slapo-memberof (5)
NAME
slapo-memberof - Reverse Group Membership overlay to slapdSYNOPSIS
/etc/ldap/slapd.confDESCRIPTION
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.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 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. 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/ldap/slapd.conf
- default slapd configuration file