.\" .\" Copyright (c) 1997-2011 Erez Zadok .\" Copyright (c) 1990 Jan-Simon Pendry .\" Copyright (c) 1990 Imperial College of Science, Technology & Medicine .\" Copyright (c) 1990 The Regents of the University of California. .\" All rights reserved. .\" .\" This code is derived from software contributed to Berkeley by .\" Jan-Simon Pendry at Imperial College, London. .\" .\" 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. .\" 3. All advertising materials mentioning features or use of this software .\" must display the following acknowledgment: .\" This product includes software developed by the University of .\" California, Berkeley and its contributors. .\" 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. .\" .\" .\" File: am-utils/amq/amq.8 .\" .TH AMQ 8 "25 April 1989" .SH NAME amq \- automounter query tool .SH SYNOPSIS .B amq [ .BI \-fmpqsvwHTU ] [ .BI \-h " hostname" ] [ .BI \-l " log_file" ] [ .BI \-x " log_options" ] [ .BI \-D " debug_options" ] [ .BI \-P " program_number" ] [[ .B \-u ] .I directory .\|.\|. ] .SH DESCRIPTION .B Amq provides a simple way of determining the current state of .B amd program. Communication is by .SM RPC. Three modes of operation are supported by the current protocol. By default a list of mount points and auto-mounted filesystems is output. An alternative host can be specified using the .I \-h option. .LP If .I directory names are given, as output by default, then per-filesystem information is displayed. .SH OPTIONS .TP .B \-f Ask the automounter to flush the internal caches and reload all the maps. .TP .BI \-h " hostname" Specify an alternate host to query. By default the local host is used. In an .SM HP-UX cluster, the root server is queried by default, since that is the system on which the automounter is normally run. .TP .BI \-l " log_file" Tell amd to use .I log_file as the log file name. For security reasons, this must be the same log file which amd used when started. This option is therefore only useful to refresh amd's open file handle on the log file, so that it can be rotated and compressed via daily cron jobs. .TP .B \-m Ask the automounter to provide a list of mounted filesystems, including the number of references to each filesystem and any error which occurred while mounting. .TP .B \-p Return the process ID of the remote or locally running amd. Useful when you need to send a signal to the local amd process, and would rather not have to search through the process table. This option is used in the .I ctl-amd script. .TP .B \-q Suppress error messages produced when attempting synchronous unmounts with the .B \-u option. .TP .B \-s Ask the automounter to provide system-wide mount statistics. .TP .B \-u Ask the automounter to unmount the filesystems named in .I directory instead of providing information about them. Unmounts are requested, not forced. They merely cause the mounted filesystem to timeout, which will be picked up by .BR amd 's main scheduler thus causing the normal timeout action to be taken. If the .B \-u option is repeated, .B amq will attempt to unmount the file system synchronously by waiting until the timeout action is taken and returning an error if the unmount fails. Any error messages produced may be suppressed with the .B \-q option. .TP .B \-v Ask the automounter for its version information. This is a subset of the information output by .BR amd 's .I -v option. .TP .B \-w Translate a full pathname as returned by .IR getcwd (3) into a short .B Amd pathname that goes through its mount points. This option requires that .B Amd is running. .TP .BI \-x " log_options" Ask the automounter to use the logging options specified in .I log_options from now on. Note that the "fatal" and "error" options cannot be turned off. .TP .BI \-D " debug_options" Ask the automounter to use the debugging options specified in .I debug_options from now on. .TP .B \-H Display short usage message. .TP .BI \-P " program_number" Contact an alternate running amd that had registered itself on a different RPC .I program_number and apply all other operations to that instance of the automounter. This is useful when you run multiple copies of amd, and need to manage each one separately. If not specified, amq will use the default program number for amd, 300019. For security reasons, the only alternate program numbers amd can use range from 300019 to 300029, inclusive. .TP .B \-T Contact .B amd using the TCP transport only. Normally .B amq will try TCP, and if that failed, will try UDP. .TP .B \-U Contact .B amd using UDP (connectionless) transport only. Normally .B amq will try TCP, and if that failed, will try UDP. .SH FILES .TP 20 .B amq.x .SM RPC protocol description. .SH CAVEATS .B Amq uses a Sun registered .SM RPC program number (300019 decimal) which may not be in the /etc/rpc database. .PP If the TCP wrappers library is available, and the .B use_tcpwrappers global .B amd.conf option is set to ``yes'', then .B amd will verify that the host running .B amq is authorized to connect. The .I amd service name must used in the .B /etc/hosts.allow and .B /etc/hosts.deny files. For example, to allow only localhost to connect to .B amd, add this line to .B /etc/hosts.allow: .PP .RS amd: localhost .RE .PP and this line to .B /etc/hosts.deny: .PP .RS amd: ALL .RE .SH "SEE ALSO" .BR amd (8), .\" .BR ctl-amd (8), .BR amd.conf (5), .BR hosts_access (5). .LP ``am-utils'' .BR info (1) entry. .LP .I "Linux NFS and Automounter Administration" by Erez Zadok, ISBN 0-7821-2739-8, (Sybex, 2001). .LP .I http://www.am-utils.org .LP .I "Amd \- The 4.4 BSD Automounter" .SH AUTHORS Jan-Simon Pendry , Department of Computing, Imperial College, London, UK. .P Erez Zadok , Computer Science Department, Stony Brook University, Stony Brook, New York, USA. .P Other authors and contributors to am-utils are listed in the .B AUTHORS file distributed with am-utils.