NAME

       idmap_rfc2307 - Samba's idmap_rfc2307 Backend for Winbind

DESCRIPTION

       The idmap_rfc2307 plugin provides a way for winbind to read id mappings from records in an
       LDAP server as defined in RFC 2307. The LDAP server can be stand-alone or the LDAP server
       provided by the AD server. An AD server is always required to provide the mapping between
       name and SID, and the LDAP server is queried for the mapping between name and uid/gid.
       This module implements only the "idmap" API, and is READONLY.

       Mappings must be provided in advance by the administrator by creating the user accounts in
       the Active Directory server and the posixAccount and posixGroup objects in the LDAP
       server. The names in the Active Directory server and in the LDAP server have to be the
       same.

       This id mapping approach allows the reuse of existing LDAP authentication servers that
       store records in the RFC 2307 format.

       When connecting to the LDAP server provided by an AD server, the parameter ldap ssl ads
       determines whether SSL should be used. When using a stand-alone LDAP server, ldap ssl
       applies.

IDMAP OPTIONS

       range = low - high
           Defines the available matching UID and GID range for which the backend is
           authoritative. Note that the range acts as a filter. If specified any UID or GID
           stored in AD that fall outside the range is ignored and the corresponding map is
           discarded. It is intended as a way to avoid accidental UID/GID overlaps between local
           and remotely defined IDs.

       ldap_server = <ad | stand-alone >
           Defines the type of LDAP server to use. This can either be the LDAP server provided by
           the Active Directory server (ad) or a stand-alone LDAP server.

       bind_path_user
           Specifies the search base where user objects can be found in the LDAP server.

       bind_path_group
           Specifies the search base where group objects can be found in the LDAP server.

       user_cn = <yes | no>
           Query cn attribute instead of uid attribute for the user name in LDAP. This option is
           not required, the default is no.

       realm
           Append @realm to cn for groups (and users if user_cn is set) in LDAP queries. This
           option is not required, the default is not to append the realm.

       ldap_domain
           When using the LDAP server in the Active Directory server, this allows one to specify
           the domain where to access the Active Directory server. This allows using trust
           relationships while keeping all RFC 2307 records in one place. This parameter is
           optional, the default is to access the AD server in the current domain to query LDAP
           records.

       ldap_url
           When using a stand-alone LDAP server, this parameter specifies the ldap URL for
           accessing the LDAP server.

       ldap_user_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, an anonymous bind
           will be performed.

EXAMPLES

       The following example shows how to retrieve id mappings from a stand-alone LDAP server.
       This example also shows how to leave a small non conflicting range for local id allocation
       that may be used in internal backends like BUILTIN.

                [global]
                idmap config * : backend = tdb
                idmap config * : range = 1000000-1999999

                idmap config DOMAIN : backend = rfc2307
                idmap config DOMAIN : range = 2000000-2999999
                idmap config DOMAIN : ldap_server = stand-alone
                idmap config DOMAIN : ldap_url = ldap://ldap1.example.com
                idmap config DOMAIN : ldap_user_dn = cn=ldapmanager,dc=example,dc=com
                idmap config DOMAIN : bind_path_user = ou=People,dc=example,dc=com
                idmap config DOMAIN : bind_path_group = ou=Group,dc=example,dc=com

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.