A.6 net


 net <adsraprpc> [-h] [-w workgroup] [-W myworkgroup] [-U user ] [-I ip-address] [-p port] [-n myname ] [-s conffile] [-S server] [-l] [-P] [-D debuglevel] 


This tool is part of the Samba(7) suite.

The samba net utility is meant to work just like the net utility available for windows and DOS. The first argument should be used to specify the protocol to use when executing a certain command. ADS is used for ActiveDirectory, RAP is using for old (Win9x/NT3) clients and RPC can be used for NT4 and Windows 2000. If this argument is omitted, net will try to determine it automatically. Not all commands are available on all protocols.


-h “help ” Print a summary of command line options.

-w target-workgroup ” Sets target workgroup or domain. You have to specify either this option or the IP address or the name of a server.

-W workgroup ” Sets client workgroup or domain

-U user ” User name to use

-I ip-address ” IP address of target server to use. You have to specify either this option or a target workgroup or a target server.

-p port ” Port on the target server to connect to (usually 139 or 445). Defaults to trying 445 first, then 139.

-n <primary NetBIOS name> ” This option allows you to override the NetBIOS name that Samba uses for itself. This is identical to setting the netbios name parameter in the smb.conf file. However, a command line setting will take precedence over settings in smb.conf .

-s <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.

-S server ” Name of target server. You should specify either this option or a target workgroup or a target IP address.

-l ” When listing data, give more information on each item.

-P ” Make queries to the external server using the machine account of the local server.

-d “debug=debuglevel ” debuglevel is an integer from 0 to 10. The default value if this parameter is not specified is zero.

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.



This command allows the Samba machine account password to be set from an external application to a machine account password that has already been stored in Active Directory. DO NOT USE this command unless you know exactly what you are doing. The use of this command requires that the force flag (-f) be used also. There will be NO command prompt. Whatever information is piped into stdin, either by typing at the command line or otherwise , will be stored as the literal machine password. Do NOT use this without care and attention as it will overwrite a legitimate machine password without warning. YOU HAVE BEEN WARNED.


The NET TIME command allows you to view the time on a remote server or synchronise the time on the local server with the time on the remote server.

TIME Without any options, the NET TIME command displays the time on the remote server.

TIME SYSTEM Displays the time on the remote server in a format ready for /bin/date

TIME SET Tries to set the date and time of the local server to that on the remote server using /bin/date.

TIME ZONE Displays the timezone in hours from GMT on the remote computer.

[RPCADS] Join [TYPE] [-U username[%password]] [options]

Join a domain. If the account already exists on the server, and [TYPE] is MEMBER, the machine will attempt to join automatically. (Assuming that the machine has been created in server manager) Otherwise, a password will be prompted for, and a new account may be created.

[TYPE] may be PDC, BDC or MEMBER to specify the type of server joining the domain.

[RPC] Oldjoin [options]

Join a domain. Use the OLDJOIN option to join the domain using the old style of domain joining - you need to create a trust account in server manager first.


[RPC ADS] USER DELETE target Delete specified user

[RPC ADS] USER LIST List all users

[RPC ADS] USER INFO target List the domain groups of a the specified user.

[RPC ADS] USER ADD name [password] [-F user flags] [-C comment] Add specified user.

[RPCADS] Group

[RPC ADS] GROUP [misc options] [targets] List user groups.

[RPC ADS] GROUP DELETE name [misc. options] Delete specified group.

[RPC ADS] GROUP ADD name [-C comment] Create specified group.

[RAPRPC] Share

[RAP RPC] SHARE [misc. options] [targets] Enumerates all exported resources (network shares) on target server.

[RAP RPC] SHARE ADD name=serverpath [-C comment] [-M maxusers] [targets] Adds a share from a server (makes the export active). Maxusers specifies the number of users that can be connected to the share simultaneously .

SHARE DELETE sharenam Delete specified share.


[RPC RAP] FILE List all open files on remote server.

[RPC RAP] FILE CLOSE fileid Close file with specified fileid on remote server.

[RPC RAP] FILE INFO fileid Print information on specified fileid . Currently listed are: file-id, username, locks, path , permissions.

[RAPRPC] File User



Currently NOT implemented.


RAP SESSION Without any other options, SESSION enumerates all active SMB/CIFS sessions on the target server.

RAP SESSION DELETE CLOSE CLIENT_NAME Close the specified sessions.

RAP SESSION INFO CLIENT_NAME Give a list with all the open files in specified session.


List all servers in specified domain or workgroup. Defaults to local domain.


Lists all domains and workgroups visible on the current network.


RAP PRINTQ LIST QUEUE_NAME Lists the specified print queue and print jobs on the server. If the QUEUE_NAME is omitted, all queues are listed.

RAP PRINTQ DELETE JOBID Delete job with specified id.

RAP VALIDATE user [ password ]

Validate whether the specified user can log in to the remote server. If the password is not specified on the commandline, it will be prompted.



Currently NOT implemented.


RAP GROUPMEMBER LIST GROUP List all members of the specified group.



RAP ADMIN command

Execute the specified command on the remote server. Only works with OS/2 servers.



Currently NOT implemented.


RAP SERVICE START NAME [arguments...] Start the specified service on the remote server. Not implemented yet.



Currently NOT implemented.

RAP SERVICE STOP Stop the specified service on the remote server.



Currently NOT implemented.


Change password of USER from OLDPASS to NEWPASS .


LOOKUP HOST HOSTNAME [ TYPE ] Lookup the IP address of the given host with the specified type (netbios suffix). The type defaults to 0x20 (workstation).

LOOKUP LDAP [ DOMAIN Give IP address of LDAP server of specified DOMAIN . Defaults to local domain.

LOOKUP KDC [ REALM ] Give IP address of KDC for the specified REALM . Defaults to local realm.

LOOKUP DC [ DOMAIN ] Give IP's of Domain Controllers for specified DOMAIN . Defaults to local domain.

LOOKUP MASTER DOMAIN Give IP of master browser for specified DOMAIN or workgroup. Defaults to local domain.


Samba uses a general caching interface called 'gencache'. It can be controlled using 'NET CACHE'.


s - Seconds


m - Minutes

All the timeout parameters support the suffixes:

h - Hours


d - Days


w - Weeks

CACHE ADD key data time-out Add specified key+data to the cache with the given timeout.

CACHE DEL key Delete key from the cache.

CACHE SET key data time-out Update data of existing cache entry.

CACHE SEARCH PATTERN Search for the specified pattern in the cache data.

CACHE LIST List all current items in the cache.

CACHE FLUSH Remove all the current items from the cache.


Print the SID of the specified domain, or if the parameter is omitted, the SID of the domain the local server is in.

SETLOCALSID S-1-5-21-x-y-z

Sets domain sid for the local server to the specified SID.


Manage the mappings between Windows group SIDs and UNIX groups. Parameters take the for "parameter=value". Common options include:

  • unixgroup - Name of the UNIX group

  • ntgroup - Name of the Windows NT group (must be resolvable to a SID

  • rid - Unsigned 32-bit integer

  • sid - Full SID in the form of "S-1-..."

  • type - Type of the group; either 'domain', 'local', or 'builtin'

  • comment - Freeform text description of the group

GROUPMAP ADD Add a new group mapping entry

net groupmap add {rid=intsid=string} unixgroup=string [type={domainlocalbuiltin}] [ntgroup=string] [comment=string]

GROUPMAP DELETE Delete a group mapping entry

net groupmap delete {ntgroup=stringsid=SID}

GROUPMAP MODIFY Update an existing group entry

net groupmap modify {ntgroup=stringsid=SID}

[unixgroup=string] [comment=string] [type={domainlocal}

GROUPMAP LIST List existing group mapping entries

net groupmap list [verbose] [ntgroup=string] [sid=SID]


Prints out the highest RID currently in use on the local server (by the active 'passdb backend').


Print information about the domain of the remote server, such as domain name, domain sid and number of users and groups.


Check whether participation in a domain is still valid.


Force change of domain trust password.


RPC TRUSTDOM ADD DOMAIN Add a interdomain trust account for DOMAIN to the remote server.

RPC TRUSTDOM DEL DOMAIM Remove interdomain trust account for DOMAIN from the remote server.



Currently NOT implemented.

RPC TRUSTDOM ESTABLISH DOMAIN Establish a trust relationship to a trusting domain. Interdomain account must already be created on the remote PDC.

RPC TRUSTDOM REVOKE DOMAIN Abandon relationship to trusted domain

RPC TRUSTDOM LIST List all current interdomain trust relationships.


Abort the shutdown of a remote server.

SHUTDOWN [-t timeout] [-r] [-f] [-C message]

Shut down the remote server.

-r ” Reboot after shutdown.

-f ” Force shutting down all applications.

-t timeout ” Timeout before system will be shut down. An interactive user of the system can use this time to cancel the shutdown.

-C message ” Display the specified message on the screen to announce the shutdown.


Print out sam database of remote server. You need to run this on either a BDC.


Export users, aliases and groups from remote server to local server. Can only be run an a BDC.


Fetch domain SID and store it in the local secrets.tdb .


Make the remote host leave the domain it is part of.


Print out status of machine account of the local machine in ADS. Prints out quite some debug info. Aimed at developers, regular users should use NET ADS TESTJOIN .


ADS PRINTER INFO [ PRINTER ] [ SERVER ] Lookup info for PRINTER on SERVER . The printer name defaults to "*", the server name defaults to the local host.

ADS PRINTER PUBLISH PRINTER Publish specified printer using ADS.

ADS PRINTER REMOVE PRINTER Remove specified printer from ADS directory.


Perform a raw LDAP search on a ADS server and dump the results. The expression is a standard LDAP search expression, and the attributes are a list of LDAP fields to show in the results.

Example: net ads search '(objectCategory=group)' sAMAccountName

ADS DN DN (attributes)

Perform a raw LDAP search on a ADS server and dump the results. The DN standard LDAP DN, and the attributes are a list of LDAP fields to show in the result.

Example: net ads dn 'CN=administrator,CN=Users,DC=my,DC=domain' SAMAccountName


Print out workgroup name for specified kerberos realm.


Gives usage information for the specified command.

Official Samba-3 HOWTO and Reference Guide
The Official Samba-3 HOWTO and Reference Guide, 2nd Edition
ISBN: 0131882228
EAN: 2147483647
Year: 2005
Pages: 297

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