idmap_ldap man page on Mandriva

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IDMAP_LDAP(8)		  System Administration tools		 IDMAP_LDAP(8)

NAME
       idmap_ldap - Samba´s idmap_ldap Backend for Winbind

DESCRIPTION
       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. The allocator can be provided by the
       idmap_ldap backend itself or by any other allocating backend like
       idmap_tdb or idmap_tdb2. This is configured with the parameter idmap
       alloc backend.

       Note that in order for this (or any other allocating) backend to
       function at all, the default backend needs to be writeable. The ranges
       used for uid and gid allocation are the default ranges configured by
       "idmap uid" and "idmap gid".

       Furthermore, since there is only one global allocating backend
       responsible for all domains using writeable idmap backends, any
       explicitly configured domain with idmap backend ldap should have the
       same range as the default range, since it needs to use the global uid /
       gid allocator. See the example below.

IDMAP OPTIONS
       ldap_base_dn = DN
	   Defines the directory base suffix to use when searching for
	   SID/uid/gid mapping entries. If not defined, idmap_ldap will
	   default to using the "ldap idmap suffix" option from smb.conf.

       ldap_user_dn = DN
	   Defines the user DN to be used for authentication. If absent an
	   anonymous bind will be performed.

       ldap_url = ldap://server/
	   Specifies the LDAP server to use when searching for existing
	   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. If the parameter is absent, Winbind fails
	   over to use the "idmap uid" and "idmap gid" options from smb.conf.

IDMAP ALLOC OPTIONS
       ldap_base_dn = DN
	   Defines the directory base suffix under which new SID/uid/gid
	   mapping entries should be stored. If not defined, idmap_ldap will
	   default to using the "ldap idmap suffix" option from smb.conf.

       ldap_user_dn = DN
	   Defines the user DN to be used for authentication. If absent an
	   anonymous bind will be performed.

       ldap_url = ldap://server/
	   Specifies the LDAP server to which modify/add/delete requests
	   should be sent. If not defined, idmap_ldap will assume that
	   ldap://localhost/ should be used.

EXAMPLES
       The follow sets of a LDAP configuration which uses two LDAP
       directories, one for storing the ID mappings and one for retrieving new
       IDs.

		[global]
		idmap backend = ldap:ldap://localhost/
		idmap uid = 1000000-1999999
		idmap gid = 1000000-1999999

		idmap alloc backend = ldap
		idmap alloc config : ldap_url = ldap://id-master/
		idmap alloc config : ldap_base_dn = ou=idmap,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.

Samba 3.5			  05/17/2010			 IDMAP_LDAP(8)
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