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SLAPD.BACKENDS(5) File Formats Manual SLAPD.BACKENDS(5) NAME slapd.backends - backends for slapd, the stand-alone LDAP daemon DESCRIPTION The slapd(8) daemon can use a variety of different backends for serving LDAP requests. Backends may be compiled statically into slapd, or when module support is enabled, they may be dynamically loaded. Multiple in- stances of a backend can be configured, to serve separate databases from the same slapd server. Configuration options for each backend are documented separately in the corresponding slapd-<backend>(5) manual pages. asyncmeta This backend performs basic LDAP proxying with respect to a set of remote LDAP servers. It is an enhancement of the ldap backend that operates asynchronously, to prevent tying up slapd threads while waiting for operations to complete. config This backend is used to manage the configuration of slapd at run- time. Unlike other backends, only a single instance of the config backend may be defined. It also instantiates itself automatically, so it is always present even if not explicitly defined in the slapd.conf(5) file. dnssrv This backend is experimental. It serves up referrals based upon SRV resource records held in the Domain Name System. ldap This backend acts as a proxy to forward incoming requests to another LDAP server. ldif This database uses the filesystem to build the tree structure of the database, using plain ascii files to store data. Its usage should be limited to very simple databases, where performance is not a re- quirement. This backend also supports subtree renames. mdb This is the recommended primary backend. This backend uses OpenL- DAP's own MDB transactional database library. This backend also supports subtree renames. meta This backend performs basic LDAP proxying with respect to a set of remote LDAP servers. It is an enhancement of the ldap backend. monitor This backend provides information about the running status of the slapd daemon. Only a single instance of the monitor backend may be defined. null Operations in this backend succeed but do nothing. passwd This backend is provided for demonstration purposes only. It serves up user account information from the system passwd(5) file. perl This backend embeds a perl(1) interpreter into slapd. It runs Perl subroutines to implement LDAP operations. This backend is depre- cated. relay This backend is experimental. It redirects LDAP operations to an- other database in the same server, based on the naming context of the request. Its use requires the rwm overlay (see slapo-rwm(5) for details) to rewrite the naming context of the request. It is pri- marily intended to implement virtual views on databases that actu- ally store data. sql This backend is experimental and deprecated. It services LDAP re- quests from an SQL database. wiredtiger This backend is experimental. It services LDAP requests from a wiredtiger database. FILES /usr/local/etc/openldap/slapd.conf default slapd configuration file /usr/local/etc/openldap/slapd.d default slapd configuration directory SEE ALSO ldap(3), slapd-asyncmeta(5), slapd-config(5), slapd-dnssrv(5), slapd-ldap(5), slapd-ldif(5), slapd-mdb(5), slapd-meta(5), slapd-moni- tor(5), slapd-null(5), slapd-passwd(5), slapd-perl(5), slapd-relay(5), slapd-sql(5), slapd-wt(5), slapd.conf(5), slapd.overlays(5), slapd(8). "OpenLDAP Administrator's Guide" (http://www.OpenLDAP.org/doc/admin/) ACKNOWLEDGEMENTS OpenLDAP Software is developed and maintained by The OpenLDAP Project <http://www.openldap.org/>. OpenLDAP Software is derived from the Univer- sity of Michigan LDAP 3.3 Release. OpenLDAP 2.6.13 2026/03/09 SLAPD.BACKENDS(5)
NAME | DESCRIPTION | FILES | SEE ALSO | ACKNOWLEDGEMENTS
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