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

FreeBSD Man Pages

Man Page or Keyword Search:
Man Architecture
Apropos Keyword Search (all sections) Output format
home | help
AMQ(8)			FreeBSD	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.

FreeBSD	9.3			January	2, 2006			   FreeBSD 9.3

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

Want to link to this manual page? Use this URL:
<http://www.freebsd.org/cgi/man.cgi?query=amq&sektion=8&manpath=FreeBSD+9.3-RELEASE>

home | help