# $OpenLDAP$
-# Copyright 2005, The OpenLDAP Foundation, All Rights Reserved.
+# Copyright 2005-2008 The OpenLDAP Foundation, All Rights Reserved.
# COPYING RESTRICTIONS APPLY, see COPYRIGHT.
H1: Configuring slapd
Once the software has been built and installed, you are ready
to configure {{slapd}}(8) for use at your site. Unlike previous
-OpenLDAP releases, the slapd runtime configuration in 2.3 is
-fully LDAP-enabled and can be managed using the standard LDAP
+OpenLDAP releases, the slapd(8) runtime configuration in 2.3 (and later)
+is fully LDAP-enabled and can be managed using the standard LDAP
operations with data in {{TERM:LDIF}}. The LDAP configuration engine
allows all of slapd's configuration options to be changed on the fly,
generally without requiring a server restart for the changes
to take effect. The old style {{slapd.conf}}(5) file is still
-supported, but must be converted to the new {{slapd.d}}(5) format
+supported, but must be converted to the new {{slapd-config}}(5) format
to allow runtime changes to be saved. While the old style
configuration uses a single file, normally installed as
{{F:/usr/local/etc/openldap/slapd.conf}}, the new style
uses a slapd backend database to store the configuration. The
configuration database normally resides in the
-{{F:/usr/local/etc/openldap/slapd.d}} directory.
+{{F:/usr/local/etc/openldap/slapd.d}} directory. When
+converting from the slapd.conf format to slapd.d format, any
+include files will also be integrated into the resulting configuration
+database.
-An alternate configuration directory (or file) can be specified via a
-command-line option to {{slapd}}(8) or {{slurpd}}(8). This chapter
-describes the general format of the configuration system, followed by a
-detailed description of commonly used config settings.
+An alternate configuration directory (or file) can be specified via
+a command-line option to {{slapd}}(8). This chapter describes the
+general format of the configuration system, followed by a detailed
+description of commonly used config settings.
+
+Note: some of the backends and of the distributed overlays
+do not support runtime configuration yet. In those cases,
+the old style {{slapd.conf}}(5) file must be used.
H2: Configuration Layout
database definitions, and assorted other items. A sample config tree
is shown in Figure 5.1.
-!import "config_dit.gif"; align="center"; title="Sample configuration tree"
+!import "config_dit.png"; align="center"; title="Sample configuration tree"
FT[align="Center"] Figure 5.1: Sample configuration tree.
Other objects may be part of the configuration but were omitted from
the illustration for clarity.
-The {{slapd.d}} configuration tree has a very specific structure. The
+The {{slapd-config}} configuration tree has a very specific structure. The
root of the tree is named {{EX:cn=config}} and contains global configuration
settings. Additional settings are contained in separate child entries:
-* Include files
-.. Usually these are just pathnames left over from a converted
-{{EX:slapd.conf}} file.
-.. Otherwise use of Include files is deprecated.
* Dynamically loaded modules
.. These may only be used if the {{EX:--enable-modules}} option was
used to configure the software.
The usual rules for LDIF files apply to the configuration information:
Comment lines beginning with a '{{EX:#}}' character
-are ignored. If a line begins with white space, it is considered a
+are ignored. If a line begins with a single space, it is considered a
continuation of the previous line (even if the previous line is a
-comment). Entries are separated by blank lines.
+comment) and the single leading space is removed. Entries are separated by blank lines.
The general layout of the config LDIF is as follows:
A configuration directive may take arguments. If so, the arguments are
separated by white space. If an argument contains white space,
-the argument should be enclosed in double quotes {{EX:"like this"}}. If
-an argument contains a double quote or a backslash character `{{EX:\}}',
-the character should be preceded by a backslash character `{{EX:\}}'.
+the argument should be enclosed in double quotes {{EX:"like this"}}.
In the descriptions that follow, arguments that should be replaced
by actual text are shown in brackets {{EX:<>}}.
H2: Configuration Directives
This section details commonly used configuration directives. For
-a complete list, see the {{slapd.d}}(5) manual page. This section
+a complete list, see the {{slapd-config}}(5) manual page. This section
will treat the configuration directives in a top-down order, starting
with the global directives in the {{EX:cn=config}} entry. Each
directive will be described along with its default value (if any) and
>olcReferral: ldap://root.openldap.org
+H3: cn=module
+
+If support for dynamically loaded modules was enabled when configuring
+slapd, {{EX:cn=module}} entries may be used to specify sets of modules to load.
+Module entries must have the {{EX:olcModuleList}} objectClass.
-H3: cn=include
-An include entry holds the pathname of one include file. Include files
-are part of the old style slapd.conf configuration system and must be in
-slapd.conf format. Include files were commonly used to load schema
-specifications. While they are still supported, their use is deprecated.
-Include entries must have the {{EX:olcIncludeFile}} objectClass.
+H4: olcModuleLoad: <filename>
+Specify the name of a dynamically loadable module to load. The filename
+may be an absolute path name or a simple filename. Non-absolute names
+are searched for in the directories specified by the {{EX:olcModulePath}}
+directive.
-H4: olcInclude: <filename>
-This directive specifies that slapd should read additional
-configuration information from the given file.
+H4: olcModulePath: <pathspec>
-Note: You should be careful when using this directive - there is
-no small limit on the number of nested include directives, and no
-loop detection is done.
+Specify a list of directories to search for loadable modules. Typically the
+path is colon-separated but this depends on the operating system.
H4: Sample Entries
->dn: cn=include{0},cn=config
->objectClass: olcIncludeFile
->cn: include{0}
->olcInclude: ./schema/core.schema
+>dn: cn=module{0},cn=config
+>objectClass: olcModuleList
+>cn: module{0}
+>olcModuleLoad: /usr/local/lib/smbk5pwd.la
>
->dn: cn=include{1},cn=config
->objectClass: olcIncludeFile
->cn: include{1}
->olcInclude: ./schema/cosine.schema
+>dn: cn=module{1},cn=config
+>objectClass: olcModuleList
+>cn: module{1}
+>olcModulePath: /usr/local/lib:/usr/local/lib/slapd
+>olcModuleLoad: accesslog.la
+>olcModuleLoad: pcache.la
H3: cn=schema
objectClass.
-H4: olcAttributeTypes: <{{REF:RFC2252}} Attribute Type Description>
+H4: olcAttributeTypes: <{{REF:RFC4512}} Attribute Type Description>
This directive defines an attribute type.
Please see the {{SECT:Schema Specification}} chapter
for information regarding how to use this directive.
-H4: olcObjectClasses: <{{REF:RFC2252}} Object Class Description>
+H4: olcObjectClasses: <{{REF:RFC4512}} Object Class Description>
This directive defines an object class.
Please see the {{SECT:Schema Specification}} chapter for
>objectClass: olcSchemaConfig
>cn: test
>olcAttributeTypes: ( 1.1.1
-> NAME 'testAttr'
-> EQUALITY integerMatch
-> SYNTAX 1.3.6.1.4.1.1466.115.121.1.27 )
+> NAME 'testAttr'
+> EQUALITY integerMatch
+> SYNTAX 1.3.6.1.4.1.1466.115.121.1.27 )
>olcAttributeTypes: ( 1.1.2 NAME 'testTwo' EQUALITY caseIgnoreMatch
-> SUBSTR caseIgnoreSubstringsMatch SYNTAX 1.3.6.1.4.1.1466.115.121.1.44 )
+> SUBSTR caseIgnoreSubstringsMatch SYNTAX 1.3.6.1.4.1.1466.115.121.1.44 )
>olcObjectClasses: ( 1.1.3 NAME 'testObject'
-> MAY ( testAttr $ testTwo ) AUXILIARY )
+> MAY ( testAttr $ testTwo ) AUXILIARY )
H3: Backend-specific Directives
title="Table 5.2: Database Backends"
Types Description
bdb Berkeley DB transactional backend
+config Slapd configuration backend
dnssrv DNS SRV backend
+hdb Hierarchical variant of bdb backend
ldap Lightweight Directory Access Protocol (Proxy) backend
-ldbm Lightweight DBM backend
ldif Lightweight Data Interchange Format backend
meta Meta Directory backend
monitor Monitor backend
> olcBackend: bdb
-There are no other directives defined for this entry, so generally
-it will not be needed. However, specific backend types may define
-additional attributes for their particular use.
+There are no other directives defined for this entry. Specific backend
+types may define additional attributes for their particular use but so
+far none have ever been defined. As such, these directives usually do
+not appear in any actual configurations.
H4: Sample Entry
databases. Subsequent database definitions may also override some
frontend settings.
+The {{EX:config}} database is also special; both the {{EX:config}} and
+the {{EX:frontend}} databases are always created implicitly even if they
+are not explicitly configured, and they are created before any other
+databases.
+
\Example:
> olcDatabase: bdb
This marks the beginning of a new {{TERM:BDB}} database instance.
-H4: olcAccess: to <what> [ by <who> <accesslevel> <control> ]+
+H4: olcAccess: to <what> [ by <who> [<accesslevel>] [<control>] ]+
This directive grants access (specified by <accesslevel>) to a
set of entries and/or attributes (specified by <what>) by one or
-more requesters (specified by <who>).
+more requestors (specified by <who>).
See the {{SECT:Access Control}} section of this chapter for a
summary of basic usage.
> olcReadonly: FALSE
-H4: olcReplica
-
-> olcReplica: uri=ldap[s]://<hostname>[:<port>] | host=<hostname>[:<port>]
-> [bindmethod={simple|sasl}]
-> ["binddn=<DN>"]
-> [saslmech=<mech>]
-> [authcid=<identity>]
-> [authzid=<identity>]
-> [credentials=<password>]
-
-This directive specifies a replication site for this database for
-use with slurpd. The
-{{EX:uri=}} parameter specifies a scheme, a host and optionally a port where
-the slave slapd instance can be found. Either a domain name
-or IP address may be used for <hostname>. If <port> is not
-given, the standard LDAP port number (389 or 636) is used.
-
-{{EX:host}} is deprecated in favor of the {{EX:uri}} parameter.
-
-{{EX:uri}} allows the replica LDAP server to be specified as an LDAP
-URI such as {{EX:ldap://slave.example.com:389}} or
-{{EX:ldaps://slave.example.com:636}}.
-
-The {{EX:binddn=}} parameter gives the DN to bind as for updates
-to the slave slapd. It should be a DN which has read/write access
-to the slave slapd's database. It must also match the {{EX:updatedn}}
-directive in the slave slapd's config file. Generally, this DN
-{{should not}} be the same as the {{EX:rootdn}} of the master
-database. Since DNs are likely to contain embedded spaces, the
-entire {{EX:"binddn=<DN>"}} string should be enclosed in double
-quotes.
-
-The {{EX:bindmethod}} is {{EX:simple}} or {{EX:sasl}},
-depending on whether simple password-based authentication
-or {{TERM:SASL}} authentication is to be used when connecting
-to the slave slapd.
-
-Simple authentication should not be used unless adequate data
-integrity and confidentiality protections are in place (e.g. TLS
-or IPSEC). Simple authentication requires specification of
-{{EX:binddn}} and {{EX:credentials}} parameters.
-
-SASL authentication is generally recommended. SASL authentication
-requires specification of a mechanism using the {{EX:saslmech}} parameter.
-Depending on the mechanism, an authentication identity and/or
-credentials can be specified using {{EX:authcid}} and {{EX:credentials}}
-respectively. The {{EX:authzid}} parameter may be used to specify
-an authorization identity.
-
-See the chapter entitled {{SECT:Replication with slurpd}} for more
-information on how to use this directive.
-
-
-H4: olcReplogfile: <filename>
-
-This directive specifies the name of the replication log file to
-which slapd will log changes. The replication log is typically
-written by slapd and read by slurpd. Normally, this directive is
-only used if slurpd is being used to replicate the database.
-However, you can also use it to generate a transaction log, if
-slurpd is not running. In this case, you will need to periodically
-truncate the file, since it will grow indefinitely otherwise.
-
-See the chapter entitled {{SECT:Replication with slurpd}} for more
-information on how to use this directive.
-
-
H4: olcRootDN: <DN>
This directive specifies the DN that is not subject to
> olcRootPW: secret
-It is also permissible to provide a hash of the password in RFC 2307
-form. {{slappasswd}}(8) may be used to generate the password hash.
+It is also permissible to provide a hash of the password in
+{{REF:RFC2307}} form. {{slappasswd}}(8) may be used to generate
+the password hash.
\Example:
> [type=refreshOnly|refreshAndPersist]
> [interval=dd:hh:mm:ss]
> [retry=[<retry interval> <# of retries>]+]
-> [searchbase=<base DN>]
+> searchbase=<base DN>
> [filter=<filter str>]
> [scope=sub|one|base]
> [attrs=<attr list>]
> [credentials=<passwd>]
> [realm=<realm>]
> [secprops=<properties>]
+> [starttls=yes|critical]
+> [tls_cert=<file>]
+> [tls_key=<file>]
+> [tls_cacert=<file>]
+> [tls_cacertdir=<path>]
+> [tls_reqcert=never|allow|try|demand]
+> [tls_ciphersuite=<ciphers>]
+> [tls_crlcheck=none|peer|all]
+> [logbase=<base DN>]
+> [logfilter=<filter str>]
+> [syncdata=default|accesslog|changelog]
This directive specifies the current database as a replica of the
The master database is located at the replication provider site
specified by the {{EX:provider}} parameter. The replica database is
kept up-to-date with the master content using the LDAP Content
-Synchronization protocol. See {{EX:draft-zeilenga-ldup-sync-xx.txt}}
-({{a work in progress}}) for more information on the protocol.
+Synchronization protocol. See {{REF:RFC4533}}
+for more information on the protocol.
The {{EX:rid}} parameter is used for identification of the current
{{EX:syncrepl}} directive within the replication consumer server,
specification. The search specification includes {{EX:searchbase}},
{{EX:scope}}, {{EX:filter}}, {{EX:attrs}}, {{EX:attrsonly}},
{{EX:sizelimit}}, and {{EX:timelimit}} parameters as in the normal
-search specification. The syncrepl search specification has
-the same value syntax and the same default values as in the
-{{ldapsearch}}(1) client search tool.
-
-The LDAP Content Synchronization protocol has two operation
+search specification. The {{EX:searchbase}} parameter has no
+default value and must always be specified. The {{EX:scope}} defaults
+to {{EX:sub}}, the {{EX:filter}} defaults to {{EX:(objectclass=*)}},
+{{EX:attrs}} defaults to {{EX:"*,+"}} to replicate all user and operational
+attributes, and {{EX:attrsonly}} is unset by default. Both {{EX:sizelimit}}
+and {{EX:timelimit}} default to "unlimited", and only positive integers
+or "unlimited" may be specified.
+
+The {{TERM[expand]LDAP Sync}} protocol has two operation
types: {{EX:refreshOnly}} and {{EX:refreshAndPersist}}.
The operation type is specified by the {{EX:type}} parameter.
In the {{EX:refreshOnly}} operation, the next synchronization search operation
synchronization operation finishes. The interval is specified
by the {{EX:interval}} parameter. It is set to one day by default.
In the {{EX:refreshAndPersist}} operation, a synchronization search
-remains persistent in the provider slapd. Further updates to the
+remains persistent in the provider {{slapd}} instance. Further updates to the
master replica will generate {{EX:searchResultEntry}} to the consumer slapd
as the search responses to the persistent synchronization search.
The {{EX:bindmethod}} is {{EX:simple}} or {{EX:sasl}},
depending on whether simple password-based authentication or
{{TERM:SASL}} authentication is to be used when connecting
-to the provider slapd.
+to the provider {{slapd}} instance.
Simple authentication should not be used unless adequate data
integrity and confidentiality protections are in place (e.g. TLS
-or IPSEC). Simple authentication requires specification of {{EX:binddn}}
+or IPsec). Simple authentication requires specification of {{EX:binddn}}
and {{EX:credentials}} parameters.
SASL authentication is generally recommended. SASL authentication
mechanisms authenticate the identity within. The {{EX:secprops}}
parameter specifies Cyrus SASL security properties.
-The syncrepl replication mechanism is supported by the
-three native backends: back-bdb, back-hdb, and back-ldbm.
-
-See the {{SECT:LDAP Sync Replication}} chapter of the admin guide
-for more information on how to use this directive.
+The {{EX:starttls}} parameter specifies use of the StartTLS extended
+operation to establish a TLS session before authenticating to the provider.
+If the {{EX:critical}} argument is supplied, the session will be aborted
+if the StartTLS request fails. Otherwise the syncrepl session continues
+without TLS. Note that the main slapd TLS settings are not used by the
+syncrepl engine; by default the TLS parameters from a {{ldap.conf}}(5)
+configuration file will be used. TLS settings may be specified here,
+in which case any {{ldap.conf}}(5) settings will be completely ignored.
+
+Rather than replicating whole entries, the consumer can query logs
+of data modifications. This mode of operation is referred to as
+{{delta syncrepl}}. In addition to the above parameters, the
+{{EX:logbase}} and {{EX:logfilter}} parameters must be set appropriately
+for the log that will be used. The {{EX:syncdata}} parameter must
+be set to either {{EX:"accesslog"}} if the log conforms to the
+{{slapo-accesslog}}(5) log format, or {{EX:"changelog"}} if the log
+conforms to the obsolete {{changelog}} format. If the {{EX:syncdata}}
+parameter is omitted or set to {{EX:"default"}} then the log
+parameters are ignored.
+
+The {{syncrepl}} replication mechanism is supported by the {{bdb}} and
+{{hdb}} backends.
+
+See the {{SECT:LDAP Sync Replication}} chapter of this guide for
+more information on how to use this directive.
H4: olcTimeLimit: <integer>
> olcTimeLimit: 3600
-H4: olcUpdateDN: <DN>
-
-This directive is only applicable in a slave slapd. It specifies
-the DN allowed to make changes to the replica. This may be the DN
-{{slurpd}}(8) binds as when making changes to the replica or the DN
-associated with a SASL identity.
-
-Entry-based Example:
-
-> olcUpdateDN: "cn=Update Daemon,dc=example,dc=com"
-
-SASL-based Example:
-
-> olcUpdateDN: "uid=slurpd,cn=example.com,cn=digest-md5,cn=auth"
-
-See the {{SECT:Replication with slurpd}} chapter for more information
-on how to use this directive.
-
H4: olcUpdateref: <URL>
This directive is only applicable in a slave slapd. It
> olcUpdateref: ldap://master.example.net
-H4: Sample Entry
+H4: Sample Entries
>dn: olcDatabase=frontend,cn=config
>objectClass: olcDatabaseConfig
+>objectClass: olcFrontendConfig
>olcDatabase: frontend
>olcReadOnly: FALSE
+>
+>dn: olcDatabase=config,cn=config
+>objectClass: olcDatabaseConfig
+>olcDatabase: config
+>olcRootDN: cn=Manager,dc=example,dc=com
+
H3: BDB and HDB Database Directives
and the {{TERM:HDB}} database.
They are used in an olcDatabase entry in addition to the generic
database directives defined above. For a complete reference
-of BDB/HDB configuration directives, see {{slapd-bdb}}(5). BDB and
-HDB database entries must have the {{EX:olcBdbConfig}} objectClass.
+of BDB/HDB configuration directives, see {{slapd-bdb}}(5). In
+addition to the {{EX:olcDatabaseConfig}} objectClass, BDB and HDB
+database entries must have the {{EX:olcBdbConfig}} and
+{{EX:olcHdbConfig}} objectClass, respectively.
H4: olcDbDirectory: <directory>
A checkpoint operation flushes the database buffers to disk and writes a
checkpoint record in the log.
The checkpoint will occur if either <kbyte> data has been written or
-<min> minutes have passed since the last checkpont. Both arguments default
+<min> minutes have passed since the last checkpoint. Both arguments default
to zero, in which case they are ignored. When the <min> argument is
non-zero, an internal task will run every <min> minutes to perform the
checkpoint. See the Berkeley DB reference guide for more details.
no such file exists yet, the {{EX:DB_CONFIG}} file will be created and the
settings in this attribute will be written to it. If the file exists,
its contents will be read and displayed in this attribute. The attribute
-is multi-valued, to accomodate multiple configuration directives. No default
+is multi-valued, to accommodate multiple configuration directives. No default
is provided, but it is essential to use proper settings here to get the
best server performance.
+Any changes made to this attribute will be written to the {{EX:DB_CONFIG}}
+file and will cause the database environment to be reset so the changes
+can take immediate effect. If the environment cache is large and has not
+been recently checkpointed, this reset operation may take a long time. It
+may be advisable to manually perform a single checkpoint using the Berkeley DB
+{{db_checkpoint}} utility before using LDAP Modify to change this
+attribute.
+
\Example:
> olcDbConfig: set_cachesize 0 10485760 0
delete transaction log files as soon as their contents have been
checkpointed and they are no longer needed. Without this setting the
transaction log files will continue to accumulate until some other
-cleanup procedure removes them. See the SleepyCat documentation for the
+cleanup procedure removes them. See the Berkeley DB documentation for the
{{EX:db_archive}} command for details.
Ideally the BDB cache must be
at least as large as the working set of the database, the log buffer size
-should be large enough to accomodate most transactions without overflowing,
+should be large enough to accommodate most transactions without overflowing,
and the log directory must be on a separate physical disk from the main
database files. And both the database directory and the log directory
should be separate from disks used for regular system activities such as
-the root, boot, or swap filesystems. See the FAQ-o-Matic and the SleepyCat
+the root, boot, or swap filesystems. See the FAQ-o-Matic and the Berkeley DB
documentation for more details.
-H4: olcDbNosync: <TRUE|FALSE>
+H4: olcDbNosync: { TRUE | FALSE }
This option causes on-disk database contents to not be immediately
synchronized with in memory changes upon change. Setting this option
-to TRUE may improve performance at the expense of data integrity. This
+to {{EX:TRUE}} may improve performance at the expense of data integrity. This
directive has the same effect as using
> olcDbConfig: set_flags DB_TXN_NOSYNC
This directive specifies the indices to maintain for the given
attribute. If only an {{EX:<attrlist>}} is given, the default
-indices are maintained.
+indices are maintained. The index keywords correspond to the
+common types of matches that may be used in an LDAP search filter.
\Example:
fourth line causes an equality index for the {{EX:objectClass}}
attribute type.
+There is no index keyword for inequality matches. Generally these
+matches do not use an index. However, some attributes do support
+indexing for inequality matches, based on the equality index.
+
+A substring index can be more explicitly specified as {{EX:subinitial}},
+{{EX:subany}}, or {{EX:subfinal}}, corresponding to the three
+possible components
+of a substring match filter. A subinitial index only indexes
+substrings that appear at the beginning of an attribute value.
+A subfinal index only indexes substrings that appear at the end
+of an attribute value, while subany indexes substrings that occur
+anywhere in a value.
+
+Note that by default, setting an index for an attribute also
+affects every subtype of that attribute. E.g., setting an equality
+index on the {{EX:name}} attribute causes {{EX:cn}}, {{EX:sn}}, and every other
+attribute that inherits from {{EX:name}} to be indexed.
+
By default, no indices are maintained. It is generally advised
that minimally an equality index upon objectClass be maintained.
> olcDbindex: objectClass eq
+Additional indices should be configured corresponding to the
+most common searches that are used on the database.
+Presence indexing should not be configured for an attribute
+unless the attribute occurs very rarely in the database, and
+presence searches on the attribute occur very frequently during
+normal use of the directory. Most applications don't use presence
+searches, so usually presence indexing is not very useful.
+
If this setting is changed while slapd is running, an internal task
will be run to generate the changed index data. All server operations
can continue as normal while the indexer does its work. If slapd is
manually completed using the slapindex tool.
-H4: olcDbLinearIndex: <TRUE|FALSE>
+H4: olcDbLinearIndex: { TRUE | FALSE }
If this setting is {{EX:TRUE}} slapindex will index one attribute
at a time. The default settings is {{EX:FALSE}} in which case all
H4: olcDbSearchStack: <integer>
Specify the depth of the stack used for search filter evaluation.
-Search filters are evaluated on a stack to accomodate nested {{EX:AND}} /
+Search filters are evaluated on a stack to accommodate nested {{EX:AND}} /
{{EX:OR}} clauses. An individual stack is allocated for each server thread.
The depth of the stack determines how complex a filter can be evaluated
without requiring any additional memory allocation. Filters that are
>dn: olcDatabase=hdb,cn=config
>objectClass: olcDatabaseConfig
->objectClass: olcBdbConfig
+>objectClass: olcHdbConfig
>olcDatabase: hdb
>olcSuffix: "dc=example,dc=com"
>olcDbDirectory: /usr/local/var/openldap-data
> olcAccess: <access directive>
> <access directive> ::= to <what>
-> [by <who> <access> <control>]+
+> [by <who> [<access>] [<control>] ]+
> <what> ::= * |
> [dn[.<basic-style>]=<regex> | dn.<scope-style>=<DN>]
> [filter=<ldapfilter>] [attrs=<attrlist>]
> [set=<setspec>]
> [aci=<attrname>]
> <access> ::= [self]{<level>|<priv>}
-> <level> ::= none | auth | compare | search | read | write
-> <priv> ::= {=|+|-}{w|r|s|c|x|0}+
+> <level> ::= none | disclose | auth | compare | search | read | write | manage
+> <priv> ::= {=|+|-}{m|w|r|s|c|x|d|0}+
> <control> ::= [stop | continue | break]
where the <what> part selects the entries and/or attributes to which
discussed further in this document.) The third form is used to
select entries which are within the requested scope of DN. The
<DN> is a string representation of the Distinguished Name, as
-described in {{REF:RFC2253}}.
+described in {{REF:RFC4514}}.
The scope can be either {{EX:base}}, {{EX:one}}, {{EX:subtree}},
or {{EX:children}}. Where {{EX:base}} matches only the entry with
> to filter=<ldap filter>
where <ldap filter> is a string representation of an LDAP
-search filter, as described in {{REF:RFC2254}}. For example:
+search filter, as described in {{REF:RFC4515}}. For example:
> to filter=(objectClass=person)
Some factors may not be appropriate in all environments (or any).
For example, the domain factor relies on IP to domain name lookups.
-As these can easily spoofed, the domain factor should not be avoided.
+As these can easily be spoofed, the domain factor should be avoided.
H3: The access to grant
-
The kind of <access> granted can be one of the following:
-
!block table; colaligns="LRL"; coltags="EX,EX,N"; align=Center; \
title="Table 5.4: Access Levels"
-Level Privileges Description
-none =0 no access
-auth =x needed to bind
-compare =cx needed to compare
-search =scx needed to apply search filters
-read =rscx needed to read search results
-write =wrscx needed to modify/rename
+Level Privileges Description
+none =0 no access
+disclose =d needed for information disclosure on error
+auth =dx needed to authenticate (bind)
+compare =cdx needed to compare
+search =scdx needed to apply search filters
+read =rscdx needed to read search results
+write =wrscdx needed to modify/rename
+manage =mwrscdx needed to manage
!endblock
-Each level implies all lower levels of access. So, for
-example, granting someone {{EX:write}} access to an entry also
-grants them {{EX:read}}, {{EX:search}}, {{EX:compare}}, and
-{{EX:auth}} access. However, one may use the privileges specifier
+Each level implies all lower levels of access. So, for example,
+granting someone {{EX:write}} access to an entry also grants them
+{{EX:read}}, {{EX:search}}, {{EX:compare}}, {{EX:auth}} and
+{{EX:disclose}} access. However, one may use the privileges specifier
to grant specific permissions.
When evaluating whether some requester should be given access to
an entry and/or attribute, slapd compares the entry and/or attribute
-to the {{EX:<what>}} selectors given in the configuration.
-For each entry, access controls provided in the database which holds
+to the {{EX:<what>}} selectors given in the configuration. For
+each entry, access controls provided in the database which holds
the entry (or the first database if not held in any database) apply
first, followed by the global access directives (which are held in
-the {{EX:frontend}} database definition). Within this
-priority, access directives are examined in the order in which they
-appear in the configuration attribute. Slapd stops with the first {{EX:<what>}}
-selector that matches the entry and/or attribute. The corresponding
-access directive is the one slapd will use to evaluate access.
+the {{EX:frontend}} database definition). Within this priority,
+access directives are examined in the order in which they appear
+in the configuration attribute. Slapd stops with the first
+{{EX:<what>}} selector that matches the entry and/or attribute. The
+corresponding access directive is the one slapd will use to evaluate
+access.
Next, slapd compares the entity requesting access to the {{EX:<who>}}
selectors within the access directive selected above in the order
shows the use of an attribute selector to grant access to a specific
attribute and various {{EX:<who>}} selectors.
-> olcAccess: to dn.subtree="dc=example,dc=com" attr=homePhone
+> olcAccess: to dn.subtree="dc=example,dc=com" attrs=homePhone
> by self write
> by dn.children=dc=example,dc=com" search
> by peername.regex=IP:10\..+ read
their own DN from the member attribute, you could accomplish
it with an access directive like this:
-> olcAccess: to attr=member,entry
+> olcAccess: to attrs=member,entry
> by dnattr=member selfwrite
The dnattr {{EX:<who>}} selector says that the access applies to
when originally defining the values. For example, when you create the
settings
-> olcAccess: to attr=member,entry
+> olcAccess: to attrs=member,entry
> by dnattr=member selfwrite
> olcAccess: to dn.children="dc=example,dc=com"
> by * search
when you read them back using slapcat or ldapsearch they will contain
-> olcAccess: {0}to attr=member,entry
+> olcAccess: {0}to attrs=member,entry
> by dnattr=member selfwrite
> olcAccess: {1}to dn.children="dc=example,dc=com"
> by * search
attribute (regardless of its value) and adds a new value that is
explicitly inserted as value #1. The result will be
-> olcAccess: {0}to attr=member,entry
+> olcAccess: {0}to attrs=member,entry
> by dnattr=member selfwrite
> olcAccess: {1}to dn.children="dc=example,dc=com"
> by * write
!endif
-Note: the remainder of this chapter has not yet been updated to reflect
-the new cn=config mechanisms.
-
H2: Configuration Example
The following is an example configuration, interspersed
reference only and are not included in the actual file. First, the
global configuration section:
-E: 1. # example config file - global configuration section
-E: 2. include /usr/local/etc/schema/core.schema
-E: 3. referral ldap://root.openldap.org
-E: 4. access to * by * read
-
-Line 1 is a comment. Line 2 includes another config file
-which contains {{core}} schema definitions.
-The {{EX:referral}} directive on line 3
+E: 1. # example config file - global configuration entry
+E: 2. dn: cn=config
+E: 3. objectClass: olcGlobal
+E: 4. cn: config
+E: 5. olcReferral: ldap://root.openldap.org
+E: 6.
+
+Line 1 is a comment. Lines 2-4 identify this as the global
+configuration entry.
+The {{EX:olcReferral:}} directive on line 5
means that queries not local to one of the databases defined
below will be referred to the LDAP server running on the
standard port (389) at the host {{EX:root.openldap.org}}.
-
-Line 4 is a global access control. It applies to all
-entries (after any applicable database-specific access
-controls).
-
-The next section of the configuration file defines a BDB
-backend that will handle queries for things in the
-"dc=example,dc=com" portion of the tree. The
-database is to be replicated to two slave slapds, one on
-truelies, the other on judgmentday. Indices are to be
-maintained for several attributes, and the {{EX:userPassword}}
-attribute is to be protected from unauthorized access.
-
-E: 5. # BDB definition for the example.com
-E: 6. database bdb
-E: 7. suffix "dc=example,dc=com"
-E: 8. directory /usr/local/var/openldap-data
-E: 9. rootdn "cn=Manager,dc=example,dc=com"
-E: 10. rootpw secret
-E: 11. # replication directives
-E: 12. replogfile /usr/local/var/openldap/slapd.replog
-E: 13. replica uri=ldap://slave1.example.com:389
-E: 14. binddn="cn=Replicator,dc=example,dc=com"
-E: 15. bindmethod=simple credentials=secret
-E: 16. replica uri=ldaps://slave2.example.com:636
-E: 17. binddn="cn=Replicator,dc=example,dc=com"
-E: 18. bindmethod=simple credentials=secret
-E: 19. # indexed attribute definitions
-E: 20. index uid pres,eq
-E: 21. index cn,sn,uid pres,eq,approx,sub
-E: 22. index objectClass eq
-E: 23. # database access control definitions
-E: 24. access to attr=userPassword
-E: 25. by self write
-E: 26. by anonymous auth
-E: 27. by dn.base="cn=Admin,dc=example,dc=com" write
-E: 28. by * none
-E: 29. access to *
-E: 30. by self write
-E: 31. by dn.base="cn=Admin,dc=example,dc=com" write
-E: 32. by * read
-
-Line 5 is a comment. The start of the database definition is marked
-by the database keyword on line 6. Line 7 specifies the DN suffix
-for queries to pass to this database. Line 8 specifies the directory
+Line 6 is a blank line, indicating the end of this entry.
+
+E: 7. # internal schema
+E: 8. dn: cn=schema,cn=config
+E: 9. objectClass: olcSchemaConfig
+E: 10. cn: schema
+E: 11.
+
+Line 7 is a comment. Lines 8-10 identify this as the root of
+the schema subtree. The actual schema definitions in this entry
+are hardcoded into slapd so no additional attributes are specified here.
+Line 11 is a blank line, indicating the end of this entry.
+
+E: 12. # include the core schema
+E: 13. include: file:///usr/local/etc/openldap/schema/core.ldif
+E: 14.
+
+Line 12 is a comment. Line 13 is an LDIF include directive which
+accesses the {{core}} schema definitions in LDIF format. Line 14
+is a blank line.
+
+Next comes the database definitions. The first database is the
+special {{EX:frontend}} database whose settings are applied globally
+to all the other databases.
+
+E: 15. # global database parameters
+E: 16. dn: olcDatabase=frontend,cn=config
+E: 17. objectClass: olcDatabaseConfig
+E: 18. olcDatabase: frontend
+E: 19. olcAccess: to * by * read
+E: 20.
+
+Line 15 is a comment. Lines 16-18 identify this entry as the global
+database entry. Line 19 is a global access control. It applies to all
+entries (after any applicable database-specific access controls).
+
+The next entry defines a BDB backend that will handle queries for things
+in the "dc=example,dc=com" portion of the tree. Indices are to be maintained
+for several attributes, and the {{EX:userPassword}} attribute is to be
+protected from unauthorized access.
+
+E: 21. # BDB definition for example.com
+E: 22. dn: olcDatabase=bdb,cn=config
+E: 23. objectClass: olcDatabaseConfig
+E: 24. objectClass: olcBdbConfig
+E: 25. olcDatabase: bdb
+E: 26. olcSuffix: "dc=example,dc=com"
+E: 27. olcDbDirectory: /usr/local/var/openldap-data
+E: 28. olcRootDN: "cn=Manager,dc=example,dc=com"
+E: 29. olcRootPW: secret
+E: 30. olcDbIndex: uid pres,eq
+E: 31. olcDbIndex: cn,sn,uid pres,eq,approx,sub
+E: 32. olcDbIndex: objectClass eq
+E: 33. olcAccess: to attrs=userPassword
+E: 34. by self write
+E: 35. by anonymous auth
+E: 36. by dn.base="cn=Admin,dc=example,dc=com" write
+E: 37. by * none
+E: 38. olcAccess: to *
+E: 39. by self write
+E: 40. by dn.base="cn=Admin,dc=example,dc=com" write
+E: 41. by * read
+E: 42.
+
+Line 21 is a comment. Lines 22-25 identify this entry as a BDB database
+configuration entry. Line 26 specifies the DN suffix
+for queries to pass to this database. Line 27 specifies the directory
in which the database files will live.
-Lines 9 and 10 identify the database {{super-user}} entry and associated
+Lines 28 and 29 identify the database {{super-user}} entry and associated
password. This entry is not subject to access control or size or
time limit restrictions.
-Lines 11 through 18 are for replication. Line 12 specifies the
-replication log file (where changes to the database are logged -
-this file is written by slapd and read by slurpd). Lines 13 through
-15 specify the hostname and port for a replicated host, the DN to
-bind as when performing updates, the bind method (simple) and the
-credentials (password) for the binddn. Lines 16 through 18 specify
-a second replication site. See the {{SECT:Replication with slurpd}}
-chapter for more information on these directives.
-
-Lines 20 through 22 indicate the indices to maintain for various
+Lines 30 through 32 indicate the indices to maintain for various
attributes.
-Lines 24 through 32 specify access control for entries in this
+Lines 33 through 41 specify access control for entries in this
database. As this is the first database, the controls also apply
to entries not held in any database (such as the Root DSE). For
all applicable entries, the {{EX:userPassword}} attribute is writable
All other attributes are writable by the entry and the "admin"
entry, but may be read by all users (authenticated or not).
+Line 42 is a blank line, indicating the end of this entry.
+
The next section of the example configuration file defines another
BDB database. This one handles queries involving the
{{EX:dc=example,dc=net}} subtree but is managed by the same entity
-as the first database. Note that without line 39, the read access
-would be allowed due to the global access rule at line 4.
-
-E: 33. # BDB definition for example.net
-E: 34. database bdb
-E: 35. suffix "dc=example,dc=net"
-E: 36. directory /usr/local/var/openldap-data-net
-E: 37. rootdn "cn=Manager,dc=example,dc=com"
-E: 38. index objectClass eq
-E: 39. access to * by users read
+as the first database. Note that without line 52, the read access
+would be allowed due to the global access rule at line 19.
+
+E: 43. # BDB definition for example.net
+E: 44. dn: olcDatabase=bdb,cn=config
+E: 45. objectClass: olcDatabaseConfig
+E: 46. objectClass: olcBdbConfig
+E: 47. olcDatabase: bdb
+E: 48. olcSuffix: "dc=example,dc=net"
+E: 49. olcDbDirectory: /usr/local/var/openldap-data-net
+E: 50. olcRootDN: "cn=Manager,dc=example,dc=com"
+E: 51. olcDbIndex: objectClass eq
+E: 52. olcAccess: to * by users read
+
+
+H2: Converting from slapd.conf(8) to a {{B:cn=config}} directory format
+
+Discuss slap* -f slapd.conf -F slapd.d/ (man slapd-config)
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