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175 lines
4.8 KiB
Groff
175 lines
4.8 KiB
Groff
.TH SLAPD.OVERLAYS 5 "RELEASEDATE" "OpenLDAP LDVERSION"
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.\" Copyright 2006-2015 The OpenLDAP Foundation All Rights Reserved.
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.\" Copying restrictions apply. See COPYRIGHT/LICENSE.
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.\" $OpenLDAP$
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.SH NAME
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slapd.overlays \- overlays for slapd, the stand-alone LDAP daemon
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.SH DESCRIPTION
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The
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.BR slapd (8)
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daemon can use a variety of different overlays to alter or extend
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the normal behavior of a database backend.
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Overlays may be compiled statically into slapd, or when module support
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is enabled, they may be dynamically loaded. Most of the overlays
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are only allowed to be configured on individual databases, but some
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may also be configured globally.
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Configuration options for each overlay are documented separately in the
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corresponding
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.BR slapo\-<overlay> (5)
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manual pages.
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.TP
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.B accesslog
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Access Logging.
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This overlay can record accesses to a given backend database on another
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database.
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.TP
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.B auditlog
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Audit Logging.
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This overlay records changes on a given backend database to an LDIF log
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file.
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By default it is not built.
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.TP
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.B chain
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Chaining.
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This overlay allows automatic referral chasing when a referral would
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have been returned, either when configured by the server or when
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requested by the client.
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.TP
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.B collect
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Collective Attributes.
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This overlay implements RFC 3671 collective attributes; these
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attributes share common values over all the members of the collection
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as inherited from an ancestor entry.
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.TP
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.B constraint
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Constraint.
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This overlay enforces a regular expression constraint on all values
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of specified attributes. It is used to enforce a more rigorous
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syntax when the underlying attribute syntax is too general.
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.TP
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.B dds
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Dynamic Directory Services.
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This overlay supports dynamic objects, which have a limited life after
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which they expire and are automatically deleted.
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.TP
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.B dyngroup
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Dynamic Group.
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This is a demo overlay which extends the Compare operation to detect
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members of a dynamic group.
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It has no effect on any other operations.
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.TP
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.B dynlist
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Dynamic List.
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This overlay allows expansion of dynamic groups and more.
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.TP
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.B memberof
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MemberOf.
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This overlay maintains automatic reverse group membership values,
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typically stored in an attribute called memberOf.
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.TP
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.B pbind
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Proxybind.
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This overlay forwards simple bind requests on a local database to a
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remote LDAP server.
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.TP
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.B pcache
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Proxycache.
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This overlay allows caching of LDAP search requests in a local database.
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It is most often used with the
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.BR slapd\-ldap (5)
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or
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.BR slapd\-meta (5)
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backends.
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.TP
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.B ppolicy
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Password Policy.
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This overlay provides a variety of password control mechanisms,
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e.g. password aging, password reuse and duplication control, mandatory
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password resets, etc.
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.TP
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.B refint
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Referential Integrity.
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This overlay can be used with a backend database such as
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.BR slapd\-bdb (5)
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to maintain the cohesiveness of a schema which utilizes reference
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attributes.
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.TP
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.B retcode
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Return Code.
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This overlay is useful to test the behavior of clients when
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server-generated erroneous and/or unusual responses occur.
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.TP
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.B rwm
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Rewrite/remap.
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This overlay is experimental.
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It performs basic DN/data rewrite and
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objectClass/attributeType mapping.
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.TP
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.B sssvlv
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Server Side Sorting and Virtual List Views.
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This overlay implements the RFC2891 server-side sorting control and
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virtual list view controls, and replaces the RFC2696 paged-results
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implementation to ensure it works with the sorting technique.
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.TP
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.B syncprov
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Syncrepl Provider.
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This overlay implements the provider-side support for
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.B syncrepl
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replication, including persistent search functionality.
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.TP
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.B translucent
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Translucent Proxy.
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This overlay can be used with a backend database such as
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.BR slapd\-bdb (5)
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to create a "translucent proxy".
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Content of entries retrieved from a remote LDAP server can be partially
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overridden by the database.
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.TP
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.B unique
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Attribute Uniqueness.
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This overlay can be used with a backend database such as
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.BR slapd\-bdb (5)
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to enforce the uniqueness of some or all attributes within a subtree.
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.TP
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.B valsort
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Value Sorting.
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This overlay can be used to enforce a specific order for the values
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of an attribute when it is returned in a search.
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.SH FILES
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.TP
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ETCDIR/slapd.conf
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default slapd configuration file
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.TP
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ETCDIR/slapd.d
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default slapd configuration directory
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.SH SEE ALSO
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.BR ldap (3),
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.BR slapo\-accesslog (5),
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.BR slapo\-auditlog (5),
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.BR slapo\-chain (5),
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.BR slapo\-collect (5),
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.BR slapo\-constraint (5),
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.BR slapo\-dds (5),
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.BR slapo\-dyngroup (5),
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.BR slapo\-dynlist (5),
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.BR slapo\-memberof (5),
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.BR slapo\-pbind (5),
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.BR slapo\-pcache (5),
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.BR slapo\-ppolicy (5),
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.BR slapo\-refint (5),
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.BR slapo\-retcode (5),
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.BR slapo\-rwm (5),
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.BR slapo\-sssvlv (5),
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.BR slapo\-syncprov (5),
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.BR slapo\-translucent (5),
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.BR slapo\-unique (5).
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.BR slapo\-valsort (5).
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.BR slapd\-config (5),
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.BR slapd.conf (5),
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.BR slapd.backends (5),
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.BR slapd (8).
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"OpenLDAP Administrator's Guide" (http://www.OpenLDAP.org/doc/admin/)
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.SH ACKNOWLEDGEMENTS
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.so ../Project
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