SLAPD.OVERLAYS(5)

NAME
slapd.overlays - overlays for slapd, the stand-alone LDAP daemon

DESCRIPTION
The slapd(8) daemon can use a variety of different overlays to alter or extend the normal behavior of a database backend. Overlays may be compiled statically into slapd, or when module support is enabled, they may be dynamically loaded. Most of the overlays are only allowed to be configured on individual databases, but some may also be configured globally. Configuration options for each overlay are documented separately in the corresponding slapo-<overlay>(5) manual pages.

accesslog
    Access Logging. This overlay can record accesses to a given backend database on another database.

auditlog
    Audit Logging. This overlay records changes on a given backend database to an LDIF log file. By default it is not built.

chain
    Chaining. This overlay allows automatic referral chasing when a referral would have been returned, either when configured by the server or when requested by the client.

dyngroup
    Dynamic Group. This is a demo overlay which extends the Compare operation to detect members of a dynamic group. It has no effect on any other operations.

dynlist
    Dynamic List. This overlay allows expansion of dynamic groups and more.

pcache
    Proxycache. This overlay allows caching of LDAP search requests in a local database. It is most often used with the slapd-ldap(5) or slapd-meta(5) backends.

ppolicy
    Password Policy. This overlay provides a variety of password control mechanisms, e.g. password aging, password reuse and duplication control, mandatory password resets, etc.

refint
    Referential Integrity. This overlay can be used with a backend database such as slapd-bdb(5) to maintain the cohesiveness of a schema which utilizes reference attributes.

retcode
    Return Code. This overlay is useful to test the behavior of clients when server-generated erroneous and/or unusual responses occur.

rwm Rewrite/remap. This overlay is experimental. It performs basic DN/data rewrite and objectClass/attributeType mapping.

syncprov
    Syncrepl Provider. This overlay implements the provider-side support for syncrepl replication, including persistent search functionality.

translucent
    Translucent Proxy. This overlay can be used with a backend database such as slapd-bdb(5) to create a "translucent proxy". Content of entries retrieved from a remote LDAP server can be partially overridden by the database.

unique
    Attribute Uniqueness. This overlay can be used with a backend database such as slapd-bdb(5) to enforce the uniqueness of some or all attributes within a subtree.

FILES

ETCDIR/slapd.conf
    default slapd configuration file

ETCDIR/slapd.d
    default slapd configuration directory

SEE ALSO
ldap(3), slapo-accesslog(5), slapo-auditlog(5), slapo-chain(5), slapo-dynlist(5), slapo-pcache(5), slapo-ppolicy(5), slapo-refint(5), slapo-retcode(5), slapo-rwm(5), slapo-syncprov(5), slapo-translucent(5), slapo-unique(5). slapd-config(5), slapd.conf(5), slapd.backends(5), slapd(8). "OpenLDAP Administrator's Guide" (http://www.OpenLDAP.org/doc/admin/)

ACKNOWLEDGEMENTS