NAME
idmap_ldap - Samba's idmap_ldap Backend for WinbindDESCRIPTION
The idmap_ldap plugin provides a means for Winbind to store and retrieve SID/uid/gid mapping tables in an LDAP directory service. In contrast to read only backends like idmap_rid, it is an allocating backend: This means that it needs to allocate new user and group IDs in order to create new mappings.IDMAP OPTIONS
ldap_base_dn = DNDefines the directory base suffix to use for
SID/uid/gid mapping entries. If not defined, idmap_ldap will default to using
the "ldap idmap suffix" option from /etc/samba/smb.conf.
ldap_user_dn = DN
Defines the user DN to be used for
authentication. The secret for authenticating this user should be stored with
net idmap secret (see net(8)). If absent, the ldap credentials from the
ldap passdb configuration are used, and if these are also absent, an anonymous
bind will be performed as last fallback.
ldap_url = ldap://server/
Specifies the LDAP server to use for
SID/uid/gid map entries. If not defined, idmap_ldap will assume that
ldap://localhost/ should be used.
range = low - high
Defines the available matching uid and gid
range for which the backend is authoritative.
EXAMPLES
The following example shows how an ldap directory is used as the default idmap backend. It also configures the idmap range and base directory suffix. The secret for the ldap_user_dn has to be set with "net idmap secret '*' password".[global] idmap config * : backend = ldap idmap config * : range = 1000000-1999999 idmap config * : ldap_url = ldap://localhost/ idmap config * : ldap_base_dn = ou=idmap,dc=example,dc=com idmap config * : ldap_user_dn = cn=idmap_admin,dc=example,dc=com
[global] # "backend = tdb" is redundant here since it is the default idmap config * : backend = tdb idmap config * : range = 1000000-1999999 idmap config DOM1 : backend = ldap idmap config DOM1 : range = 2000000-2999999 idmap config DOM1 : read only = yes idmap config DOM1 : ldap_url = ldap://server/ idmap config DOM1 : ldap_base_dn = ou=idmap,dc=dom1,dc=example,dc=com idmap config DOM1 : ldap_user_dn = cn=idmap_admin,dc=dom1,dc=example,dc=com
NOTE
In order to use authentication against ldap servers you may need to provide a DN and a password. To avoid exposing the password in plain text in the configuration file we store it into a security store. The "net idmap " command is used to store a secret for the DN specified in a specific idmap domain.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.10/10/2023 | Samba 4.17.12-Debian |