1SMBCONTROL(1)                    User Commands                   SMBCONTROL(1)
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NAME

6       smbcontrol - send messages to smbd, nmbd or winbindd processes
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SYNOPSIS

9       smbcontrol [-s] [-t|--timeout]
10
11       smbcontrol [destination] [message-type] [parameter]
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DESCRIPTION

14       This tool is part of the samba(7) suite.
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16       smbcontrol is a very small program, which sends messages to a smbd(8),
17       a nmbd(8), or a winbindd(8) daemon running on the system.
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OPTIONS

20       -?|--help
21           Print a summary of command line options.
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23       --usage
24           Display brief usage message.
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26       -d|--debuglevel=level
27           level is an integer from 0 to 10. The default value if this
28           parameter is not specified is 1.
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30           The higher this value, the more detail will be logged to the log
31           files about the activities of the server. At level 0, only critical
32           errors and serious warnings will be logged. Level 1 is a reasonable
33           level for day-to-day running - it generates a small amount of
34           information about operations carried out.
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36           Levels above 1 will generate considerable amounts of log data, and
37           should only be used when investigating a problem. Levels above 3
38           are designed for use only by developers and generate HUGE amounts
39           of log data, most of which is extremely cryptic.
40
41           Note that specifying this parameter here will override the log
42           level parameter in the smb.conf file.
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44       -V|--version
45           Prints the program version number.
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47       -s|--configfile=<configuration file>
48           The file specified contains the configuration details required by
49           the server. The information in this file includes server-specific
50           information such as what printcap file to use, as well as
51           descriptions of all the services that the server is to provide. See
52           smb.conf for more information. The default configuration file name
53           is determined at compile time.
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55       -l|--log-basename=logdirectory
56           Base directory name for log/debug files. The extension ".progname"
57           will be appended (e.g. log.smbclient, log.smbd, etc...). The log
58           file is never removed by the client.
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60       --option=<name>=<value>
61           Set the smb.conf(5) option "<name>" to value "<value>" from the
62           command line. This overrides compiled-in defaults and options read
63           from the configuration file.
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65       -t|--timeout
66           Set timeout to seconds.
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68       destination
69           One of nmbd, smbd, winbindd or a process ID.
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71           The all destination causes the message to "broadcast" to all
72           running daemons including nmbd and winbind. This is a change for
73           Samba 3.3, prior to this the parameter smbd used to do this.
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75           The smbd destination causes the message to be sent to the smbd
76           daemon specified in the smbd.pid file.
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78           The nmbd destination causes the message to be sent to the nmbd
79           daemon specified in the nmbd.pid file.
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81           The winbindd destination causes the message to be sent to the
82           winbind daemon specified in the winbindd.pid file.
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84           If a single process ID is given, the message is sent to only that
85           process.
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87       message-type
88           Type of message to send. See the section MESSAGE-TYPES for details.
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90       parameters
91           any parameters required for the message-type
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MESSAGE-TYPES

94       Available message types are:
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96       close-share
97           Order smbd to close the client connections to the named share. Note
98           that this doesn't affect client connections to any other shares.
99           This message-type takes an argument of the share name for which
100           client connections will be closed, or the "*" character which will
101           close all currently open shares. This may be useful if you made
102           changes to the access controls on the share. This message can only
103           be sent to smbd.
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105       debug
106           Set debug level to the value specified by the parameter. This can
107           be sent to any of the destinations. If this message is sent to
108           either the smbd or winbindd daemons, the parent process will
109           rebroadcast the message to all child processes changing the debug
110           level in each one.
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112       kill-client-ip
113           Order smbd to close the client connections from a given IP address.
114           This message-type takes an argument of the IP address from which
115           client connections will be closed. This message can only be sent to
116           smbd.
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118       force-election
119           This message causes the nmbd daemon to force a new browse master
120           election.
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122       ping
123           Send specified number of "ping" messages and wait for the same
124           number of reply "pong" messages. This can be sent to any of the
125           destinations.
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127       profile
128           Change profile settings of a daemon, based on the parameter. The
129           parameter can be "on" to turn on profile stats collection, "off" to
130           turn off profile stats collection, "count" to enable only
131           collection of count stats (time stats are disabled), and "flush" to
132           zero the current profile stats. This can be sent to any smbd or
133           nmbd destinations.
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135       debuglevel
136           Request debuglevel of a certain daemon and write it to stdout. This
137           can be sent to any of the destinations.
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139       profilelevel
140           Request profilelevel of a certain daemon and write it to stdout.
141           This can be sent to any smbd or nmbd destinations.
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143       printnotify
144           Order smbd to send a printer notify message to any Windows NT
145           clients connected to a printer. This message-type takes the
146           following arguments:
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148           queuepause printername
149               Send a queue pause change notify message to the printer
150               specified.
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152           queueresume printername
153               Send a queue resume change notify message for the printer
154               specified.
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156           jobpause printername unixjobid
157               Send a job pause change notify message for the printer and unix
158               jobid specified.
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160           jobresume printername unixjobid
161               Send a job resume change notify message for the printer and
162               unix jobid specified.
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164           jobdelete printername unixjobid
165               Send a job delete change notify message for the printer and
166               unix jobid specified.
167
168           Note that this message only sends notification that an event has
169           occurred. It doesn't actually cause the event to happen.
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171           This message can only be sent to smbd.
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173       dmalloc-mark
174           Set a mark for dmalloc. Can be sent to both smbd and nmbd. Only
175           available if samba is built with dmalloc support.
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177       dmalloc-log-changed
178           Dump the pointers that have changed since the mark set by
179           dmalloc-mark. Can be sent to both smbd and nmbd. Only available if
180           samba is built with dmalloc support.
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182       shutdown
183           Shut down specified daemon. Can be sent to both smbd and nmbd.
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185       pool-usage
186           Print a human-readable description of all talloc(pool) memory usage
187           by the specified daemon/process. Available for both smbd and nmbd.
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189       ringbuf-log
190           Fetch and print the ringbuf log. Requires logging = ringbuf.
191           Available for smbd, winbindd and nmbd.
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193       drvupgrade
194           Force clients of printers using specified driver to update their
195           local version of the driver. Can only be sent to smbd.
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197       reload-config
198           Force daemon to reload smb.conf configuration file. Can be sent to
199           smbd, nmbd, or winbindd.
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201       reload-printers
202           Force smbd to reload printers. Can only be sent to smbd.
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204       idmap
205           Notify about changes of id mapping. Can be sent to smbd or (not
206           implemented yet) winbindd.
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208           flush [uid|gid]
209               Flush caches for sid <-> gid and/or sid <-> uid mapping.
210
211           delete <ID>
212               Remove a mapping from cache. The mapping is given by <ID> which
213               may either be a sid: S-x-..., a gid: "GID number" or a uid:
214               "UID number".
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216           kill <ID>
217               Remove a mapping from cache. Terminate smbd if the id is
218               currently in use.
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220       num-children
221           Query the number of smbd child processes. This message can only be
222           sent to smbd.
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VERSION

225       This man page is part of version 4.10.4 of the Samba suite.
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SEE ALSO

228       nmbd(8) and smbd(8).
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AUTHOR

231       The original Samba software and related utilities were created by
232       Andrew Tridgell. Samba is now developed by the Samba Team as an Open
233       Source project similar to the way the Linux kernel is developed.
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237Samba 4.10.4                      05/28/2019                     SMBCONTROL(1)
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