smbcontrol — send messages to smbd, nmbd or winbindd processes
smbcontrol [-?|--help] [--usage] [-t|--timeout] [-d|--debuglevel=DEBUGLEVEL] [--debug-stdout] [--configfile=CONFIGFILE] [--option=name=value] [-l|--log-basename=LOGFILEBASE] [--leak-report] [--leak-report-full]
smbcontrol [destination] [message-type] [parameter]
This tool is part of the samba(7) suite.
Set timeout to seconds.
or a process ID.
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.
smbd destination causes the
message to be sent to the smbd daemon specified in the
nmbd destination causes the
message to be sent to the nmbd daemon specified in the
winbindd destination causes the
message to be sent to the winbind daemon specified in the
If a single process ID is given, the message is sent to only that process.
Type of message to send. See
MESSAGE-TYPES for details.
any parameters required for the message-type
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 for client applications.
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
This will redirect debug output to STDOUT. By default all clients are logging to STDERR.
The file specified contains the configuration details
required by the client. The information in this file
can be general for client and server or only provide
client specific like options such as
client smb encrypt. See
smb.conf for more information. The default
configuration file name is determined at compile time.
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. If a name or a value includes a space, wrap whole --option=name=value into quotes.
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.
Enable talloc leak reporting on exit.
Enable full talloc leak reporting on exit.
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
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
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 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 destinations.
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 arguments:
Send a queue pause change notify message to the printer specified.
Send a queue resume change notify message for the printer specified.
Send a job pause change notify message for the printer and unix jobid specified.
Send a job resume change notify message for the printer and unix jobid specified.
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
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
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
Force smbd to reload printers. Can only be sent to
Notify about changes of id mapping. Can be sent
smbd or (not implemented yet)
Query the number of smbd child processes. This
message can only be sent