NAME

       slapo-refint - Referential Integrity overlay to slapd

SYNOPSIS

       /etc/ldap/slapd.conf

DESCRIPTION

       The Referential Integrity overlay can be used with a backend database such as slapd-mdb(5)
       to maintain the cohesiveness of a schema which utilizes reference attributes.

       Integrity is maintained by updating database records which contain the named attributes to
       match the results of a modrdn or delete operation. For example, if the integrity attribute
       were      configured      as       manager,       deletion       of       the       record
       "uid=robert,ou=people,dc=example,dc=com"  would  trigger  a  search  for all other records
       which have a manager attribute containing that DN. Entries matching that search would have
       their    manager    attribute    removed.     Or,    renaming   the   same   record   into
       "uid=george,ou=people,dc=example,dc=com" would trigger a  search  for  all  other  records
       which  have  a  manager  attribute containing that DN.  Entries matching that search would
       have their manager attribute deleted and replaced by the new DN.

       rootdn must be set for the database.  refint runs as the rootdn to gain access to make its
       updates.  rootpw is not needed.

CONFIGURATION

       These  slapd.conf  options apply to the Referential Integrity overlay.  They should appear
       after the overlay directive.

       refint_attributes <attribute> [...]
              Specify one or more attributes for which integrity will be maintained as  described
              above.

       refint_nothing <string>
              Specify  an  arbitrary  value to be used as a placeholder when the last value would
              otherwise be deleted from an attribute. This can  be  useful  in  cases  where  the
              schema  requires  the  existence of an attribute for which referential integrity is
              enforced. The attempted deletion of a required attribute will otherwise  result  in
              an Object Class Violation, causing the request to fail.  The string must be a valid
              DN.

       refint_modifiersname <DN>
              Specify the DN to be used  as  the  modifiersName  of  the  internal  modifications
              performed by the overlay.  It defaults to "cn=Referential Integrity Overlay".

       Modifications  performed  by  this  overlay  are  not  propagated during replication. This
       overlay must be configured identically on replication consumers in order to maintain  full
       synchronization with the provider.

FILES

       /etc/ldap/slapd.conf
              default slapd configuration file

SEE ALSO

       slapd.conf(5), slapd-config(5).

ACKNOWLEDGEMENTS

       OpenLDAP    Software    is    developed   and   maintained   by   The   OpenLDAP   Project
       <http://www.openldap.org/>.  OpenLDAP Software is derived from the University of  Michigan
       LDAP 3.3 Release.