samba-tool Man page

SAMBA-TOOL(8) System Administration tools SAMBA-TOOL(8)


samba-tool – Main Samba administration tool.


samba-tool [-h] [-W myworkgroup] [-U user] [-d debuglevel] [–v]


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


Show this help message and exit

Set the realm name

DN to use for a simple bind


-U USERNAME|–username=USER




Don’t ask for a password

Use Kerberos

IP address of the server

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.

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.

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.

Set the smb.conf(5) option “” to value “” from the
command line. This overrides compiled-in defaults and options read
from the configuration file.

Check the local AD database for errors.

Manage Delegations.

delegation add-service accountname principal [options] Add a service principal as msDS-AllowedToDelegateTo.

delegation del-service accountname principal [options] Delete a service principal as msDS-AllowedToDelegateTo.

delegation for-any-protocol accountname [(on|off)] [options] Set/unset UF_TRUSTED_TO_AUTHENTICATE_FOR_DELEGATION (S4U2Proxy) for an

delegation for-any-service accountname [(on|off)] [options] Set/unset UF_TRUSTED_FOR_DELEGATION for an account.

delegation show accountname [options] Show the delegation setting of an account.

Manage Domain Name Service (DNS).

dns add server zone name A|AAAA|PTR|CNAME|NS|MX|SRV|TXT data
Add a DNS record.

dns delete server zone name A|AAAA|PTR|CNAME|NS|MX|SRV|TXT data
Delete a DNS record.

dns query server zone name A|AAAA|PTR|CNAME|NS|MX|SRV|TXT|ALL [options] data
Query a name.

dns roothints server [name] [options] Query root hints.

dns serverinfo server [options] Query server information.

dns update server zone name A|AAAA|PTR|CNAME|NS|MX|SRV|TXT olddata newdata
Update a DNS record.

dns zonecreate server zone [options] Create a zone.

dns zonedelete server zone [options] Delete a zone.

dns zoneinfo server zone [options] Query zone information.

dns zonelist server [options] List zones.

Manage Domain.

domain classicupgrade [options] classic_smb_conf
Upgrade from Samba classic (NT4-like) database to Samba AD DC database.

domain dcpromo dnsdomain [DC|RODC] [options] Promote an existing domain member or NT4 PDC to an AD DC.

domain demote
Demote ourselves from the role of domain controller.

domain exportkeytab keytab [options] Dumps Kerberos keys of the domain into a keytab.

domain info ip_address [options] Print basic info about a domain and the specified DC.

domain join dnsdomain [DC|RODC|MEMBER|SUBDOMAIN] [options] Join a domain as either member or backup domain controller.

domain level show|raise options [options] Show/raise domain and forest function levels.

domain passwordsettings show|set options [options] Show/set password settings.

domain provision
Promote an existing domain member or NT4 PDC to an AD DC.

domain trust
Domain and forest trust management.

domain trust create DOMAIN options [options] Create a domain or forest trust.

domain trust delete DOMAIN options [options] Delete a domain trust.

domain trust list options [options] List domain trusts.

domain trust namespaces [DOMAIN] options [options] Manage forest trust namespaces.

domain trust show DOMAIN options [options] Show trusted domain details.

domain trust validate DOMAIN options [options] Validate a domain trust.

Manage Directory Replication Services (DRS).

drs bind
Show DRS capabilities of a server.

drs kcc
Trigger knowledge consistency center run.

drs options
Query or change options for NTDS Settings object of a domain

drs replicate destination_DC source_DC NC [options] Replicate a naming context between two DCs.

drs showrepl
Show replication status.

Administer DS ACLs

dsacl set
Modify access list on a directory object.

Manage Flexible Single Master Operations (FSMO).

fsmo seize [options] Seize the role.

fsmo show
Show the roles.

fsmo transfer [options] Transfer the role.

Manage Group Policy Objects (GPO).

gpo create displayname [options] Create an empty GPO.

gpo del gpo [options] Delete GPO.

gpo dellink container_dn gpo [options] Delete GPO link from a container.

gpo fetch gpo [options] Download a GPO.

gpo getinheritance container_dn [options] Get inheritance flag for a container.

gpo getlink container_dn [options] List GPO Links for a container.

gpo list username [options] List GPOs for an account.

gpo listall
List all GPOs.

gpo listcontainers gpo [options] List all linked containers for a GPO.

gpo setinheritance container_dn block|inherit [options] Set inheritance flag on a container.

gpo setlink container_dn gpo [options] Add or Update a GPO link to a container.

gpo show gpo [options] Show information for a GPO.

Manage groups.

group add groupname [options] Create a new AD group.

group addmembers groupname members [options] Add members to an AD group.

group delete groupname [options] Delete an AD group.

group list
List all groups.

group listmembers groupname [options] List all members of the specified AD group.

group removemembers groupname members [options] Remove members from the specified AD group.

ldapcmp URL1 URL2 domain|configuration|schema|dnsdomain|dnsforest [options] Compare two LDAP databases.

Manage NT ACLs.

ntacl get file [options] Get ACLs on a file.

ntacl set acl file [options] Set ACLs on a file.

ntacl sysvolcheck
Check sysvol ACLs match defaults (including correct ACLs on GPOs).

ntacl sysvolreset
Reset sysvol ACLs to defaults (including correct ACLs on GPOs).

Manage Read-Only Domain Controller (RODC).

rodc preload SID|DN|accountname [options] Preload one account for an RODC.

Manage sites.

sites create site [options] Create a new site.

sites remove site [options] Delete an existing site.

Manage Service Principal Names (SPN).

spn add name user [options] Create a new SPN.

spn delete name [user] [options] Delete an existing SPN.

spn list user [options] List SPNs of a given user.

Check the syntax of the configuration file.

Retrieve the time on a server.

Manage users.

user add username [password] Create a new user. Please note that this subcommand is deprecated and
available for compatibility reasons only. Please use samba-tool user
create instead.

user create username [password] Create a new user in the Active Directory Domain.

user delete username [options] Delete an existing user account.

user disable username
Disable an user account.

user enable username
Enable an user account.

user list
List all users.

user password [options] Change password for an user account (the one provided in

user setexpiry username [options] Set the expiration of an user account.

user setpassword username [options] Sets or resets the password of an user account.

vampire [options] domain
Join and synchronise a remote AD domain to the local server. Please
note that samba-tool vampire is deprecated, please use samba-tool
domain join instead.

Gives usage information.

This man page is complete for version 4 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.

The samba-tool manpage was written by Karolin Seeger.

Samba 4.3 09/23/2016 SAMBA-TOOL(8)