*nix Documentation Project
·  Home
 +   man pages
·  Linux HOWTOs
·  FreeBSD Tips
·  *niX Forums

  man pages->FreeBSD man pages -> amq (8)              



NAME    [Toc]    [Back]

     amq -- automounter query tool

SYNOPSIS    [Toc]    [Back]

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

DESCRIPTION    [Toc]    [Back]

     Amq 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    [Toc]    [Back]

     -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 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.

     -m      Request 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.  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 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 configure
 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    [Toc]    [Back]

     amq.x  RPC protocol description.

CAVEATS    [Toc]    [Back]

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

SEE ALSO    [Toc]    [Back]

     amd.conf(5), amd(8)

AUTHORS    [Toc]    [Back]

     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    [Toc]    [Back]

     Amq first appeared in 4.4BSD.

FreeBSD 5.2.1			March 16, 1991			 FreeBSD 5.2.1
[ Back ]
 Similar pages
Name OS Title
pawd FreeBSD print automounter working directory
ripquery HP-UX query RIP gateways
TIFFquery IRIX query routines
CSSM_CL_CrlAbortQuery Tru64 Terminate a query (CDSA)
glXQueryContextInfoEXT Tru64 query context information
res_isourserver IRIX resolver query utilities
alpq IRIX query the alp STREAMS module
ntpq FreeBSD standard NTP query program
CL_CrlAbortQuery Tru64 Terminate a query (CDSA)
glxquerycontext IRIX query context information
Copyright © 2004-2005 DeniX Solutions SRL
newsletter delivery service