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SMBCONTROL(1)			 User Commands			 SMBCONTROL(1)

NAME
       smbcontrol - send messages to smbd, nmbd	or winbindd processes

SYNOPSIS
       smbcontrol [-s] [-t|--timeout]

       smbcontrol [destination]	[message-type] [parameter]

DESCRIPTION
       This tool is part of the	samba(7) suite.

       smbcontrol is a very small program, which sends messages	to a smbd(8),
       a nmbd(8), or a winbindd(8) daemon running on the system.

OPTIONS
       -?|--help
	   Print a summary of command line options.

       --usage
	   Display brief usage message.

       -d|--debuglevel=level
	   level is an integer from 0 to 10. The default value if this
	   parameter is	not specified is 1.

	   The higher this value, the more detail will be logged to the	log
	   files about the activities of the server. At	level 0, only critical
	   errors and serious warnings will be logged. Level 1 is a reasonable
	   level for day-to-day	running	- it generates a small amount of
	   information about operations	carried	out.

	   Levels above	1 will generate	considerable amounts of	log data, and
	   should only be used when investigating a problem. Levels above 3
	   are designed	for use	only by	developers and generate	HUGE amounts
	   of log data,	most of	which is extremely cryptic.

	   Note	that specifying	this parameter here will override the log
	   level parameter in the smb.conf file.

       -V|--version
	   Prints the program version number.

       -s|--configfile=<configuration file>
	   The file specified contains the configuration details required by
	   the server. The information in this file includes server-specific
	   information such as what printcap file to use, as well as
	   descriptions	of all the services that the server is to provide. See
	   smb.conf for	more information. The default configuration file name
	   is determined at compile time.

       -l|--log-basename=logdirectory
	   Base	directory name for log/debug files. The	extension ".progname"
	   will	be appended (e.g. log.smbclient, log.smbd, etc...). The	log
	   file	is never removed by the	client.

       --option=<name>=<value>
	   Set the smb.conf(5) option "<name>" to value	"<value>" from the
	   command line. This overrides	compiled-in defaults and options read
	   from	the configuration file.

       -t|--timeout
	   Set timeout to seconds.

       destination
	   One of nmbd,	smbd, winbindd or a process ID.

	   The all destination causes the message to "broadcast" to all
	   running daemons including nmbd and winbind. This is a change	for
	   Samba 3.3, prior to this the	parameter smbd used to do this.

	   The smbd destination	causes the message to be sent to the smbd
	   daemon specified in the smbd.pid file.

	   The nmbd destination	causes the message to be sent to the nmbd
	   daemon specified in the nmbd.pid file.

	   The winbindd	destination causes the message to be sent to the
	   winbind daemon specified in the winbindd.pid	file.

	   If a	single process ID is given, the	message	is sent	to only	that
	   process.

       message-type
	   Type	of message to send. See	the section MESSAGE-TYPES for details.

       parameters
	   any parameters required for the message-type

MESSAGE-TYPES
       Available message types are:

       close-share
	   Order smbd to close the client connections to the named share. Note
	   that	this doesn't affect client connections to any other shares.
	   This	message-type takes an argument of the share name for which
	   client connections will be closed, or the "*" character which will
	   close all currently open shares. This may be	useful if you made
	   changes to the access controls on the share.	This message can only
	   be sent to smbd.

       close-denied-share
	   Behave like close-share, but	don't disconnect users that are	still
	   allowed to access the share.	It can safely be sent to all smbds
	   after changing share	access controls. It will only affect users who
	   have	been denied access since having	connected initially. This
	   message can only be sent to smbd.

       debug
	   Set debug level to the value	specified by the parameter. This can
	   be sent to any of the destinations. If this message is sent to
	   either the smbd or winbindd daemons,	the parent process will
	   rebroadcast the message to all child	processes changing the debug
	   level in each one.

       kill-client-ip
	   Order smbd to close the client connections from a given IP address.
	   This	message-type takes an argument of the IP address from which
	   client connections will be closed. This message can only be sent to
	   smbd.

       force-election
	   This	message	causes the nmbd	daemon to force	a new browse master
	   election.

       ping
	   Send	specified number of "ping" messages and	wait for the same
	   number of reply "pong" messages. This can be	sent to	any of the
	   destinations.

       profile
	   Change profile settings of a	daemon,	based on the parameter.	The
	   parameter can be "on" to turn on profile stats collection, "off" to
	   turn	off profile stats collection, "count" to enable	only
	   collection of count stats (time stats are disabled),	and "flush" to
	   zero	the current profile stats. This	can be sent to any smbd	or
	   nmbd	destinations.

       debuglevel
	   Request debuglevel of a certain daemon and write it to stdout. This
	   can be sent to any of the destinations.

       profilelevel
	   Request profilelevel	of a certain daemon and	write it to stdout.
	   This	can be sent to any smbd	or nmbd	destinations.

       printnotify
	   Order smbd to send a	printer	notify message to any Windows NT
	   clients connected to	a printer. This	message-type takes the
	   following arguments:

	   queuepause printername
	       Send a queue pause change notify	message	to the printer
	       specified.

	   queueresume printername
	       Send a queue resume change notify message for the printer
	       specified.

	   jobpause printername	unixjobid
	       Send a job pause	change notify message for the printer and unix
	       jobid specified.

	   jobresume printername unixjobid
	       Send a job resume change	notify message for the printer and
	       unix jobid specified.

	   jobdelete printername unixjobid
	       Send a job delete change	notify message for the printer and
	       unix jobid specified.

	   Note	that this message only sends notification that an event	has
	   occurred. It	doesn't	actually cause the event to happen.

	   This	message	can only be sent to smbd.

       dmalloc-mark
	   Set a mark for dmalloc. Can be sent to both smbd and	nmbd. Only
	   available if	samba is built with dmalloc support.

       dmalloc-log-changed
	   Dump	the pointers that have changed since the mark set by
	   dmalloc-mark. Can be	sent to	both smbd and nmbd. Only available if
	   samba is built with dmalloc support.

       shutdown
	   Shut	down specified daemon. Can be sent to both smbd	and nmbd.

       pool-usage
	   Print a human-readable description of all talloc(pool) memory usage
	   by the specified daemon/process. Available for both smbd and	nmbd.

       ringbuf-log
	   Fetch and print the ringbuf log. Requires logging = ringbuf.
	   Available for smbd, winbindd	and nmbd.

       drvupgrade
	   Force clients of printers using specified driver to update their
	   local version of the	driver.	Can only be sent to smbd.

       reload-config
	   Force daemon	to reload smb.conf configuration file. Can be sent to
	   smbd, nmbd, or winbindd.

       reload-printers
	   Force smbd to reload	printers. Can only be sent to smbd.

       idmap
	   Notify about	changes	of id mapping. Can be sent to smbd or (not
	   implemented yet) winbindd.

	   flush [uid|gid]
	       Flush caches for	sid <->	gid and/or sid <-> uid mapping.

	   delete <ID>
	       Remove a	mapping	from cache. The	mapping	is given by <ID> which
	       may either be a sid: S-x-..., a gid: "GID number" or a uid:
	       "UID number".

	   kill	<ID>
	       Remove a	mapping	from cache. Terminate smbd if the id is
	       currently in use.

       num-children
	   Query the number of smbd child processes. This message can only be
	   sent	to smbd.

VERSION
       This man	page is	part of	version	4.13.1 of the Samba suite.

SEE ALSO
       nmbd(8) and smbd(8).

AUTHOR
       The original Samba software and related utilities were created by
       Andrew Tridgell.	Samba is now developed by the Samba Team as an Open
       Source project similar to the way the Linux kernel is developed.

Samba 4.13.1			  10/28/2020			 SMBCONTROL(1)

NAME | SYNOPSIS | DESCRIPTION | OPTIONS | MESSAGE-TYPES | VERSION | SEE ALSO | AUTHOR

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