161 lines
4.6 KiB
Groff
161 lines
4.6 KiB
Groff
.\" 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.
|
|
.\"
|
|
.\" @(#)mountd.8 8.4 (Berkeley) 4/28/95
|
|
.\" $FreeBSD$
|
|
.\"
|
|
.Dd April 28, 1995
|
|
.Dt MOUNTD 8
|
|
.Os
|
|
.Sh NAME
|
|
.Nm mountd
|
|
.Nd service remote
|
|
.Tn NFS
|
|
mount requests
|
|
.Sh SYNOPSIS
|
|
.Nm
|
|
.Op Fl 2dlnr
|
|
.Op Fl p Ar port
|
|
.Op Ar exportsfile
|
|
.Sh DESCRIPTION
|
|
The
|
|
.Nm
|
|
utility is the server for
|
|
.Tn NFS
|
|
mount requests from other client machines.
|
|
It listens for service requests at the port indicated in the
|
|
.Tn NFS
|
|
server specification; see
|
|
.%T "Network File System Protocol Specification" ,
|
|
RFC1094, Appendix A and
|
|
.%T "NFS: Network File System Version 3 Protocol Specification" ,
|
|
Appendix I.
|
|
.Pp
|
|
The following options are available:
|
|
.Bl -tag -width indent
|
|
.It Fl 2
|
|
Allow the administrator to force clients to use only the
|
|
version 2
|
|
.Tn NFS
|
|
protocol to mount file systems from this server.
|
|
.It Fl d
|
|
Output debugging information.
|
|
.It Fl l
|
|
Cause all succeeded
|
|
.Nm
|
|
requests to be logged.
|
|
.It Fl n
|
|
Allow non-root mount requests to be served.
|
|
This should only be specified if there are clients such as PC's,
|
|
that require it.
|
|
It will automatically clear the vfs.nfsrv.nfs_privport sysctl flag, which
|
|
controls if the kernel will accept NFS requests from reserved ports only.
|
|
.It Fl p Ar port
|
|
Force
|
|
.Nm
|
|
to bind to the specified port, for both
|
|
.Dv AF_INET
|
|
and
|
|
.Dv AF_INET6
|
|
address families.
|
|
This is typically done to ensure that the port which
|
|
.Nm
|
|
binds to is a known quantity which can be used in firewall rulesets.
|
|
If
|
|
.Nm
|
|
cannot bind to this port, an appropriate error will be recorded in
|
|
the system log, and the daemon will then exit.
|
|
.It Fl r
|
|
Allow mount RPCs requests for regular files to be served.
|
|
Although this seems to violate the mount protocol specification,
|
|
some diskless workstations do mount requests for
|
|
their swapfiles and expect them to be regular files.
|
|
Since a regular file cannot be specified in
|
|
.Pa /etc/exports ,
|
|
the entire file system in which the swapfiles resides
|
|
will have to be exported with the
|
|
.Fl alldirs
|
|
flag.
|
|
.It Ar exportsfile
|
|
Specify an alternate location
|
|
for the exports file.
|
|
.El
|
|
.Pp
|
|
When
|
|
.Nm
|
|
is started,
|
|
it loads the export host addresses and options into the kernel
|
|
using the
|
|
.Xr mount 2
|
|
system call.
|
|
After changing the exports file,
|
|
a hangup signal should be sent to the
|
|
.Nm
|
|
daemon
|
|
to get it to reload the export information.
|
|
After sending the SIGHUP
|
|
(kill \-s HUP `cat /var/run/mountd.pid`),
|
|
check the syslog output to see if
|
|
.Nm
|
|
logged any parsing
|
|
errors in the exports file.
|
|
.Pp
|
|
If
|
|
.Nm
|
|
detects that the running kernel does not include
|
|
.Tn NFS
|
|
support, it will attempt to load a loadable kernel module containing
|
|
.Tn NFS
|
|
code, using
|
|
.Xr kldload 2 .
|
|
If this fails, or no
|
|
.Tn NFS
|
|
KLD was available,
|
|
.Nm
|
|
exits with an error.
|
|
.Sh FILES
|
|
.Bl -tag -width /var/run/mountd.pid -compact
|
|
.It Pa /etc/exports
|
|
the list of exported file systems
|
|
.It Pa /var/run/mountd.pid
|
|
the pid of the currently running mountd
|
|
.It Pa /var/db/mountdtab
|
|
the current list of remote mounted file systems
|
|
.El
|
|
.Sh SEE ALSO
|
|
.Xr nfsstat 1 ,
|
|
.Xr kldload 2 ,
|
|
.Xr exports 5 ,
|
|
.Xr nfsd 8 ,
|
|
.Xr rpcbind 8 ,
|
|
.Xr showmount 8
|
|
.Sh HISTORY
|
|
The
|
|
.Nm
|
|
utility first appeared in
|
|
.Bx 4.4 .
|