which may be needed before the user's home directory becomes accessible; - AFS is a particular example of such an environment. - - This file will probably contain some initialization code followed by - something similar to: - - if read proto cookie && [ -n "$DISPLAY" ]; then - if [ `echo $DISPLAY | cut -c1-10` = 'localhost:' ]; then - # X11UseLocalhost=yes - echo add unix:`echo $DISPLAY | - cut -c11-` $proto $cookie - else - # X11UseLocalhost=no - echo add $DISPLAY $proto $cookie - fi | xauth -q - - fi - - If this file does not exist, /etc/ssh/sshrc is run, and if that does not - exist either, xauth is used to add the cookie. - -AUTHORIZED_KEYS FILE FORMAT - AuthorizedKeysFile specifies the files containing public keys for public - key authentication; if none is specified, the default is - ~/.ssh/authorized_keys and ~/.ssh/authorized_keys2. Each line of the - file contains one key (empty lines and lines starting with a M-bM-^@M-^X#M-bM-^@M-^Y are - ignored as comments). Protocol 1 public keys consist of the following - space-separated fields: options, bits, exponent, modulus, comment. - Protocol 2 public key consist of: options, keytype, base64-encoded key, - comment. The options field is optional; its presence is determined by - whether the line starts with a number or not (the options field never - starts with a number). The bits, exponent, modulus, and comment fields - give the RSA key for protocol version 1; the comment field is not used - for anything (but may be convenient for the user to identify the key). - For protocol version 2 the keytype is M-bM-^@M-^\ecdsa-sha2-nistp256M-bM-^@M-^], - M-bM-^@M-^\ecdsa-sha2-nistp384M-bM-^@M-^], M-bM-^@M-^\ecdsa-sha2-nistp521M-bM-^@M-^], M-bM-^@M-^\ssh-ed25519M-bM-^@M-^], M-bM-^@M-^\ssh-dssM-bM-^@M-^] or - M-bM-^@M-^\ssh-rsaM-bM-^@M-^]. - - Note that lines in this file are usually several hundred bytes long - (because of the size of the public key encoding) up to a limit of 8 - kilobytes, which permits DSA keys up to 8 kilobits and RSA keys up to 16 - kilobits. You don't want to type them in; instead, copy the - identity.pub, id_dsa.pub, id_ecdsa.pub, id_ed25519.pub, or the id_rsa.pub - file and edit it. - - sshd enforces a minimum RSA key modulus size for protocol 1 and protocol - 2 keys of 768 bits. - - The options (if present) consist of comma-separated option - specifications. No spaces are permitted, except within double quotes. - The following option specifications are supported (note that option - keywords are case-insensitive): - - cert-authority - Specifies that the listed key is a certification authority (CA) - that is trusted to validate signed certificates for user - authentication. - - Certificates may encode access restrictions similar to these key - options. If both certificate restrictions and key options are - present, the most restrictive union of the two is applied. - - command="command" - Specifies that the command is executed whenever this key is used - for authentication. The command supplied by the user (if any) is - ignored. The command is run on a pty if the client requests a - pty; otherwise it is run without a tty. If an 8-bit clean - channel is required, one must not request a pty or should specify - no-pty. A quote may be included in the command by quoting it - with a backslash. This option might be useful to restrict - certain public keys to perform just a specific operation. An - example might be a key that permits remote backups but nothing - else. Note that the client may specify TCP and/or X11 forwarding - unless they are explicitly prohibited. The command originally - supplied by the client is available in the SSH_ORIGINAL_COMMAND - environment variable. Note that this option applies to shell, - command or subsystem execution. Also note that this command may - be superseded by either a sshd_config(5) ForceCommand directive - or a command embedded in a certificate. - - environment="NAME=value" - Specifies that the string is to be added to the environment when - logging in using this key. Environment variables set this way - override other default environment values. Multiple options of - this type are permitted. Environment processing is disabled by - default and is controlled via the PermitUserEnvironment option. - This option is automatically disabled if UseLogin is enabled. - - from="pattern-list" - Specifies that in addition to public key authentication, either - the canonical name of the remote host or its IP address must be - present in the comma-separated list of patterns. See PATTERNS in - ssh_config(5) for more information on patterns. - - In addition to the wildcard matching that may be applied to - hostnames or addresses, a from stanza may match IP addresses - using CIDR address/masklen notation. - - The purpose of this option is to optionally increase security: - public key authentication by itself does not trust the network or - name servers or anything (but the key); however, if somebody - somehow steals the key, the key permits an intruder to log in - from anywhere in the world. This additional option makes using a - stolen key more difficult (name servers and/or routers would have - to be compromised in addition to just the key). - - no-agent-forwarding - Forbids authentication agent forwarding when this key is used for - authentication. - - no-port-forwarding - Forbids TCP forwarding when this key is used for authentication. - Any port forward requests by the client will return an error. - This might be used, e.g. in connection with the command option. - - no-pty Prevents tty allocation (a request to allocate a pty will fail). - - no-user-rc - Disables execution of ~/.ssh/rc. - - no-X11-forwarding - Forbids X11 forwarding when this key is used for authentication. - Any X11 forward requests by the client will return an error. - - permitopen="host:port" - Limit local port forwarding with ssh(1) -L such that it may only - connect to the specified host and port. IPv6 addresses can be - specified by enclosing the address in square brackets. Multiple - permitopen options may be applied separated by commas. No - pattern matching is performed on the specified hostnames, they - must be literal domains or addresses. A port specification of * - matches any port. - - principals="principals" - On a cert-authority line, specifies allowed principals for - certificate authentication as a comma-separated list. At least - one name from the list must appear in the certificate's list of - principals for the certificate to be accepted. This option is - ignored for keys that are not marked as trusted certificate - signers using the cert-authority option. - - tunnel="n" - Force a tun(4) device on the server. Without this option, the - next available device will be used if the client requests a - tunnel. - - An example authorized_keys file: - - # Comments allowed at start of line - ssh-rsa AAAAB3Nza...LiPk== user@example.net - from="*.sales.example.net,!pc.sales.example.net" ssh-rsa - AAAAB2...19Q== john@example.net - command="dump /home",no-pty,no-port-forwarding ssh-dss - AAAAC3...51R== example.net - permitopen="192.0.2.1:80",permitopen="192.0.2.2:25" ssh-dss - AAAAB5...21S== - tunnel="0",command="sh /etc/netstart tun0" ssh-rsa AAAA...== - jane@example.net - -SSH_KNOWN_HOSTS FILE FORMAT - The /etc/ssh/ssh_known_hosts and ~/.ssh/known_hosts files contain host - public keys for all known hosts. The global file should be prepared by - the administrator (optional), and the per-user file is maintained - automatically: whenever the user connects from an unknown host, its key - is added to the per-user file. - - Each line in these files contains the following fields: markers - (optional), hostnames, bits, exponent, modulus, comment. The fields are - separated by spaces. - - The marker is optional, but if it is present then it must be one of - M-bM-^@M-^\@cert-authorityM-bM-^@M-^], to indicate that the line contains a certification - authority (CA) key, or M-bM-^@M-^\@revokedM-bM-^@M-^], to indicate that the key contained on - the line is revoked and must not ever be accepted. Only one marker - should be used on a key line. - - Hostnames is a comma-separated list of patterns (M-bM-^@M-^X*M-bM-^@M-^Y and M-bM-^@M-^X?M-bM-^@M-^Y act as - wildcards); each pattern in turn is matched against the canonical host - name (when authenticating a client) or against the user-supplied name - (when authenticating a server). A pattern may also be preceded by M-bM-^@M-^X!M-bM-^@M-^Y to - indicate negation: if the host name matches a negated pattern, it is not - accepted (by that line) even if it matched another pattern on the line. - A hostname or address may optionally be enclosed within M-bM-^@M-^X[M-bM-^@M-^Y and M-bM-^@M-^X]M-bM-^@M-^Y - brackets then followed by M-bM-^@M-^X:M-bM-^@M-^Y and a non-standard port number. - - Alternately, hostnames may be stored in a hashed form which hides host - names and addresses should the file's contents be disclosed. Hashed - hostnames start with a M-bM-^@M-^X|M-bM-^@M-^Y character. Only one hashed hostname may - appear on a single line and none of the above negation or wildcard - operators may be applied. - - Bits, exponent, and modulus are taken directly from the RSA host key; - they can be obtained, for example, from /etc/ssh/ssh_host_key.pub. The - optional comment field continues to the end of the line, and is not used. - - Lines starting with M-bM-^@M-^X#M-bM-^@M-^Y and empty lines are ignored as comments. - - When performing host authentication, authentication is accepted if any - matching line has the proper key; either one that matches exactly or, if - the server has presented a certificate for authentication, the key of the - certification authority that signed the certificate. For a key to be - trusted as a certification authority, it must use the M-bM-^@M-^\@cert-authorityM-bM-^@M-^] - marker described above. - - The known hosts file also provides a facility to mark keys as revoked, - for example when it is known that the associated private key has been - stolen. Revoked keys are specified by including the M-bM-^@M-^\@revokedM-bM-^@M-^] marker at - the beginning of the key line, and are never accepted for authentication - or as certification authorities, but instead will produce a warning from - ssh(1) when they are encountered. - - It is permissible (but not recommended) to have several lines or - different host keys for the same names. This will inevitably happen when - short forms of host names from different domains are put in the file. It - is possible that the files contain conflicting information; - authentication is accepted if valid information can be found from either - file. - - Note that the lines in these files are typically hundreds of characters - long, and you definitely don't want to type in the host keys by hand. - Rather, generate them by a script, ssh-keyscan(1) or by taking - /etc/ssh/ssh_host_key.pub and adding the host names at the front. - ssh-keygen(1) also offers some basic automated editing for - ~/.ssh/known_hosts including removing hosts matching a host name and - converting all host names to their hashed representations. - - An example ssh_known_hosts file: - - # Comments allowed at start of line - closenet,...,192.0.2.53 1024 37 159...93 closenet.example.net - cvs.example.net,192.0.2.10 ssh-rsa AAAA1234.....= - # A hashed hostname - |1|JfKTdBh7rNbXkVAQCRp4OQoPfmI=|USECr3SWf1JUPsms5AqfD5QfxkM= ssh-rsa - AAAA1234.....= - # A revoked key - @revoked * ssh-rsa AAAAB5W... - # A CA key, accepted for any host in *.mydomain.com or *.mydomain.org - @cert-authority *.mydomain.org,*.mydomain.com ssh-rsa AAAAB5W... - -FILES - ~/.hushlogin - This file is used to suppress printing the last login time and - /etc/motd, if PrintLastLog and PrintMotd, respectively, are - enabled. It does not suppress printing of the banner specified - by Banner. - - ~/.rhosts - This file is used for host-based authentication (see ssh(1) for - more information). On some machines this file may need to be - world-readable if the user's home directory is on an NFS - partition, because sshd reads it as root. Additionally, this - file must be owned by the user, and must not have write - permissions for anyone else. The recommended permission for most - machines is read/write for the user, and not accessible by - others. - - ~/.shosts - This file is used in exactly the same way as .rhosts, but allows - host-based authentication without permitting login with - rlogin/rsh. - - ~/.ssh/ - This directory is the default location for all user-specific - configuration and authentication information. There is no - general requirement to keep the entire contents of this directory - secret, but the recommended permissions are read/write/execute - for the user, and not accessible by others. - - ~/.ssh/authorized_keys - Lists the public keys (DSA, ECDSA, Ed25519, RSA) that can be used - for logging in as this user. The format of this file is - described above. The content of the file is not highly - sensitive, but the recommended permissions are read/write for the - user, and not accessible by others. - - If this file, the ~/.ssh directory, or the user's home directory - are writable by other users, then the file could be modified or - replaced by unauthorized users. In this case, sshd will not - allow it to be used unless the StrictModes option has been set to - M-bM-^@M-^\noM-bM-^@M-^]. - - ~/.ssh/environment - This file is read into the environment at login (if it exists). - It can only contain empty lines, comment lines (that start with - M-bM-^@M-^X#M-bM-^@M-^Y), and assignment lines of the form name=value. The file - should be writable only by the user; it need not be readable by - anyone else. Environment processing is disabled by default and - is controlled via the PermitUserEnvironment option. - - ~/.ssh/known_hosts - Contains a list of host keys for all hosts the user has logged - into that are not already in the systemwide list of known host - keys. The format of this file is described above. This file - should be writable only by root/the owner and can, but need not - be, world-readable. - - ~/.ssh/rc - Contains initialization routines to be run before the user's home - directory becomes accessible. This file should be writable only - by the user, and need not be readable by anyone else. - - /etc/hosts.allow - /etc/hosts.deny - Access controls that should be enforced by tcp-wrappers are - defined here. Further details are described in hosts_access(5). - - /etc/hosts.equiv - This file is for host-based authentication (see ssh(1)). It - should only be writable by root. - - /etc/moduli - Contains Diffie-Hellman groups used for the "Diffie-Hellman Group - Exchange". The file format is described in moduli(5). - - /etc/motd - See motd(5). - - /etc/nologin - If this file exists, sshd refuses to let anyone except root log - in. The contents of the file are displayed to anyone trying to - log in, and non-root connections are refused. The file should be - world-readable. - - /etc/shosts.equiv - This file is used in exactly the same way as hosts.equiv, but - allows host-based authentication without permitting login with - rlogin/rsh. - - /etc/ssh/ssh_host_key - /etc/ssh/ssh_host_dsa_key - /etc/ssh/ssh_host_ecdsa_key - /etc/ssh/ssh_host_ed25519_key - /etc/ssh/ssh_host_rsa_key - These files contain the private parts of the host keys. These - files should only be owned by root, readable only by root, and - not accessible to others. Note that sshd does not start if these - files are group/world-accessible. - - /etc/ssh/ssh_host_key.pub - /etc/ssh/ssh_host_dsa_key.pub - /etc/ssh/ssh_host_ecdsa_key.pub - /etc/ssh/ssh_host_ed25519_key.pub - /etc/ssh/ssh_host_rsa_key.pub - These files contain the public parts of the host keys. These - files should be world-readable but writable only by root. Their - contents should match the respective private parts. These files - are not really used for anything; they are provided for the - convenience of the user so their contents can be copied to known - hosts files. These files are created using ssh-keygen(1). - - /etc/ssh/ssh_known_hosts - Systemwide list of known host keys. This file should be prepared - by the system administrator to contain the public host keys of - all machines in the organization. The format of this file is - described above. This file should be writable only by root/the - owner and should be world-readable. - - /etc/ssh/sshd_config - Contains configuration data for sshd. The file format and - configuration options are described in sshd_config(5). - - /etc/ssh/sshrc - Similar to ~/.ssh/rc, it can be used to specify machine-specific - login-time initializations globally. This file should be - writable only by root, and should be world-readable. - - /var/empty - chroot(2) directory used by sshd during privilege separation in - the pre-authentication phase. The directory should not contain - any files and must be owned by root and not group or world- - writable. - - /var/run/sshd.pid - Contains the process ID of the sshd listening for connections (if - there are several daemons running concurrently for different - ports, this contains the process ID of the one started last). - The content of this file is not sensitive; it can be world- - readable. - -SEE ALSO - scp(1), sftp(1), ssh(1), ssh-add(1), ssh-agent(1), ssh-keygen(1), - ssh-keyscan(1), chroot(2), hosts_access(5), login.conf(5), moduli(5), - sshd_config(5), inetd(8), sftp-server(8) - -AUTHORS - OpenSSH is a derivative of the original and free ssh 1.2.12 release by - Tatu Ylonen. Aaron Campbell, Bob Beck, Markus Friedl, Niels Provos, Theo - de Raadt and Dug Song removed many bugs, re-added newer features and - created OpenSSH. Markus Friedl contributed the support for SSH protocol - versions 1.5 and 2.0. Niels Provos and Markus Friedl contributed support - for privilege separation. - -OpenBSD 5.8 July 3, 2015 OpenBSD 5.8 diff --git a/crypto/openssh/sshd_config.0 b/crypto/openssh/sshd_config.0 deleted file mode 100644 index 1cc7459..0000000 --- a/crypto/openssh/sshd_config.0 +++ /dev/null @@ -1,1052 +0,0 @@ -SSHD_CONFIG(5) File Formats Manual SSHD_CONFIG(5) - -NAME - sshd_config M-bM-^@M-^S OpenSSH SSH daemon configuration file - -SYNOPSIS - /etc/ssh/sshd_config - -DESCRIPTION - sshd(8) reads configuration data from /etc/ssh/sshd_config (or the file - specified with -f on the command line). The file contains keyword- - argument pairs, one per line. Lines starting with M-bM-^@M-^X#M-bM-^@M-^Y and empty lines - are interpreted as comments. Arguments may optionally be enclosed in - double quotes (") in order to represent arguments containing spaces. - - The possible keywords and their meanings are as follows (note that - keywords are case-insensitive and arguments are case-sensitive): - - AcceptEnv - Specifies what environment variables sent by the client will be - copied into the session's environ(7). See SendEnv in - ssh_config(5) for how to configure the client. Note that - environment passing is only supported for protocol 2, and that - the TERM environment variable is always sent whenever the client - requests a pseudo-terminal as it is required by the protocol. - Variables are specified by name, which may contain the wildcard - characters M-bM-^@M-^X*M-bM-^@M-^Y and M-bM-^@M-^X?M-bM-^@M-^Y. Multiple environment variables may be - separated by whitespace or spread across multiple AcceptEnv - directives. Be warned that some environment variables could be - used to bypass restricted user environments. For this reason, - care should be taken in the use of this directive. The default - is not to accept any environment variables. - - AddressFamily - Specifies which address family should be used by sshd(8). Valid - arguments are M-bM-^@M-^\anyM-bM-^@M-^], M-bM-^@M-^\inetM-bM-^@M-^] (use IPv4 only), or M-bM-^@M-^\inet6M-bM-^@M-^] (use IPv6 - only). The default is M-bM-^@M-^\anyM-bM-^@M-^]. - - AllowAgentForwarding - Specifies whether ssh-agent(1) forwarding is permitted. The - default is M-bM-^@M-^\yesM-bM-^@M-^]. Note that disabling agent forwarding does not - improve security unless users are also denied shell access, as - they can always install their own forwarders. - - AllowGroups - This keyword can be followed by a list of group name patterns, - separated by spaces. If specified, login is allowed only for - users whose primary group or supplementary group list matches one - of the patterns. Only group names are valid; a numerical group - ID is not recognized. By default, login is allowed for all - groups. The allow/deny directives are processed in the following - order: DenyUsers, AllowUsers, DenyGroups, and finally - AllowGroups. - - See PATTERNS in ssh_config(5) for more information on patterns. - - AllowTcpForwarding - Specifies whether TCP forwarding is permitted. The available - options are M-bM-^@M-^\yesM-bM-^@M-^] or M-bM-^@M-^\allM-bM-^@M-^] to allow TCP forwarding, M-bM-^@M-^\noM-bM-^@M-^] to - prevent all TCP forwarding, M-bM-^@M-^\localM-bM-^@M-^] to allow local (from the - perspective of ssh(1)) forwarding only or M-bM-^@M-^\remoteM-bM-^@M-^] to allow - remote forwarding only. The default is M-bM-^@M-^\yesM-bM-^@M-^]. Note that - disabling TCP forwarding does not improve security unless users - are also denied shell access, as they can always install their - own forwarders. - - AllowStreamLocalForwarding - Specifies whether StreamLocal (Unix-domain socket) forwarding is - permitted. The available options are M-bM-^@M-^\yesM-bM-^@M-^] or M-bM-^@M-^\allM-bM-^@M-^] to allow - StreamLocal forwarding, M-bM-^@M-^\noM-bM-^@M-^] to prevent all StreamLocal - forwarding, M-bM-^@M-^\localM-bM-^@M-^] to allow local (from the perspective of - ssh(1)) forwarding only or M-bM-^@M-^\remoteM-bM-^@M-^] to allow remote forwarding - only. The default is M-bM-^@M-^\yesM-bM-^@M-^]. Note that disabling StreamLocal - forwarding does not improve security unless users are also denied - shell access, as they can always install their own forwarders. - - AllowUsers - This keyword can be followed by a list of user name patterns, - separated by spaces. If specified, login is allowed only for - user names that match one of the patterns. Only user names are - valid; a numerical user ID is not recognized. By default, login - is allowed for all users. If the pattern takes the form - USER@HOST then USER and HOST are separately checked, restricting - logins to particular users from particular hosts. The allow/deny - directives are processed in the following order: DenyUsers, - AllowUsers, DenyGroups, and finally AllowGroups. - - See PATTERNS in ssh_config(5) for more information on patterns. - - AuthenticationMethods - Specifies the authentication methods that must be successfully - completed for a user to be granted access. This option must be - followed by one or more comma-separated lists of authentication - method names. Successful authentication requires completion of - every method in at least one of these lists. - - For example, an argument of M-bM-^@M-^\publickey,password - publickey,keyboard-interactiveM-bM-^@M-^] would require the user to - complete public key authentication, followed by either password - or keyboard interactive authentication. Only methods that are - next in one or more lists are offered at each stage, so for this - example, it would not be possible to attempt password or - keyboard-interactive authentication before public key. - - For keyboard interactive authentication it is also possible to - restrict authentication to a specific device by appending a colon - followed by the device identifier M-bM-^@M-^\bsdauthM-bM-^@M-^], M-bM-^@M-^\pamM-bM-^@M-^], or M-bM-^@M-^\skeyM-bM-^@M-^], - depending on the server configuration. For example, - M-bM-^@M-^\keyboard-interactive:bsdauthM-bM-^@M-^] would restrict keyboard - interactive authentication to the M-bM-^@M-^\bsdauthM-bM-^@M-^] device. - - If the M-bM-^@M-^\publickeyM-bM-^@M-^] method is listed more than once, sshd(8) - verifies that keys that have been used successfully are not - reused for subsequent authentications. For example, an - AuthenticationMethods of M-bM-^@M-^\publickey,publickeyM-bM-^@M-^] will require - successful authentication using two different public keys. - - This option is only available for SSH protocol 2 and will yield a - fatal error if enabled if protocol 1 is also enabled. Note that - each authentication method listed should also be explicitly - enabled in the configuration. The default is not to require - multiple authentication; successful completion of a single - authentication method is sufficient. - - AuthorizedKeysCommand - Specifies a program to be used to look up the user's public keys. - The program must be owned by root, not writable by group or - others and specified by an absolute path. - - Arguments to AuthorizedKeysCommand may be provided using the - following tokens, which will be expanded at runtime: %% is - replaced by a literal '%', %u is replaced by the username being - authenticated, %h is replaced by the home directory of the user - being authenticated, %t is replaced with the key type offered for - authentication, %f is replaced with the fingerprint of the key, - and %k is replaced with the key being offered for authentication. - If no arguments are specified then the username of the target - user will be supplied. - - The program should produce on standard output zero or more lines - of authorized_keys output (see AUTHORIZED_KEYS in sshd(8)). If a - key supplied by AuthorizedKeysCommand does not successfully - authenticate and authorize the user then public key - authentication continues using the usual AuthorizedKeysFile - files. By default, no AuthorizedKeysCommand is run. - - AuthorizedKeysCommandUser - Specifies the user under whose account the AuthorizedKeysCommand - is run. It is recommended to use a dedicated user that has no - other role on the host than running authorized keys commands. If - AuthorizedKeysCommand is specified but AuthorizedKeysCommandUser - is not, then sshd(8) will refuse to start. - - AuthorizedKeysFile - Specifies the file that contains the public keys that can be used - for user authentication. The format is described in the - AUTHORIZED_KEYS FILE FORMAT section of sshd(8). - AuthorizedKeysFile may contain tokens of the form %T which are - substituted during connection setup. The following tokens are - defined: %% is replaced by a literal '%', %h is replaced by the - home directory of the user being authenticated, and %u is - replaced by the username of that user. After expansion, - AuthorizedKeysFile is taken to be an absolute path or one - relative to the user's home directory. Multiple files may be - listed, separated by whitespace. The default is - M-bM-^@M-^\.ssh/authorized_keys .ssh/authorized_keys2M-bM-^@M-^]. - - AuthorizedPrincipalsCommand - Specifies a program to be used to generate the list of allowed - certificate principals as per AuthorizedPrincipalsFile. The - program must be owned by root, not writable by group or others - and specified by an absolute path. - - Arguments to AuthorizedPrincipalsCommand may be provided using - the following tokens, which will be expanded at runtime: %% is - replaced by a literal '%', %u is replaced by the username being - authenticated and %h is replaced by the home directory of the - user being authenticated. - - The program should produce on standard output zero or more lines - of AuthorizedPrincipalsFile output. If either - AuthorizedPrincipalsCommand or AuthorizedPrincipalsFile is - specified, then certificates offered by the client for - authentication must contain a principal that is listed. By - default, no AuthorizedPrincipalsCommand is run. - - AuthorizedPrincipalsCommandUser - Specifies the user under whose account the - AuthorizedPrincipalsCommand is run. It is recommended to use a - dedicated user that has no other role on the host than running - authorized principals commands. If AuthorizedPrincipalsCommand - is specified but AuthorizedPrincipalsCommandUser is not, then - sshd(8) will refuse to start. - - AuthorizedPrincipalsFile - Specifies a file that lists principal names that are accepted for - certificate authentication. When using certificates signed by a - key listed in TrustedUserCAKeys, this file lists names, one of - which must appear in the certificate for it to be accepted for - authentication. Names are listed one per line preceded by key - options (as described in AUTHORIZED_KEYS FILE FORMAT in sshd(8)). - Empty lines and comments starting with M-bM-^@M-^X#M-bM-^@M-^Y are ignored. - - AuthorizedPrincipalsFile may contain tokens of the form %T which - are substituted during connection setup. The following tokens - are defined: %% is replaced by a literal '%', %h is replaced by - the home directory of the user being authenticated, and %u is - replaced by the username of that user. After expansion, - AuthorizedPrincipalsFile is taken to be an absolute path or one - relative to the user's home directory. - - The default is M-bM-^@M-^\noneM-bM-^@M-^], i.e. not to use a principals file M-bM-^@M-^S in - this case, the username of the user must appear in a - certificate's principals list for it to be accepted. Note that - AuthorizedPrincipalsFile is only used when authentication - proceeds using a CA listed in TrustedUserCAKeys and is not - consulted for certification authorities trusted via - ~/.ssh/authorized_keys, though the principals= key option offers - a similar facility (see sshd(8) for details). - - Banner The contents of the specified file are sent to the remote user - before authentication is allowed. If the argument is M-bM-^@M-^\noneM-bM-^@M-^] then - no banner is displayed. This option is only available for - protocol version 2. By default, no banner is displayed. - - ChallengeResponseAuthentication - Specifies whether challenge-response authentication is allowed - (e.g. via PAM or through authentication styles supported in - login.conf(5)) The default is M-bM-^@M-^\yesM-bM-^@M-^]. - - ChrootDirectory - Specifies the pathname of a directory to chroot(2) to after - authentication. At session startup sshd(8) checks that all - components of the pathname are root-owned directories which are - not writable by any other user or group. After the chroot, - sshd(8) changes the working directory to the user's home - directory. - - The pathname may contain the following tokens that are expanded - at runtime once the connecting user has been authenticated: %% is - replaced by a literal '%', %h is replaced by the home directory - of the user being authenticated, and %u is replaced by the - username of that user. - - The ChrootDirectory must contain the necessary files and - directories to support the user's session. For an interactive - session this requires at least a shell, typically sh(1), and - basic /dev nodes such as null(4), zero(4), stdin(4), stdout(4), - stderr(4), and tty(4) devices. For file transfer sessions using - M-bM-^@M-^\sftpM-bM-^@M-^], no additional configuration of the environment is - necessary if the in-process sftp server is used, though sessions - which use logging may require /dev/log inside the chroot - directory on some operating systems (see sftp-server(8) for - details). - - For safety, it is very important that the directory hierarchy be - prevented from modification by other processes on the system - (especially those outside the jail). Misconfiguration can lead - to unsafe environments which sshd(8) cannot detect. - - The default is not to chroot(2). - - Ciphers - Specifies the ciphers allowed for protocol version 2. Multiple - ciphers must be comma-separated. If the specified value begins - with a M-bM-^@M-^X+M-bM-^@M-^Y character, then the specified ciphers will be appended - to the default set instead of replacing them. - - The supported ciphers are: - - 3des-cbc - aes128-cbc - aes192-cbc - aes256-cbc - aes128-ctr - aes192-ctr - aes256-ctr - aes128-gcm@openssh.com - aes256-gcm@openssh.com - arcfour - arcfour128 - arcfour256 - blowfish-cbc - cast128-cbc - chacha20-poly1305@openssh.com - - The default is: - - aes128-ctr,aes192-ctr,aes256-ctr, - aes128-gcm@openssh.com,aes256-gcm@openssh.com, - chacha20-poly1305@openssh.com - - The list of available ciphers may also be obtained using the -Q - option of ssh(1) with an argument of M-bM-^@M-^\cipherM-bM-^@M-^]. - - ClientAliveCountMax - Sets the number of client alive messages (see below) which may be - sent without sshd(8) receiving any messages back from the client. - If this threshold is reached while client alive messages are - being sent, sshd will disconnect the client, terminating the - session. It is important to note that the use of client alive - messages is very different from TCPKeepAlive (below). The client - alive messages are sent through the encrypted channel and - therefore will not be spoofable. The TCP keepalive option - enabled by TCPKeepAlive is spoofable. The client alive mechanism - is valuable when the client or server depend on knowing when a - connection has become inactive. - - The default value is 3. If ClientAliveInterval (see below) is - set to 15, and ClientAliveCountMax is left at the default, - unresponsive SSH clients will be disconnected after approximately - 45 seconds. This option applies to protocol version 2 only. - - ClientAliveInterval - Sets a timeout interval in seconds after which if no data has - been received from the client, sshd(8) will send a message - through the encrypted channel to request a response from the - client. The default is 0, indicating that these messages will - not be sent to the client. This option applies to protocol - version 2 only. - - Compression - Specifies whether compression is allowed, or delayed until the - user has authenticated successfully. The argument must be M-bM-^@M-^\yesM-bM-^@M-^], - M-bM-^@M-^\delayedM-bM-^@M-^], or M-bM-^@M-^\noM-bM-^@M-^]. The default is M-bM-^@M-^\delayedM-bM-^@M-^]. - - DenyGroups - This keyword can be followed by a list of group name patterns, - separated by spaces. Login is disallowed for users whose primary - group or supplementary group list matches one of the patterns. - Only group names are valid; a numerical group ID is not - recognized. By default, login is allowed for all groups. The - allow/deny directives are processed in the following order: - DenyUsers, AllowUsers, DenyGroups, and finally AllowGroups. - - See PATTERNS in ssh_config(5) for more information on patterns. - - DenyUsers - This keyword can be followed by a list of user name patterns, - separated by spaces. Login is disallowed for user names that - match one of the patterns. Only user names are valid; a - numerical user ID is not recognized. By default, login is - allowed for all users. If the pattern takes the form USER@HOST - then USER and HOST are separately checked, restricting logins to - particular users from particular hosts. The allow/deny - directives are processed in the following order: DenyUsers, - AllowUsers, DenyGroups, and finally AllowGroups. - - See PATTERNS in ssh_config(5) for more information on patterns. - - FingerprintHash - Specifies the hash algorithm used when logging key fingerprints. - Valid options are: M-bM-^@M-^\md5M-bM-^@M-^] and M-bM-^@M-^\sha256M-bM-^@M-^]. The default is M-bM-^@M-^\sha256M-bM-^@M-^]. - - ForceCommand - Forces the execution of the command specified by ForceCommand, - ignoring any command supplied by the client and ~/.ssh/rc if - present. The command is invoked by using the user's login shell - with the -c option. This applies to shell, command, or subsystem - execution. It is most useful inside a Match block. The command - originally supplied by the client is available in the - SSH_ORIGINAL_COMMAND environment variable. Specifying a command - of M-bM-^@M-^\internal-sftpM-bM-^@M-^] will force the use of an in-process sftp - server that requires no support files when used with - ChrootDirectory. - - GatewayPorts - Specifies whether remote hosts are allowed to connect to ports - forwarded for the client. By default, sshd(8) binds remote port - forwardings to the loopback address. This prevents other remote - hosts from connecting to forwarded ports. GatewayPorts can be - used to specify that sshd should allow remote port forwardings to - bind to non-loopback addresses, thus allowing other hosts to - connect. The argument may be M-bM-^@M-^\noM-bM-^@M-^] to force remote port - forwardings to be available to the local host only, M-bM-^@M-^\yesM-bM-^@M-^] to - force remote port forwardings to bind to the wildcard address, or - M-bM-^@M-^\clientspecifiedM-bM-^@M-^] to allow the client to select the address to - which the forwarding is bound. The default is M-bM-^@M-^\noM-bM-^@M-^]. - - GSSAPIAuthentication - Specifies whether user authentication based on GSSAPI is allowed. - The default is M-bM-^@M-^\noM-bM-^@M-^]. Note that this option applies to protocol - version 2 only. - - GSSAPICleanupCredentials - Specifies whether to automatically destroy the user's credentials - cache on logout. The default is M-bM-^@M-^\yesM-bM-^@M-^]. Note that this option - applies to protocol version 2 only. - - GSSAPIStrictAcceptorCheck - Determines whether to be strict about the identity of the GSSAPI - acceptor a client authenticates against. If set to M-bM-^@M-^\yesM-bM-^@M-^] then - the client must authenticate against the host service on the - current hostname. If set to M-bM-^@M-^\noM-bM-^@M-^] then the client may - authenticate against any service key stored in the machine's - default store. This facility is provided to assist with - operation on multi homed machines. The default is M-bM-^@M-^\yesM-bM-^@M-^]. - - HostbasedAcceptedKeyTypes - Specifies the key types that will be accepted for hostbased - authentication as a comma-separated pattern list. Alternately if - the specified value begins with a M-bM-^@M-^X+M-bM-^@M-^Y character, then the - specified key types will be appended to the default set instead - of replacing them. The default for this option is: - - ecdsa-sha2-nistp256-cert-v01@openssh.com, - ecdsa-sha2-nistp384-cert-v01@openssh.com, - ecdsa-sha2-nistp521-cert-v01@openssh.com, - ssh-ed25519-cert-v01@openssh.com, - ssh-rsa-cert-v01@openssh.com, - ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521, - ssh-ed25519,ssh-rsa - - The -Q option of ssh(1) may be used to list supported key types. - - HostbasedAuthentication - Specifies whether rhosts or /etc/hosts.equiv authentication - together with successful public key client host authentication is - allowed (host-based authentication). This option is similar to - RhostsRSAAuthentication and applies to protocol version 2 only. - The default is M-bM-^@M-^\noM-bM-^@M-^]. - - HostbasedUsesNameFromPacketOnly - Specifies whether or not the server will attempt to perform a - reverse name lookup when matching the name in the ~/.shosts, - ~/.rhosts, and /etc/hosts.equiv files during - HostbasedAuthentication. A setting of M-bM-^@M-^\yesM-bM-^@M-^] means that sshd(8) - uses the name supplied by the client rather than attempting to - resolve the name from the TCP connection itself. The default is - M-bM-^@M-^\noM-bM-^@M-^]. - - HostCertificate - Specifies a file containing a public host certificate. The - certificate's public key must match a private host key already - specified by HostKey. The default behaviour of sshd(8) is not to - load any certificates. - - HostKey - Specifies a file containing a private host key used by SSH. The - default is /etc/ssh/ssh_host_key for protocol version 1, and - /etc/ssh/ssh_host_dsa_key, /etc/ssh/ssh_host_ecdsa_key, - /etc/ssh/ssh_host_ed25519_key and /etc/ssh/ssh_host_rsa_key for - protocol version 2. - - Note that sshd(8) will refuse to use a file if it is group/world- - accessible and that the HostKeyAlgorithms option restricts which - of the keys are actually used by sshd(8). - - It is possible to have multiple host key files. M-bM-^@M-^\rsa1M-bM-^@M-^] keys are - used for version 1 and M-bM-^@M-^\dsaM-bM-^@M-^], M-bM-^@M-^\ecdsaM-bM-^@M-^], M-bM-^@M-^\ed25519M-bM-^@M-^] or M-bM-^@M-^\rsaM-bM-^@M-^] are - used for version 2 of the SSH protocol. It is also possible to - specify public host key files instead. In this case operations - on the private key will be delegated to an ssh-agent(1). - - HostKeyAgent - Identifies the UNIX-domain socket used to communicate with an - agent that has access to the private host keys. If - M-bM-^@M-^\SSH_AUTH_SOCKM-bM-^@M-^] is specified, the location of the socket will be - read from the SSH_AUTH_SOCK environment variable. - - HostKeyAlgorithms - Specifies the protocol version 2 host key algorithms that the - server offers. The default for this option is: - - ecdsa-sha2-nistp256-cert-v01@openssh.com, - ecdsa-sha2-nistp384-cert-v01@openssh.com, - ecdsa-sha2-nistp521-cert-v01@openssh.com, - ssh-ed25519-cert-v01@openssh.com, - ssh-rsa-cert-v01@openssh.com, - ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521, - ssh-ed25519,ssh-rsa - - The list of available key types may also be obtained using the -Q - option of ssh(1) with an argument of M-bM-^@M-^\keyM-bM-^@M-^]. - - IgnoreRhosts - Specifies that .rhosts and .shosts files will not be used in - RhostsRSAAuthentication or HostbasedAuthentication. - - /etc/hosts.equiv and /etc/shosts.equiv are still used. The - default is M-bM-^@M-^\yesM-bM-^@M-^]. - - IgnoreUserKnownHosts - Specifies whether sshd(8) should ignore the user's - ~/.ssh/known_hosts during RhostsRSAAuthentication or - HostbasedAuthentication. The default is M-bM-^@M-^\noM-bM-^@M-^]. - - IPQoS Specifies the IPv4 type-of-service or DSCP class for the - connection. Accepted values are M-bM-^@M-^\af11M-bM-^@M-^], M-bM-^@M-^\af12M-bM-^@M-^], M-bM-^@M-^\af13M-bM-^@M-^], M-bM-^@M-^\af21M-bM-^@M-^], - M-bM-^@M-^\af22M-bM-^@M-^], M-bM-^@M-^\af23M-bM-^@M-^], M-bM-^@M-^\af31M-bM-^@M-^], M-bM-^@M-^\af32M-bM-^@M-^], M-bM-^@M-^\af33M-bM-^@M-^], M-bM-^@M-^\af41M-bM-^@M-^], M-bM-^@M-^\af42M-bM-^@M-^], M-bM-^@M-^\af43M-bM-^@M-^], - M-bM-^@M-^\cs0M-bM-^@M-^], M-bM-^@M-^\cs1M-bM-^@M-^], M-bM-^@M-^\cs2M-bM-^@M-^], M-bM-^@M-^\cs3M-bM-^@M-^], M-bM-^@M-^\cs4M-bM-^@M-^], M-bM-^@M-^\cs5M-bM-^@M-^], M-bM-^@M-^\cs6M-bM-^@M-^], M-bM-^@M-^\cs7M-bM-^@M-^], M-bM-^@M-^\efM-bM-^@M-^], - M-bM-^@M-^\lowdelayM-bM-^@M-^], M-bM-^@M-^\throughputM-bM-^@M-^], M-bM-^@M-^\reliabilityM-bM-^@M-^], or a numeric value. - This option may take one or two arguments, separated by - whitespace. If one argument is specified, it is used as the - packet class unconditionally. If two values are specified, the - first is automatically selected for interactive sessions and the - second for non-interactive sessions. The default is M-bM-^@M-^\lowdelayM-bM-^@M-^] - for interactive sessions and M-bM-^@M-^\throughputM-bM-^@M-^] for non-interactive - sessions. - - KbdInteractiveAuthentication - Specifies whether to allow keyboard-interactive authentication. - The argument to this keyword must be M-bM-^@M-^\yesM-bM-^@M-^] or M-bM-^@M-^\noM-bM-^@M-^]. The default - is to use whatever value ChallengeResponseAuthentication is set - to (by default M-bM-^@M-^\yesM-bM-^@M-^]). - - KerberosAuthentication - Specifies whether the password provided by the user for - PasswordAuthentication will be validated through the Kerberos - KDC. To use this option, the server needs a Kerberos servtab - which allows the verification of the KDC's identity. The default - is M-bM-^@M-^\noM-bM-^@M-^]. - - KerberosGetAFSToken - If AFS is active and the user has a Kerberos 5 TGT, attempt to - acquire an AFS token before accessing the user's home directory. - The default is M-bM-^@M-^\noM-bM-^@M-^]. - - KerberosOrLocalPasswd - If password authentication through Kerberos fails then the - password will be validated via any additional local mechanism - such as /etc/passwd. The default is M-bM-^@M-^\yesM-bM-^@M-^]. - - KerberosTicketCleanup - Specifies whether to automatically destroy the user's ticket - cache file on logout. The default is M-bM-^@M-^\yesM-bM-^@M-^]. - - KexAlgorithms - Specifies the available KEX (Key Exchange) algorithms. Multiple - algorithms must be comma-separated. Alternately if the specified - value begins with a M-bM-^@M-^X+M-bM-^@M-^Y character, then the specified methods - will be appended to the default set instead of replacing them. - The supported algorithms are: - - curve25519-sha256@libssh.org - diffie-hellman-group1-sha1 - diffie-hellman-group14-sha1 - diffie-hellman-group-exchange-sha1 - diffie-hellman-group-exchange-sha256 - ecdh-sha2-nistp256 - ecdh-sha2-nistp384 - ecdh-sha2-nistp521 - - The default is: - - curve25519-sha256@libssh.org, - ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521, - diffie-hellman-group-exchange-sha256, - diffie-hellman-group14-sha1 - - The list of available key exchange algorithms may also be - obtained using the -Q option of ssh(1) with an argument of M-bM-^@M-^\kexM-bM-^@M-^]. - - KeyRegenerationInterval - In protocol version 1, the ephemeral server key is automatically - regenerated after this many seconds (if it has been used). The - purpose of regeneration is to prevent decrypting captured - sessions by later breaking into the machine and stealing the - keys. The key is never stored anywhere. If the value is 0, the - key is never regenerated. The default is 3600 (seconds). - - ListenAddress - Specifies the local addresses sshd(8) should listen on. The - following forms may be used: - - ListenAddress host|IPv4_addr|IPv6_addr - ListenAddress host|IPv4_addr:port - ListenAddress [host|IPv6_addr]:port - - If port is not specified, sshd will listen on the address and all - Port options specified. The default is to listen on all local - addresses. Multiple ListenAddress options are permitted. - - LoginGraceTime - The server disconnects after this time if the user has not - successfully logged in. If the value is 0, there is no time - limit. The default is 120 seconds. - - LogLevel - Gives the verbosity level that is used when logging messages from - sshd(8). The possible values are: QUIET, FATAL, ERROR, INFO, - VERBOSE, DEBUG, DEBUG1, DEBUG2, and DEBUG3. The default is INFO. - DEBUG and DEBUG1 are equivalent. DEBUG2 and DEBUG3 each specify - higher levels of debugging output. Logging with a DEBUG level - violates the privacy of users and is not recommended. - - MACs Specifies the available MAC (message authentication code) - algorithms. The MAC algorithm is used in protocol version 2 for - data integrity protection. Multiple algorithms must be comma- - separated. If the specified value begins with a M-bM-^@M-^X+M-bM-^@M-^Y character, - then the specified algorithms will be appended to the default set - instead of replacing them. - - The algorithms that contain M-bM-^@M-^\-etmM-bM-^@M-^] calculate the MAC after - encryption (encrypt-then-mac). These are considered safer and - their use recommended. The supported MACs are: - - hmac-md5 - hmac-md5-96 - hmac-ripemd160 - hmac-sha1 - hmac-sha1-96 - hmac-sha2-256 - hmac-sha2-512 - umac-64@openssh.com - umac-128@openssh.com - hmac-md5-etm@openssh.com - hmac-md5-96-etm@openssh.com - hmac-ripemd160-etm@openssh.com - hmac-sha1-etm@openssh.com - hmac-sha1-96-etm@openssh.com - hmac-sha2-256-etm@openssh.com - hmac-sha2-512-etm@openssh.com - umac-64-etm@openssh.com - umac-128-etm@openssh.com - - The default is: - - umac-64-etm@openssh.com,umac-128-etm@openssh.com, - hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com, - umac-64@openssh.com,umac-128@openssh.com, - hmac-sha2-256,hmac-sha2-512 - - The list of available MAC algorithms may also be obtained using - the -Q option of ssh(1) with an argument of M-bM-^@M-^\macM-bM-^@M-^]. - - Match Introduces a conditional block. If all of the criteria on the - Match line are satisfied, the keywords on the following lines - override those set in the global section of the config file, - until either another Match line or the end of the file. If a - keyword appears in multiple Match blocks that are satisfied, only - the first instance of the keyword is applied. - - The arguments to Match are one or more criteria-pattern pairs or - the single token All which matches all criteria. The available - criteria are User, Group, Host, LocalAddress, LocalPort, and - Address. The match patterns may consist of single entries or - comma-separated lists and may use the wildcard and negation - operators described in the PATTERNS section of ssh_config(5). - - The patterns in an Address criteria may additionally contain - addresses to match in CIDR address/masklen format, e.g. - M-bM-^@M-^\192.0.2.0/24M-bM-^@M-^] or M-bM-^@M-^\3ffe:ffff::/32M-bM-^@M-^]. Note that the mask length - provided must be consistent with the address - it is an error to - specify a mask length that is too long for the address or one - with bits set in this host portion of the address. For example, - M-bM-^@M-^\192.0.2.0/33M-bM-^@M-^] and M-bM-^@M-^\192.0.2.0/8M-bM-^@M-^] respectively. - - Only a subset of keywords may be used on the lines following a - Match keyword. Available keywords are AcceptEnv, - AllowAgentForwarding, AllowGroups, AllowStreamLocalForwarding, - AllowTcpForwarding, AllowUsers, AuthenticationMethods, - AuthorizedKeysCommand, AuthorizedKeysCommandUser, - AuthorizedKeysFile, AuthorizedPrincipalsFile, Banner, - ChrootDirectory, DenyGroups, DenyUsers, ForceCommand, - GatewayPorts, GSSAPIAuthentication, HostbasedAcceptedKeyTypes, - HostbasedAuthentication, HostbasedUsesNameFromPacketOnly, IPQoS, - KbdInteractiveAuthentication, KerberosAuthentication, - MaxAuthTries, MaxSessions, PasswordAuthentication, - PermitEmptyPasswords, PermitOpen, PermitRootLogin, PermitTTY, - PermitTunnel, PermitUserRC, PubkeyAcceptedKeyTypes, - PubkeyAuthentication, RekeyLimit, RevokedKeys, - RhostsRSAAuthentication, RSAAuthentication, StreamLocalBindMask, - StreamLocalBindUnlink, TrustedUserCAKeys, X11DisplayOffset, - X11Forwarding and X11UseLocalHost. - - MaxAuthTries - Specifies the maximum number of authentication attempts permitted - per connection. Once the number of failures reaches half this - value, additional failures are logged. The default is 6. - - MaxSessions - Specifies the maximum number of open sessions permitted per - network connection. The default is 10. - - MaxStartups - Specifies the maximum number of concurrent unauthenticated - connections to the SSH daemon. Additional connections will be - dropped until authentication succeeds or the LoginGraceTime - expires for a connection. The default is 10:30:100. - - Alternatively, random early drop can be enabled by specifying the - three colon separated values M-bM-^@M-^\start:rate:fullM-bM-^@M-^] (e.g. "10:30:60"). - sshd(8) will refuse connection attempts with a probability of - M-bM-^@M-^\rate/100M-bM-^@M-^] (30%) if there are currently M-bM-^@M-^\startM-bM-^@M-^] (10) - unauthenticated connections. The probability increases linearly - and all connection attempts are refused if the number of - unauthenticated connections reaches M-bM-^@M-^\fullM-bM-^@M-^] (60). - - PasswordAuthentication - Specifies whether password authentication is allowed. The - default is M-bM-^@M-^\yesM-bM-^@M-^]. - - PermitEmptyPasswords - When password authentication is allowed, it specifies whether the - server allows login to accounts with empty password strings. The - default is M-bM-^@M-^\noM-bM-^@M-^]. - - PermitOpen - Specifies the destinations to which TCP port forwarding is - permitted. The forwarding specification must be one of the - following forms: - - PermitOpen host:port - PermitOpen IPv4_addr:port - PermitOpen [IPv6_addr]:port - - Multiple forwards may be specified by separating them with - whitespace. An argument of M-bM-^@M-^\anyM-bM-^@M-^] can be used to remove all - restrictions and permit any forwarding requests. An argument of - M-bM-^@M-^\noneM-bM-^@M-^] can be used to prohibit all forwarding requests. By - default all port forwarding requests are permitted. - - PermitRootLogin - Specifies whether root can log in using ssh(1). The argument - must be M-bM-^@M-^\yesM-bM-^@M-^], M-bM-^@M-^\prohibit-passwordM-bM-^@M-^], M-bM-^@M-^\without-passwordM-bM-^@M-^], - M-bM-^@M-^\forced-commands-onlyM-bM-^@M-^], or M-bM-^@M-^\noM-bM-^@M-^]. The default is - M-bM-^@M-^\prohibit-passwordM-bM-^@M-^]. - - If this option is set to M-bM-^@M-^\prohibit-passwordM-bM-^@M-^] or - M-bM-^@M-^\without-passwordM-bM-^@M-^], password and keyboard-interactive - authentication are disabled for root. - - If this option is set to M-bM-^@M-^\forced-commands-onlyM-bM-^@M-^], root login with - public key authentication will be allowed, but only if the - command option has been specified (which may be useful for taking - remote backups even if root login is normally not allowed). All - other authentication methods are disabled for root. - - If this option is set to M-bM-^@M-^\noM-bM-^@M-^], root is not allowed to log in. - - PermitTunnel - Specifies whether tun(4) device forwarding is allowed. The - argument must be M-bM-^@M-^\yesM-bM-^@M-^], M-bM-^@M-^\point-to-pointM-bM-^@M-^] (layer 3), M-bM-^@M-^\ethernetM-bM-^@M-^] - (layer 2), or M-bM-^@M-^\noM-bM-^@M-^]. Specifying M-bM-^@M-^\yesM-bM-^@M-^] permits both - M-bM-^@M-^\point-to-pointM-bM-^@M-^] and M-bM-^@M-^\ethernetM-bM-^@M-^]. The default is M-bM-^@M-^\noM-bM-^@M-^]. - - Independent of this setting, the permissions of the selected - tun(4) device must allow access to the user. - - PermitTTY - Specifies whether pty(4) allocation is permitted. The default is - M-bM-^@M-^\yesM-bM-^@M-^]. - - PermitUserEnvironment - Specifies whether ~/.ssh/environment and environment= options in - ~/.ssh/authorized_keys are processed by sshd(8). The default is - M-bM-^@M-^\noM-bM-^@M-^]. Enabling environment processing may enable users to bypass - access restrictions in some configurations using mechanisms such - as LD_PRELOAD. - - PermitUserRC - Specifies whether any ~/.ssh/rc file is executed. The default is - M-bM-^@M-^\yesM-bM-^@M-^]. - - PidFile - Specifies the file that contains the process ID of the SSH - daemon, or M-bM-^@M-^\noneM-bM-^@M-^] to not write one. The default is - /var/run/sshd.pid. - - Port Specifies the port number that sshd(8) listens on. The default - is 22. Multiple options of this type are permitted. See also - ListenAddress. - - PrintLastLog - Specifies whether sshd(8) should print the date and time of the - last user login when a user logs in interactively. The default - is M-bM-^@M-^\yesM-bM-^@M-^]. - - PrintMotd - Specifies whether sshd(8) should print /etc/motd when a user logs - in interactively. (On some systems it is also printed by the - shell, /etc/profile, or equivalent.) The default is M-bM-^@M-^\yesM-bM-^@M-^]. - - Protocol - Specifies the protocol versions sshd(8) supports. The possible - values are M-bM-^@M-^X1M-bM-^@M-^Y and M-bM-^@M-^X2M-bM-^@M-^Y. Multiple versions must be comma- - separated. The default is M-bM-^@M-^X2M-bM-^@M-^Y. Note that the order of the - protocol list does not indicate preference, because the client - selects among multiple protocol versions offered by the server. - Specifying M-bM-^@M-^\2,1M-bM-^@M-^] is identical to M-bM-^@M-^\1,2M-bM-^@M-^]. - - PubkeyAcceptedKeyTypes - Specifies the key types that will be accepted for public key - authentication as a comma-separated pattern list. Alternately if - the specified value begins with a M-bM-^@M-^X+M-bM-^@M-^Y character, then the - specified key types will be appended to the default set instead - of replacing them. The default for this option is: - - ecdsa-sha2-nistp256-cert-v01@openssh.com, - ecdsa-sha2-nistp384-cert-v01@openssh.com, - ecdsa-sha2-nistp521-cert-v01@openssh.com, - ssh-ed25519-cert-v01@openssh.com, - ssh-rsa-cert-v01@openssh.com, - ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521, - ssh-ed25519,ssh-rsa - - The -Q option of ssh(1) may be used to list supported key types. - - PubkeyAuthentication - Specifies whether public key authentication is allowed. The - default is M-bM-^@M-^\yesM-bM-^@M-^]. Note that this option applies to protocol - version 2 only. - - RekeyLimit - Specifies the maximum amount of data that may be transmitted - before the session key is renegotiated, optionally followed a - maximum amount of time that may pass before the session key is - renegotiated. The first argument is specified in bytes and may - have a suffix of M-bM-^@M-^XKM-bM-^@M-^Y, M-bM-^@M-^XMM-bM-^@M-^Y, or M-bM-^@M-^XGM-bM-^@M-^Y to indicate Kilobytes, - Megabytes, or Gigabytes, respectively. The default is between - M-bM-^@M-^X1GM-bM-^@M-^Y and M-bM-^@M-^X4GM-bM-^@M-^Y, depending on the cipher. The optional second - value is specified in seconds and may use any of the units - documented in the TIME FORMATS section. The default value for - RekeyLimit is M-bM-^@M-^\default noneM-bM-^@M-^], which means that rekeying is - performed after the cipher's default amount of data has been sent - or received and no time based rekeying is done. This option - applies to protocol version 2 only. - - RevokedKeys - Specifies revoked public keys file, or M-bM-^@M-^\noneM-bM-^@M-^] to not use one. - Keys listed in this file will be refused for public key - authentication. Note that if this file is not readable, then - public key authentication will be refused for all users. Keys - may be specified as a text file, listing one public key per line, - or as an OpenSSH Key Revocation List (KRL) as generated by - ssh-keygen(1). For more information on KRLs, see the KEY - REVOCATION LISTS section in ssh-keygen(1). - - RhostsRSAAuthentication - Specifies whether rhosts or /etc/hosts.equiv authentication - together with successful RSA host authentication is allowed. The - default is M-bM-^@M-^\noM-bM-^@M-^]. This option applies to protocol version 1 only. - - RSAAuthentication - Specifies whether pure RSA authentication is allowed. The - default is M-bM-^@M-^\yesM-bM-^@M-^]. This option applies to protocol version 1 - only. - - ServerKeyBits - Defines the number of bits in the ephemeral protocol version 1 - server key. The default and minimum value is 1024. - - StreamLocalBindMask - Sets the octal file creation mode mask (umask) used when creating - a Unix-domain socket file for local or remote port forwarding. - This option is only used for port forwarding to a Unix-domain - socket file. - - The default value is 0177, which creates a Unix-domain socket - file that is readable and writable only by the owner. Note that - not all operating systems honor the file mode on Unix-domain - socket files. - - StreamLocalBindUnlink - Specifies whether to remove an existing Unix-domain socket file - for local or remote port forwarding before creating a new one. - If the socket file already exists and StreamLocalBindUnlink is - not enabled, sshd will be unable to forward the port to the Unix- - domain socket file. This option is only used for port forwarding - to a Unix-domain socket file. - - The argument must be M-bM-^@M-^\yesM-bM-^@M-^] or M-bM-^@M-^\noM-bM-^@M-^]. The default is M-bM-^@M-^\noM-bM-^@M-^]. - - StrictModes - Specifies whether sshd(8) should check file modes and ownership - of the user's files and home directory before accepting login. - This is normally desirable because novices sometimes accidentally - leave their directory or files world-writable. The default is - M-bM-^@M-^\yesM-bM-^@M-^]. Note that this does not apply to ChrootDirectory, whose - permissions and ownership are checked unconditionally. - - Subsystem - Configures an external subsystem (e.g. file transfer daemon). - Arguments should be a subsystem name and a command (with optional - arguments) to execute upon subsystem request. - - The command sftp-server(8) implements the M-bM-^@M-^\sftpM-bM-^@M-^] file transfer - subsystem. - - Alternately the name M-bM-^@M-^\internal-sftpM-bM-^@M-^] implements an in-process - M-bM-^@M-^\sftpM-bM-^@M-^] server. This may simplify configurations using - ChrootDirectory to force a different filesystem root on clients. - - By default no subsystems are defined. Note that this option - applies to protocol version 2 only. - - SyslogFacility - Gives the facility code that is used when logging messages from - sshd(8). The possible values are: DAEMON, USER, AUTH, LOCAL0, - LOCAL1, LOCAL2, LOCAL3, LOCAL4, LOCAL5, LOCAL6, LOCAL7. The - default is AUTH. - - TCPKeepAlive - Specifies whether the system should send TCP keepalive messages - to the other side. If they are sent, death of the connection or - crash of one of the machines will be properly noticed. However, - this means that connections will die if the route is down - temporarily, and some people find it annoying. On the other - hand, if TCP keepalives are not sent, sessions may hang - indefinitely on the server, leaving M-bM-^@M-^\ghostM-bM-^@M-^] users and consuming - server resources. - - The default is M-bM-^@M-^\yesM-bM-^@M-^] (to send TCP keepalive messages), and the - server will notice if the network goes down or the client host - crashes. This avoids infinitely hanging sessions. - - To disable TCP keepalive messages, the value should be set to - M-bM-^@M-^\noM-bM-^@M-^]. - - TrustedUserCAKeys - Specifies a file containing public keys of certificate - authorities that are trusted to sign user certificates for - authentication, or M-bM-^@M-^\noneM-bM-^@M-^] to not use one. Keys are listed one - per line; empty lines and comments starting with M-bM-^@M-^X#M-bM-^@M-^Y are allowed. - If a certificate is presented for authentication and has its - signing CA key listed in this file, then it may be used for - authentication for any user listed in the certificate's - principals list. Note that certificates that lack a list of - principals will not be permitted for authentication using - TrustedUserCAKeys. For more details on certificates, see the - CERTIFICATES section in ssh-keygen(1). - - UseDNS Specifies whether sshd(8) should look up the remote host name, - and to check that the resolved host name for the remote IP - address maps back to the very same IP address. - - If this option is set to M-bM-^@M-^\noM-bM-^@M-^] (the default) then only addresses - and not host names may be used in ~/.ssh/known_hosts from and - sshd_config(5) Match Host directives. - - UseLogin - Specifies whether login(1) is used for interactive login - sessions. The default is M-bM-^@M-^\noM-bM-^@M-^]. Note that login(1) is never used - for remote command execution. Note also, that if this is - enabled, X11Forwarding will be disabled because login(1) does not - know how to handle xauth(1) cookies. If UsePrivilegeSeparation - is specified, it will be disabled after authentication. - - UsePAM Enables the Pluggable Authentication Module interface. If set to - M-bM-^@M-^\yesM-bM-^@M-^] this will enable PAM authentication using - ChallengeResponseAuthentication and PasswordAuthentication in - addition to PAM account and session module processing for all - authentication types. - - Because PAM challenge-response authentication usually serves an - equivalent role to password authentication, you should disable - either PasswordAuthentication or ChallengeResponseAuthentication. - - If UsePAM is enabled, you will not be able to run sshd(8) as a - non-root user. The default is M-bM-^@M-^\noM-bM-^@M-^]. - - UsePrivilegeSeparation - Specifies whether sshd(8) separates privileges by creating an - unprivileged child process to deal with incoming network traffic. - After successful authentication, another process will be created - that has the privilege of the authenticated user. The goal of - privilege separation is to prevent privilege escalation by - containing any corruption within the unprivileged processes. The - default is M-bM-^@M-^\yesM-bM-^@M-^]. If UsePrivilegeSeparation is set to M-bM-^@M-^\sandboxM-bM-^@M-^] - then the pre-authentication unprivileged process is subject to - additional restrictions. - - VersionAddendum - Optionally specifies additional text to append to the SSH - protocol banner sent by the server upon connection. The default - is M-bM-^@M-^\noneM-bM-^@M-^]. - - X11DisplayOffset - Specifies the first display number available for sshd(8)'s X11 - forwarding. This prevents sshd from interfering with real X11 - servers. The default is 10. - - X11Forwarding - Specifies whether X11 forwarding is permitted. The argument must - be M-bM-^@M-^\yesM-bM-^@M-^] or M-bM-^@M-^\noM-bM-^@M-^]. The default is M-bM-^@M-^\noM-bM-^@M-^]. - - When X11 forwarding is enabled, there may be additional exposure - to the server and to client displays if the sshd(8) proxy display - is configured to listen on the wildcard address (see - X11UseLocalhost below), though this is not the default. - Additionally, the authentication spoofing and authentication data - verification and substitution occur on the client side. The - security risk of using X11 forwarding is that the client's X11 - display server may be exposed to attack when the SSH client - requests forwarding (see the warnings for ForwardX11 in - ssh_config(5)). A system administrator may have a stance in - which they want to protect clients that may expose themselves to - attack by unwittingly requesting X11 forwarding, which can - warrant a M-bM-^@M-^\noM-bM-^@M-^] setting. - - Note that disabling X11 forwarding does not prevent users from - forwarding X11 traffic, as users can always install their own - forwarders. X11 forwarding is automatically disabled if UseLogin - is enabled. - - X11UseLocalhost - Specifies whether sshd(8) should bind the X11 forwarding server - to the loopback address or to the wildcard address. By default, - sshd binds the forwarding server to the loopback address and sets - the hostname part of the DISPLAY environment variable to - M-bM-^@M-^\localhostM-bM-^@M-^]. This prevents remote hosts from connecting to the - proxy display. However, some older X11 clients may not function - with this configuration. X11UseLocalhost may be set to M-bM-^@M-^\noM-bM-^@M-^] to - specify that the forwarding server should be bound to the - wildcard address. The argument must be M-bM-^@M-^\yesM-bM-^@M-^] or M-bM-^@M-^\noM-bM-^@M-^]. The - default is M-bM-^@M-^\yesM-bM-^@M-^]. - - XAuthLocation - Specifies the full pathname of the xauth(1) program, or M-bM-^@M-^\noneM-bM-^@M-^] to - not use one. The default is /usr/X11R6/bin/xauth. - -TIME FORMATS - sshd(8) command-line arguments and configuration file options that - specify time may be expressed using a sequence of the form: - time[qualifier], where time is a positive integer value and qualifier is - one of the following: - - M-bM-^_M-(noneM-bM-^_M-) seconds - s | S seconds - m | M minutes - h | H hours - d | D days - w | W weeks - - Each member of the sequence is added together to calculate the total time - value. - - Time format examples: - - 600 600 seconds (10 minutes) - 10m 10 minutes - 1h30m 1 hour 30 minutes (90 minutes) - -FILES - /etc/ssh/sshd_config - Contains configuration data for sshd(8). This file should be - writable by root only, but it is recommended (though not - necessary) that it be world-readable. - -SEE ALSO - sshd(8) - -AUTHORS - OpenSSH is a derivative of the original and free ssh 1.2.12 release by - Tatu Ylonen. Aaron Campbell, Bob Beck, Markus Friedl, Niels Provos, Theo - de Raadt and Dug Song removed many bugs, re-added newer features and - created OpenSSH. Markus Friedl contributed the support for SSH protocol - versions 1.5 and 2.0. Niels Provos and Markus Friedl contributed support - for privilege separation. - -OpenBSD 5.8 August 6, 2015 OpenBSD 5.8 -- cgit v1.1