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.\" Copyright 1993 Rick Sladkey <jrs@world.std.com>
.\" May be distributed under the GNU General Public License
.TH SHOWMOUNT 8 "6 October 1993"
.SH NAME
showmount \- show mount information for an NFS server
.SH SYNOPSIS
.B showmount
.B "[\ \-adehv\ ]"
.B "[\ \-\-all\ ]"
.B "[\ \-\-directories\ ]"
.B "[\ \-\-exports\ ]"
.B "[\ \-\-help\ ]"
.B "[\ \-\-version\ ]"
.B "[\ host\ ]"
.SH DESCRIPTION
.B showmount
queries the mount daemon on a remote host for information about
the state of the NFS server on that machine. With no options
.B showmount
lists the set of clients who are mounting from that host.
The output from
.B showmount
is designed to
appear as though it were processed through ``sort \-u''.
.SH OPTIONS
.TP
.BR \-a " or " \-\-all
List both the client hostname or IP address and mounted directory in
host:dir format. This info should not be considered reliable. See the notes
on rmtab in
.BR rpc.mountd (8).
.TP
.BR \-d " or " \-\-directories
List only the directories mounted by some client.
.TP
.BR \-e " or " \-\-exports
Show the NFS server's export list.
.TP
.BR \-h " or " \-\-help
Provide a short help summary.
.TP
.BR \-v " or " \-\-version
Report the current version number of the program.
.TP
.B \-\-no\-headers
Suppress the descriptive headings from the output.
.SH "SEE ALSO"
.BR rpc.mountd (8),
.BR rpc.nfsd (8)
.SH BUGS
The completeness and accuracy of the information that
.B showmount
displays varies according to the NFS server's implementation.
.P
Because
.B showmount
sorts and uniqs the output, it is impossible to determine from
the output whether a client is mounting the same directory more than once.
.P
.B showmount
works by contacting the server's MNT service directly. NFSv4-only servers have
no need to advertise their exported root filehandles via this method, and may
not expose their MNT service to clients.
.SH AUTHOR
Rick Sladkey <jrs@world.std.com>
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