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idmap_ldap(8)                                                    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.  The
       module implements both the "idmap" and "idmap alloc" APIs.


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 back-
          end is authoritative. Note that the range commonly matches the allo-
          cation range due to the fact that the same backend  will  store  and
          retrieve  SID/uid/gid  mapping  entries. If the parameter is absent,
          Winbind fail 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 map-
          ping 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://local-
          host/ should be used.

       range = low - high
          Defines the available matching uid and gid range from which winbindd
          can  allocate for users and groups. If the parameter is absent, Win-
          bind fail over to use the "idmap uid" and "idmap gid"  options  from
          smb.conf.


EXAMPLES

       The  follow sets of a LDAP configuration which uses a slave server run-
       ning on localhost for fast fetching SID/gid/uid  mappings,  it  implies
       correct  configuration of referrals. The idmap alloc backend is pointed
       directly to the master to skip the referral (and  consequent  reconnec-
       tion  to the master) that the slave would return as allocation requires
       writing on the master.


            [global]
                idmap domains = ALLDOMAINS
                idmap config ALLDOMAINS:default      = yes
                idmap config ALLDOMAINS:backend      = ldap
                idmap config ALLDOMAINS:ldap_base_dn = ou=idmap,dc=example,dc=com
                idmap config ALLDOMAINS:ldap_url     = ldap://localhost/
                idmap config ALLDOMAINS:range        = 10000 - 50000

                idmap alloc backend = ldap
                idmap alloc config:ldap_base_dn = ou=idmap,dc=example,dc=com
                idmap alloc config:ldap_url     = ldap://master.example.com/
                idmap alloc config:range        = 10000 - 50000



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.




                                                                 idmap_ldap(8)

Mac OS X 10.6 - Generated Thu Sep 17 20:25:56 CDT 2009
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