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+SFTP-SERVER(8) OpenBSD System Manager's Manual SFTP-SERVER(8)
+
+NAME
+ sftp-server - SFTP server subsystem
+
+SYNOPSIS
+ sftp-server [-ehR] [-d start_directory] [-f log_facility] [-l log_level]
+ [-u umask]
+
+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 '%', %h 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.
+
+ -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.
+
+ For logging to work, sftp-server must be able to access /dev/log. 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 <markus@openbsd.org>
+
+OpenBSD 5.4 July 16, 2013 OpenBSD 5.4
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