SMBCONTROL(1) User Commands SMBCONTROL(1)
smbcontrol - send messages to smbd, nmbd or winbindd processes
smbcontrol [-i] [-s]
smbcontrol [destination] [message-type] [parameter]
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.
Print a summary of command line options.
-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.
Run interactively. Individual commands of the form destination message-type parameters can be entered on STDIN. An empty command line
or a "q" will quit the program.
One of nmbd, smbd 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.
Type of message to send. See the section MESSAGE-TYPES for details.
any parameters required for the message-type
Available message types are:
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.
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
This message causes the nmbd daemon to force a new browse master election.
Send specified number of "ping" messages and wait for the same number of reply "pong" messages. This can be sent to any of the
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.
Request debuglevel of a certain daemon and write it to stdout. This can be sent to any of the destinations.
Request profilelevel of a certain daemon and write it to stdout. This can be sent to any smbd or nmbd destinations.
Order smbd to send a printer notify message to any Windows NT clients connected to a printer. This message-type takes the following
Send a queue pause change notify message to the printer specified.
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 occured. It doesn't actually cause the event to happen.
This message can only be sent to smbd.
Order smbd to synchronise sam database from PDC (being BDC). Can only be sent to smbd.
Not working at the moment
Send sam replication message, with specified serial. Can only be sent to smbd. Should not be used manually.
Set a mark for dmalloc. Can be sent to both smbd and nmbd. Only available if samba is built with dmalloc support.
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.
Shut down specified daemon. Can be sent to both smbd and nmbd.
Print a human-readable description of all talloc(pool) memory usage by the specified daemon/process. Available for both smbd and nmbd.
Force clients of printers using specified driver to update their local version of the driver. Can only be sent to smbd.
Force daemon to reload smb.conf configuration file. Can be sent to smbd, nmbd, or winbindd.
This man page is correct for version 3 of the Samba suite.
nmbd(8) and smbd(8).
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.
The original Samba man pages were written by Karl Auer. The man page sources were converted to YODL format (another excellent piece of Open
Source software, available at ftp://ftp.icce.rug.nl/pub/unix/) and updated for the Samba 2.0 release by Jeremy Allison. The conversion to
DocBook for Samba 2.2 was done by Gerald Carter. The conversion to DocBook XML 4.2 for Samba 3.0 was done by Alexander Bokovoy.
Samba 3.5 06/18/2010 SMBCONTROL(1)