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-.\" Copyright (c) 1989, 1991, 1993
-.\" The Regents of the University of California. All rights reserved.
-.\"
-.\" Redistribution and use in source and binary forms, with or without
-.\" modification, are permitted provided that the following conditions
-.\" are met:
-.\" 1. Redistributions of source code must retain the above copyright
-.\" notice, this list of conditions and the following disclaimer.
-.\" 2. Redistributions in binary form must reproduce the above copyright
-.\" notice, this list of conditions and the following disclaimer in the
-.\" documentation and/or other materials provided with the distribution.
-.\" 4. Neither the name of the University nor the names of its contributors
-.\" may be used to endorse or promote products derived from this software
-.\" without specific prior written permission.
-.\"
-.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
-.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
-.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
-.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
-.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
-.\" SUCH DAMAGE.
-.\"
-.\" @(#)nfsd.8 8.4 (Berkeley) 3/29/95
-.\" $FreeBSD$
-.\"
-.Dd March 29, 1995
-.Dt NFSD 8
-.Os
-.Sh NAME
-.Nm nfsd
-.Nd remote
-.Tn NFS
-server
-.Sh SYNOPSIS
-.Nm
-.Op Fl ardute
-.Op Fl n Ar num_servers
-.Op Fl h Ar bindip
-.Sh DESCRIPTION
-The
-.Nm
-utility runs on a server machine to service
-.Tn NFS
-requests from client machines.
-At least one
-.Nm
-must be running for a machine to operate as a server.
-.Pp
-Unless otherwise specified, four servers for
-.Tn UDP
-transport are started.
-.Pp
-The following options are available:
-.Bl -tag -width Ds
-.It Fl r
-Register the
-.Tn NFS
-service with
-.Xr rpcbind 8
-without creating any servers.
-This option can be used along with the
-.Fl u
-or
-.Fl t
-options to re-register NFS if the rpcbind server is restarted.
-.It Fl d
-Unregister the
-.Tn NFS
-service with
-.Xr rpcbind 8
-without creating any servers.
-.It Fl n
-Specifies how many servers to create.
-.It Fl h Ar bindip
-Specifies which IP address or hostname to bind to on the local host.
-This option is recommended when a host has multiple interfaces.
-Multiple
-.Fl h
-options may be specified.
-.It Fl a
-Specifies that nfsd should bind to the wildcard IP address.
-This is the default if no
-.Fl h
-options are given.
-It may also be specified in addition to any
-.Fl h
-options given.
-Note that NFS/UDP does not operate properly when
-bound to the wildcard IP address whether you use -a or do not use -h.
-.It Fl t
-Serve
-.Tn TCP NFS
-clients.
-.It Fl u
-Serve
-.Tn UDP NFS
-clients.
-.It Fl e
-Forces
-.Nm
-to try and start the experimental server that includes NFSv4 support in it.
-If this flag isn't specified, the experimental server will only be started
-if it is linked into the kernel and the regular one isn't.
-.br
-ie. The kernel is built with the following:
-.Bd -literal -offset indent -compact
-# options NFSSERVER
-options NFSD
-.Ed
-.El
-.Pp
-For example,
-.Dq Li "nfsd -u -t -n 6"
-serves
-.Tn UDP
-and
-.Tn TCP
-transports using six daemons.
-.Pp
-A server should run enough daemons to handle
-the maximum level of concurrency from its clients,
-typically four to six.
-.Pp
-The
-.Nm
-utility listens for service requests at the port indicated in the
-.Tn NFS
-server specification; see
-.%T "Network File System Protocol Specification" ,
-RFC1094,
-.%T "NFS: Network File System Version 3 Protocol Specification" ,
-RFC1813 and
-.%T "Network File System (NFS) Version 4 Protocol" ,
-RFC3530.
-.Pp
-If
-.Nm
-detects that
-.Tn NFS
-is not loaded in the running kernel, it will attempt
-to load a loadable kernel module containing
-.Tn NFS
-support using
-.Xr kldload 2 .
-If this fails, or no
-.Tn NFS
-KLD is available,
-.Nm
-will exit with an error.
-.Pp
-If
-.Nm
-is to be run on a host with multiple interfaces or interface aliases, use
-of the
-.Fl h
-option is recommended.
-If you do not use the option NFS may not respond to
-UDP packets from the same IP address they were sent to.
-Use of this option
-is also recommended when securing NFS exports on a firewalling machine such
-that the NFS sockets can only be accessed by the inside interface.
-The
-.Nm ipfw
-utility
-would then be used to block nfs-related packets that come in on the outside
-interface.
-.Pp
-The
-.Nm
-utility has to be terminated with
-.Dv SIGUSR1
-and cannot be killed with
-.Dv SIGTERM
-or
-.Dv SIGQUIT .
-The
-.Nm
-utility needs to ignore these signals in order to stay alive as long
-as possible during a shutdown, otherwise loopback mounts will
-not be able to unmount.
-If you have to kill
-.Nm
-just do a
-.Dq Li "kill -USR1 <PID of master nfsd>"
-.Sh EXIT STATUS
-.Ex -std
-.Sh SEE ALSO
-.Xr nfsstat 1 ,
-.Xr kldload 2 ,
-.Xr nfssvc 2 ,
-.Xr nfsv4 4 ,
-.Xr exports 5 ,
-.Xr gssd 8 ,
-.Xr ipfw 8 ,
-.Xr mountd 8 ,
-.Xr nfsiod 8 ,
-.Xr nfsrevoke 8 ,
-.Xr nfsuserd 8 ,
-.Xr rpcbind 8
-.Sh HISTORY
-The
-.Nm
-utility first appeared in
-.Bx 4.4 .
-.Sh BUGS
-If
-.Nm
-is started when
-.Xr gssd 8
-is not running, it will service AUTH_SYS requests only. To fix the problem
-you must kill
-.Nm
-and then restart it, after the
-.Xr gssd 8
-is running.
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