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.

       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 4.9.5-Debian 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 4.9.5-Debian                     09/02/2019                         SMBCONTROL(1)

Használat: smbcontrol [OPTION...] <destination> <message-type> <parameters>
  -t, --timeout=TIMEOUT              Set timeout value in seconds

Help options:
  -?, --help                         Show this help message
      --usage                        Display brief usage message

Common samba options:
  -d, --debuglevel=DEBUGLEVEL        Set debug level
  -s, --configfile=CONFIGFILE        Use alternate configuration file
  -l, --log-basename=LOGFILEBASE     Base name for log files
  -V, --version                      Print version
      --option=name=value            Set smb.conf option from command line

<destination> is one of "nmbd", "smbd", "winbindd" or a process ID

<message-type> is one of:
        debug                         Set debuglevel
        idmap                         Manipulate idmap cache
        force-election                Force a browse election
        ping                          Elicit a response
        profile                       
        inject                        Inject a fatal signal into a running smbd
        stacktrace                    Display a stack trace of a daemon
        profilelevel                  
        debuglevel                    Display current debuglevels
        printnotify                   Send a print notify message
        close-share                   Forcibly disconnect a share
        kill-client-ip                Forcibly disconnect a client with a specific IP address
        ip-dropped                    Tell winbind that an IP got dropped
        lockretry                     Force a blocking lock retry
        brl-revalidate                Revalidate all brl entries
        pool-usage                    Display talloc memory usage
        ringbuf-log                   Display ringbuf log
        dmalloc-mark                  
        dmalloc-log-changed           
        shutdown                      Shut down daemon
        drvupgrade                    Notify a printer driver has changed
        reload-config                 Force smbd or winbindd to reload config file
        reload-printers               Force smbd to reload printers
        nodestatus                    Ask nmbd to do a node status request
        online                        Ask winbind to go into online state
        offline                       Ask winbind to go into offline state
        onlinestatus                  Request winbind online status
        validate-cache                Validate winbind's credential cache
        dump-domain-list              Dump winbind domain list
        disconnect-dc                 (null)
        notify-cleanup                (null)
        num-children                  Print number of smbd child processes
        msg-cleanup                   (null)
        noop                          Do nothing