1 .TH SLAPD.BACKENDS 5 "RELEASEDATE" "OpenLDAP LDVERSION"
2 .\" Copyright 2006-2011 The OpenLDAP Foundation All Rights Reserved.
3 .\" Copying restrictions apply. See COPYRIGHT/LICENSE.
6 slapd.backends \- backends for slapd, the stand-alone LDAP daemon
10 daemon can use a variety of different backends for serving LDAP requests.
11 Backends may be compiled statically into slapd, or when module support
12 is enabled, they may be dynamically loaded. Multiple instances of a
13 backend can be configured, to serve separate databases from the same
17 Configuration options for each backend are documented separately in the
19 .BR slapd\-<backend> (5)
23 This was the recommended primary backend through OpenLDAP 2.3, but it has
24 since been superseded by the
26 backend. It takes care to configure it properly.
27 It uses the transactional database interface of the Oracle Berkeley
28 DB (BDB) package to store data.
31 This backend is used to manage the configuration of slapd at run-time.
32 Unlike other backends, only a single instance of the
34 backend may be defined. It also instantiates itself automatically,
35 so it is always present even if not explicitly defined in the
40 This backend is experimental.
41 It serves up referrals based upon SRV resource records held in the
45 This is the recommended primary backend for a normal slapd database.
49 backend that uses a hierarchical database
51 This layout stores entry DNs more efficiently than the
54 using less space and requiring less work to create, delete, and rename
55 entries. It is also one of the few backends to support subtree renames.
59 This backend acts as a proxy to forward incoming requests to another
63 This database uses the filesystem to build the tree structure
64 of the database, using plain ascii files to store data.
65 Its usage should be limited to very simple databases, where performance
66 is not a requirement. This backend also supports subtree renames.
69 This backend performs basic LDAP proxying with respect to a set of
70 remote LDAP servers. It is an enhancement of the
75 This backend provides information about the running status of the slapd
76 daemon. Only a single instance of the
78 backend may be defined.
81 This backend is experimental.
82 It uses the transactional database interface of the MySQL Cluster Engine
86 Operations in this backend succeed but do nothing.
89 This backend is provided for demonstration purposes only.
90 It serves up user account information from the system
97 interpreter into slapd.
98 It runs Perl subroutines to implement LDAP operations.
101 This backend is experimental.
102 It redirects LDAP operations to another database
103 in the same server, based on the naming context of the request.
108 for details) to rewrite the naming context of the request.
109 It is primarily intended to implement virtual views on databases
110 that actually store data.
113 This backend executes external programs to implement LDAP operations.
114 It is primarily intended to be used in prototypes.
117 This backend is experimental.
118 It services LDAP requests from an SQL database.
122 default slapd configuration file
125 default slapd configuration directory
129 .BR slapd\-config (5),
130 .BR slapd\-dnssrv (5),
135 .BR slapd\-monitor (5),
137 .BR slapd\-passwd (5),
139 .BR slapd\-relay (5),
140 .BR slapd\-shell (5),
143 .BR slapd.overlays (5),
145 "OpenLDAP Administrator's Guide" (http://www.OpenLDAP.org/doc/admin/)