281 lines
7.0 KiB
Groff
281 lines
7.0 KiB
Groff
.\"
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.\" Copyright (c) 1997-2006 Erez Zadok
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.\" Copyright (c) 1990 Jan-Simon Pendry
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.\" Copyright (c) 1990 Imperial College of Science, Technology & Medicine
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.\" Copyright (c) 1990 The Regents of the University of California.
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.\" All rights reserved.
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.\"
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.\" This code is derived from software contributed to Berkeley by
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.\" Jan-Simon Pendry at Imperial College, London.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgment:
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.\" This product includes software developed by the University of
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.\" California, Berkeley and its contributors.
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.\" 4. Neither the name of the University nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" %W% (Berkeley) %G%
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.\"
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.\" $Id: amq.8,v 1.15.2.1 2006/01/02 18:48:24 ezk Exp $
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.\" $FreeBSD$
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.\"
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.Dd January 2, 2006
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.Dt AMQ 8
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.Os
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.Sh NAME
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.Nm amq
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.Nd automounter query tool
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.Sh SYNOPSIS
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.Nm
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.Op Fl fmpsvwHTU
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.Op Fl h Ar hostname
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.Op Fl l Ar log_file
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.Op Fl x Ar log_options
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.Op Fl D Ar debug_options
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.Op Fl P Ar program_number
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.Op Oo Fl u Oc Ar directory ...
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.Sh DESCRIPTION
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The
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.Nm
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utility
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provides a simple way of determining the current state of the
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.Xr amd 8
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program.
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Communication is by
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.Tn RPC .
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Three modes of operation are supported by the current protocol.
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By default
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a list of mount points and auto-mounted file systems is output.
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An
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alternative host can be specified using the
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.Fl h
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option.
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.Pp
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If
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.Ar directory
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names are given, as output by default, then per file system
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information is displayed.
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.Sh OPTIONS
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.Bl -tag -width indent
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.It Fl f
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Ask the automounter to flush the internal caches and reload all the maps.
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.It Fl h Ar hostname
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Specify an alternate host to query.
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By default the local host is used.
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In
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an
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.Tn HP-UX
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cluster, the root server is queried by default, since that is the system on
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which the automounter is normally run.
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.It Fl l Ar log_file
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Tell
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.Xr amd 8
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to use
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.Ar log_file
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as the log file name.
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For security reasons, this must be the same log file
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which
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.Xr amd 8
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used when started.
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This option is therefore only useful to
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refresh
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.Nm amd Ns 's
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open file handle on the log file, so that it can be rotated
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and compressed via daily cron jobs.
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.It Fl m
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Ask the automounter to provide a list of mounted file systems, including the
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number of references to each file system and any error which occurred while
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mounting.
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.It Fl p
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Return the process ID of the remote or locally running
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.Xr amd 8 .
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Useful when you
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need to send a signal to the local
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.Xr amd 8
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process, and would rather not have to
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search through the process table.
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This option is used in the
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.Pa ctl-amd
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script.
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.It Fl s
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Ask the automounter to provide system-wide mount statistics.
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.It Fl u
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Ask the automounter to unmount the file systems named in
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.Ar directory
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instead of providing
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information about them.
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Unmounts are requested, not forced.
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They merely
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cause the mounted file system to timeout, which will be picked up by
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.Nm amd Ns 's
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main scheduler thus causing the normal timeout action to be taken.
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.It Fl v
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Ask the automounter for its version information.
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This is a subset of the
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information output by
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.Xr amd 8 Ns 's
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.Fl v
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option.
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.It Fl w
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Translate a full pathname as returned by
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.Xr getcwd 3
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into a short
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.Xr amd 8
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pathname that goes through its mount points.
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This option requires that
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.Xr amd 8
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is running.
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.It Fl x Ar log_options
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Ask the automounter to use the logging options specified in
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.Ar log_options
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from now on.
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.It Fl D Ar debug_options
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Ask the automounter to use the debugging options specified in
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.Ar debug_options
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from now on.
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.It Fl H
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Display short usage message.
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.It Fl P Ar program_number
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Contact an alternate running
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.Xr amd 8
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that had registered itself on a different
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.Tn RPC
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.Ar program_number
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and apply all other operations to that instance of the automounter.
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This is
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useful when you run multiple copies of
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.Xr amd 8 ,
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and need to manage each
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one separately.
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If not specified,
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.Nm
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will use the default program number for
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.Xr amd 8 ,
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300019.
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For security reasons, the only alternate program numbers
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.Xr amd 8
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can use range from 300019 to 300029, inclusive.
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.It Fl T
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Contact
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.Xr amd 8
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using the TCP transport only.
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Normally
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.Nm
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will try TCP, and if that failed, will try UDP.
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.It Fl U
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Contact
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.Xr amd 8
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using UDP (connectionless) transport only.
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Normally
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.Nm
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will try TCP, and if that failed, will try UDP.
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.El
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.Sh FILES
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.Bl -tag -width ".Pa amq.x" -compact
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.It Pa amq.x
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.Tn RPC
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protocol description.
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.El
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.Sh CAVEATS
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The
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.Nm
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utility
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uses a Sun registered
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.Tn RPC
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program number (300019 decimal) which may not
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be in the
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.Xr rpc 5
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database.
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.Pp
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If the TCP wrappers library is available, and the
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.Va use_tcpwrappers
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global
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.Xr amd.conf 5
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option is set to
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.Dq Li yes ,
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then
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.Xr amd 8
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will verify that the host running
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.Nm
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is authorized to connect.
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The
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.Dq Li amd
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service name must be used in the
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.Pa /etc/hosts.allow
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and
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.Pa /etc/hosts.deny
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files.
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For example, to allow only localhost to connect to
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.Xr amd 8 ,
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add this line to
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.Pa /etc/hosts.allow :
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.Pp
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.Dl "amd: localhost"
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.Pp
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and this line to
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.Pa /etc/hosts.deny :
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.Pp
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.Dl "amd: ALL"
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.Sh SEE ALSO
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.Xr amd.conf 5 ,
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.Xr hosts_access 5 ,
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.Xr amd 8
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.Pp
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.Dq am-utils
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.Xr info 1
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entry.
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.Rs
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.%A Erez Zadok
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.%B "Linux NFS and Automounter Administration"
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.%O ISBN 0-7821-2739-8
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.%I Sybex
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.%D 2001
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.Re
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.Pp
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.Pa http://www.am-utils.org/
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.Rs
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.%T Amd \- The 4.4 BSD Automounter
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.Re
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.Sh HISTORY
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The
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.Nm
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utility
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first appeared in
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.Bx 4.4 .
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.Sh AUTHORS
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.An Jan-Simon Pendry Aq jsp@doc.ic.ac.uk ,
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Department of Computing, Imperial College, London, UK.
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.Pp
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.An Erez Zadok Aq ezk@cs.sunysb.edu ,
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Computer Science Department, Stony Brook
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University, Stony Brook, New York, USA.
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.Pp
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Other authors and contributors to
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.Nm am-utils
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are listed in the
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.Pa AUTHORS
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file distributed with
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.Nm am-utils .
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