Skip site navigation (1)Skip section navigation (2)

FreeBSD Manual Pages

  
 
  

home | help
AMQ(8)			FreeBSD	System Manager's Manual			AMQ(8)

NAME
     amq -- automounter	query tool

SYNOPSIS
     amq [-fmpsuvTU] [-h hostname] [-l log_file] [-x log_options]
	 [-D debug_options] [-M	mountmap_entry]	[-P program_number]
	 [directory] ...

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

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

OPTIONS
     -f	     Request automounter to flush the internal caches.

     -h	hostname
	     Query alternate host hostname.  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 to use log_file as the log file name.  For security rea-
	     sons, 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.

     -m	     Request the automounter to	provide	a list of mounted file sys-
	     tems, 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.  Use-
	     ful 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 ctl-amd script.

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

     -u	     Request the automounter to	unmount	the named file systems 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 scheduler thus causing the
	     normal timeout action to be taken.

     -v	     Request the automounter to	provide	version	information.  This is
	     a subset of the information provided by amd's -v option.

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

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

     -M	     Pass a mount map entry to amd and wait for	it to be evaluated,
	     possibly causing a	mount.	This option is highly insecure.	 By
	     default, amd and amq do not support it.  It is necessary to con-
	     figure am-utils with --enable-amq-mount to	enable this option.

     -P	program_number
	     Contact an	alternate running amd 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 running
	     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.

     -T	     Contact amd using the TCP transport only.	Normally amq will try
	     TCP, and if that fails, will try UDP.

     -U	     Contact amd using UDP (connectionless) transport only.  Normally
	     amq will try TCP, and if that fails, will try UDP.

FILES
     amq.x  RPC	protocol description.

CAVEATS
     Amq uses a	Sun registered RPC program number (300019 decimal) which may
     not be in the /etc/rpc database.

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

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

     Erez Zadok	<ezk@cs.columbia.edu>, Department of Computer Science,
     Columbia University, New York, USA.

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

HISTORY
     Amq first appeared	in 4.4BSD.

FreeBSD	11.1			March 16, 1991			  FreeBSD 11.1

NAME | SYNOPSIS | DESCRIPTION | OPTIONS | FILES | CAVEATS | SEE ALSO | AUTHORS | HISTORY

Want to link to this manual page? Use this URL:
<https://www.freebsd.org/cgi/man.cgi?query=amq&sektion=8&manpath=FreeBSD+5.2.1-RELEASE>

home | help