send messages to smbd, nmbd or winbindd processes
smbcontrol [-s] [-t|--timeout] 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.
Display brief usage message.
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.
Prints the program version number.
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 one.
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
This message causes the nmbd daemon to force a new browse master
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
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
Send a queue pause change notify message to the printer
Send a queue resume change notify message for the printer
jobpause printername unixjobid
Send a job pause change notify message for the printer and unix
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.
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.
Fetch and print the ringbuf log. Requires logging = ringbuf.
Available for smbd, winbindd 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.
Force smbd to reload printers. Can only be sent to smbd.
Notify about changes of id mapping. Can be sent to smbd or (not
implemented yet) winbindd.
Flush caches for sid <-> gid and/or sid <-> uid mapping.
This man page is part of version 4.9.11-Debian of the Samba suite.
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.