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AMQ(8)			  BSD System Manager's Manual			AMQ(8)

NAME
     amq — automounter query tool

SYNOPSIS
     amq [-fmpsvwHTU] [-h hostname] [-l log_file] [-x log_options]
	 [-D debug_options] [-P program_number] [[-u] directory ...]

DESCRIPTION
     The amq utility provides a simple way of determining the current state of
     the amd(8) program.  Communication is by RPC.  Three modes of operation
     are supported by the current protocol.  By default a list of mount points
     and auto-mounted file systems is output.  An alternative host can be
     specified using the -h option.

     If directory names are given, as output by default, then per file system
     information is displayed.

OPTIONS
     -f	     Ask the automounter to flush the internal caches and reload all
	     the maps.

     -h hostname
	     Specify an alternate host to query.  By default the local host is
	     used.  In an HP-UX cluster, the root server is queried by
	     default, since that is the system on which the automounter is
	     normally run.

     -l log_file
	     Tell amd(8) to use log_file as the log file name.	For security
	     reasons, this must be the same log file which amd(8) 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.

     -m	     Ask the automounter to provide a list of mounted file systems,
	     including the number of references to each file system and any
	     error which occurred while mounting.

     -p	     Return the process ID of the remote or locally running amd(8).
	     Useful when you need to send a signal to the local amd(8)
	     process, and would rather not have to search through the process
	     table.  This option is used in the ctl-amd script.

     -s	     Ask the automounter to provide system-wide mount statistics.

     -u	     Ask the automounter to unmount the file systems named in
	     directory instead of providing information about them.  Unmounts
	     are requested, not forced.	 They merely cause the mounted file
	     system to timeout, which will be picked up by amd's main sched‐
	     uler thus causing the normal timeout action to be taken.

     -v	     Ask the automounter for its version information.  This is a sub‐
	     set of the information output by amd(8)'s -v option.

     -w	     Translate a full pathname as returned by getcwd(3) into a short
	     amd(8) pathname that goes through its mount points.  This option
	     requires that amd(8) is running.

     -x log_options
	     Ask the automounter to use the logging options specified in
	     log_options from now on.

     -D debug_options
	     Ask the automounter to use the debugging options specified in
	     debug_options from now on.

     -H	     Display short usage message.

     -P program_number
	     Contact an alternate running amd(8) that had registered itself on
	     a different RPC program_number and apply all other operations to
	     that instance of the automounter.	This is useful when you run
	     multiple copies of amd(8), and need to manage each one sepa‐
	     rately.  If not specified, amq will use the default program num‐
	     ber for amd(8), 300019.  For security reasons, the only alternate
	     program numbers amd(8) can use range from 300019 to 300029,
	     inclusive.

     -T	     Contact amd(8) using the TCP transport only.  Normally amq will
	     try TCP, and if that failed, will try UDP.

     -U	     Contact amd(8) using UDP (connectionless) transport only.	Nor‐
	     mally amq will try TCP, and if that failed, will try UDP.

FILES
     amq.x  RPC protocol description.

CAVEATS
     The amq utility uses a Sun registered RPC program number (300019 decimal)
     which may not be in the rpc(5) database.

     If the TCP wrappers library is available, and the use_tcpwrappers global
     amd.conf(5) option is set to “yes”, then amd(8) will verify that the host
     running amq is authorized to connect.  The “amd” service name must be
     used in the /etc/hosts.allow and /etc/hosts.deny files.  For example, to
     allow only localhost to connect to amd(8), add this line to
     /etc/hosts.allow:

	   amd: localhost

     and this line to /etc/hosts.deny:

	   amd: ALL

SEE ALSO
     amd.conf(5), hosts_access(5), amd(8)

     “am-utils” info(1) entry.

     Erez Zadok, Linux NFS and Automounter Administration, Sybex, 2001, ISBN
     0-7821-2739-8.

     http://www.am-utils.org/

     Amd - The 4.4 BSD Automounter.

HISTORY
     The amq utility first appeared in 4.4BSD.

AUTHORS
     Jan-Simon Pendry ⟨jsp@doc.ic.ac.uk⟩, Department of Computing, Imperial
     College, London, UK.

     Erez Zadok ⟨ezk@cs.sunysb.edu⟩, Computer Science Department, Stony Brook
     University, Stony Brook, New York, USA.

     Other authors and contributors to am-utils are listed in the AUTHORS file
     distributed with am-utils.

BSD				January 2, 2006				   BSD
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