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Updated: Wednesday, February 9, 2022

slapo-memberof (5oldap)


slapo-memberof - Reverse Group Membership overlay to slapd




SLAPO-MEMBEROF(5oldap)                                  SLAPO-MEMBEROF(5oldap)

       slapo-memberof - Reverse Group Membership overlay to slapd


       The memberof overlay to slapd(8) allows automatic reverse group member-
       ship 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.

       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  data-
              base; see slapd.conf(5) for details.

       The following slapd.conf configuration options are defined for the mem-
       berof overlay.

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

       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  con-
              tains  the names of the groups an entry is member of; it must be
              DN-valued.  Its contents are automatically updated by the  over-
              lay.  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 data-

       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 parame-
              ter 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  repli-
       cated.  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 compati-
       ble with syncrepl based replication, and should not be used in a repli-
       cated  environment.  An  alternative is to use slapo-dynlist to emulate
       slapo-memberOf behavior.

              default slapd configuration file

       See attributes(7) for descriptions of the following attributes:

       |ATTRIBUTE TYPE |       ATTRIBUTE VALUE         |
       |Availability   | service/network/ldap/openldap |
       |Stability      | Pass-through uncommitted      |

       slapd.conf(5), slapd-config(5), slapd(8).  The slapo-memberof(5)  over-
       lay supports dynamic configuration via back-config.

       This  module  was  written  in  2005  by Pierangelo Masarati for SysNet

       Source code for open source software components in Oracle  Solaris  can
       be found at https://www.oracle.com/downloads/opensource/solaris-source-

       This    software    was    built    from    source     available     at
       https://github.com/oracle/solaris-userland.    The  original  community
       source was downloaded from   ftp://ftp.openldap.org/pub/OpenLDAP/openl-

       Further information about this software can be found on the open source
       community website at http://www.openldap.org/.

OpenLDAP 2.4.57                   2021/01/18            SLAPO-MEMBEROF(5oldap)