slapo-memberof(5) — Linux manual page


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

NAME         top

       slapo-memberof - Reverse Group Membership overlay to slapd

SYNOPSIS         top


DESCRIPTION         top

       The memberof overlay to slapd(8) allows automatic reverse group
       membership maintenance.  Any time a group entry is modified, its
       members are modified as appropriate in order to keep a DN-valued
       "is member of" attribute updated with the DN of the group.

       Note that this overlay is deprecated and support will be dropped
       in future OpenLDAP releases. Installations should use the dynlist
       overlay instead. Using this overlay in a replicated environment
       is especially discouraged.


       The config directives that are specific to the memberof overlay
       must be prefixed by memberof-, to avoid potential conflicts with
       directives specific to the underlying database or to other
       stacked overlays.

       overlay memberof
              This directive adds the memberof overlay to the current
              database; see slapd.conf(5) for details.

       The following slapd.conf configuration options are defined for
       the memberof overlay.

       memberof-group-oc <group-oc>
              The value <group-oc> is the name of the objectClass that
              triggers the reverse group membership update.  It defaults
              to groupOfNames.

       memberof-member-ad <member-ad>
              The value <member-ad> is the name of the attribute that
              contains the names of the members in the group objects; it
              must be DN-valued.  It defaults to member.

       memberof-memberof-ad <memberof-ad>
              The value <memberof-ad> is the name of the attribute that
              contains the names of the groups an entry is member of; it
              must be DN-valued.  Its contents are automatically updated
              by the overlay.  It defaults to memberOf.

       memberof-dn <dn>
              The value <dn> contains the DN that is used as
              modifiersName for internal modifications performed to
              update the reverse group membership.  It defaults to the
              rootdn of the underlying database.

       memberof-dangling {ignore, drop, error}
              This option determines the behavior of the overlay when,
              during a modification, it encounters dangling references.
              The default is ignore, which may leave dangling
              references.  Other options are drop, which discards those
              modifications that would result in dangling references,
              and error, which causes modifications that would result in
              dangling references to fail.

       memberof-dangling-error <error-code>
              If memberof-dangling is set to error, this configuration
              parameter can be used to modify the response code returned
              in case of violation.  It defaults to "constraint
              violation", but other implementations are known to return
              "no such object" instead.

       memberof-refint {true|FALSE}
              This option determines whether the overlay will try to
              preserve referential integrity or not.  If set to TRUE,
              when an entry containing values of the "is member of"
              attribute is modified, the corresponding groups are
              modified as well.

       The memberof overlay may be used with any backend that provides
       full read-write functionality, but it is mainly intended for use
       with local storage backends. The maintenance operations it
       performs are internal to the server on which the overlay is
       configured and are never replicated. Consumer servers should be
       configured with their own instances of the memberOf overlay if it
       is desired to maintain these memberOf attributes on the
       consumers.  Note that slapo-memberOf is not compatible with
       syncrepl based replication, and should not be used in a
       replicated environment. An alternative is to use slapo-dynlist to
       emulate slapo-memberOf behavior.

FILES         top

              default slapd configuration file


       The memberof overlay has been reworked with the 2.5 release to
       use a consistent namespace as with other overlays. As a side-
       effect the following cn=config parameters are deprecated and will
       be removed in a future release: olcMemberOf is replaced with

SEE ALSO         top

       slapo-dynlist(5), slapd.conf(5), slapd-config(5), slapd(8).  The
       slapo-memberof(5) overlay supports dynamic configuration via


       This module was written in 2005 by Pierangelo Masarati for SysNet

COLOPHON         top

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Pages that refer to this page: slapd.overlays(5)slapo-dynlist(5)slapo-memberof(5)