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SLAPO-MEMBEROF(5) File Formats Manual SLAPO-MEMBEROF(5)
NAME
slapo-memberof - Reverse Group Membership overlay to slapd
SYNOPSIS
/etc/openldap/slapd.conf
DESCRIPTION
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.
CONFIGURATION
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
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 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-
base.
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. Replica servers should be configured with their own instances of
the memberOf overlay if it is desired to maintain these memberOf
attributes on the replicas. 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
/etc/openldap/slapd.conf
default slapd configuration file
SEE ALSO
slapd.conf(5), slapd-config(5), slapd(8). The slapo-memberof(5) over-
lay supports dynamic configuration via back-config.
ACKNOWLEDGEMENTS
This module was written in 2005 by Pierangelo Masarati for SysNet
s.n.c.
OpenLDAP 2.4.46 2018/03/22 SLAPO-MEMBEROF(5)
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