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SLAPO-REFINT(5)		      File Formats Manual	       SLAPO-REFINT(5)

       slapo-refint - Referential Integrity overlay to slapd


       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  man-
       ager   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.  En-
       tries 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.

       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 main-
	      tained 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=Ref-
	      erential 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.

	      default slapd configuration file

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

       OpenLDAP	Software is developed and maintained by	The  OpenLDAP  Project
       <>.  OpenLDAP Software is derived from the Uni-
       versity of Michigan LDAP	3.3 Release.

OpenLDAP 2.6.3			  2022/07/14		       SLAPO-REFINT(5)


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