# $OpenLDAP$
-# Copyright 1999-2003, The OpenLDAP Foundation, All Rights Reserved.
+# Copyright 1999-2005, The OpenLDAP Foundation, All Rights Reserved.
# COPYING RESTRICTIONS APPLY, see COPYRIGHT.
H1: The slapd Configuration File
Types Description
bdb Berkeley DB transactional backend
dnssrv DNS SRV backend
+hdb Hierarchical variant of bdb backend
ldap Lightweight Directory Access Protocol (Proxy) backend
ldbm Lightweight DBM backend
meta Meta Directory backend
H4: replica
> replica uri=ldap[s]://<hostname>[:<port>] | host=<hostname>[:<port>]
-> [bindmethod={simple|kerberos|sasl}]
+> [bindmethod={simple|sasl}]
> ["binddn=<DN>"]
> [saslmech=<mech>]
> [authcid=<identity>]
> [authzid=<identity>]
> [credentials=<password>]
-> [srvtab=<filename>]
This directive specifies a replication site for this database. The
{{EX:uri=}} parameter specifies a scheme, a host and optionally a port where
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, typically given as a
-{{EX:rootdn}} in the slave's config file. It must also match the
-{{EX:updatedn}} directive in the slave slapd's config file. 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:kerberos}} or {{EX:sasl}},
-depending on whether simple password-based authentication or Kerberos
-authentication or {{TERM:SASL}} authentication is to be used when connecting
-to the slave slapd.
-
-Simple authentication should not be used unless adequate integrity
-and privacy protections are in place (e.g. TLS or IPSEC). Simple
-authentication requires specification of {{EX:binddn}} and
-{{EX:credentials}} parameters.
-
-Kerberos authentication is deprecated in favor of SASL authentication
-mechanisms, in particular the {{EX:KERBEROS_V4}} and {{EX:GSSAPI}}
-mechanisms. Kerberos authentication requires {{EX:binddn}} and
-{{EX:srvtab}} parameters.
+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.
H4: syncrepl
-> syncrepl id=<replica ID>
+> syncrepl rid=<replica ID>
> provider=ldap[s]://<hostname>[:port]
> [type=refreshOnly|refreshAndPersist]
> [interval=dd:hh:mm:ss]
+> [retry=[<retry interval> <# of retries>]+]
> [searchbase=<base DN>]
> [filter=<filter str>]
> [scope=sub|one|base]
> [sizelimit=<limit>]
> [timelimit=<limit>]
> [schemachecking=on|off]
-> [updatedn=<DN>]
> [bindmethod=simple|sasl]
> [binddn=<DN>]
> [saslmech=<mech>]
Synchronization protocol. See {{EX:draft-zeilenga-ldup-sync-xx.txt}}
({{a work in progress}}) for more information on the protocol.
-The {{EX:id}} parameter is used for identification of the current
-{{EX:syncrepl}} directive in the database, where {{EX:<replica ID>}}
-uniquely identifies the syncrepl specification described by the current
-{{EX:syncrepl}} directive. {{EX:<replica ID>}} is non-negative and is no
-more than three digits in length.
+The {{EX:rid}} parameter is used for identification of the current
+{{EX:syncrepl}} directive within the replication consumer server,
+where {{EX:<replica ID>}} uniquely identifies the syncrepl specification
+described by the current {{EX:syncrepl}} directive. {{EX:<replica ID>}}
+is non-negative and is no more than three decimal digits in length.
The {{EX:provider}} parameter specifies the replication provider site
containing the master content as an LDAP URI. The {{EX:provider}}
master replica will generate {{EX:searchResultEntry}} to the consumer slapd
as the search responses to the persistent synchronization search.
+If an error occurs during replication, the consumer will attempt to reconnect
+according to the retry parameter which is a list of the <retry interval>
+and <# of retries> pairs. For example, retry="60 10 300 3" lets the consumer
+retry every 60 seconds for the first 10 times and then retry every 300 seconds
+for the next three times before stop retrying. + in <# of retries> means
+indefinite number of retries until success.
+
The schema checking can be enforced at the LDAP Sync consumer site
by turning on the {{EX:schemachecking}} parameter.
If it is turned on, every replicated entry will be checked for its
If it is turned off, entries will be stored without checking
schema conformance. The default is off.
-The {{EX:updatedn}} parameter specifies the DN in the consumer site
-which is allowed to make changes to the replica. This DN is used
-locally by the syncrepl engine when updating the replica with
-the entries received from the provider site by using the
-internal operation mechanism. The update of the replica content
-is subject to the access control privileges of the DN.
-The DN should have read/write access to the replica database.
-It is typically given as a {{EX:rootdn}} in the consumer site's
-config file.
-
The {{EX:binddn}} parameter gives the DN to bind as for the
syncrepl searches to the provider slapd. It should be a DN
which has read access to the replication content in the
{{TERM:SASL}} authentication is to be used when connecting
to the provider slapd.
-Simple authentication should not be used unless adequate integrity
-and privacy protections are in place (e.g. TLS or IPSEC). Simple
-authentication requires specification of {{EX:binddn}} and
-{{EX:credentials}} parameters.
+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.
> updateref ldap://master.example.net
-H3: BDB Database Directives
+H3: BDB and HDB Database Directives
-Directives in this category only apply to a {{TERM:BDB}} database.
-That is, they must follow a "database bdb" line and come before any
+Directives in this category only apply to both the {{TERM:BDB}}
+and the {{TERM:HDB}} database.
+That is, they must follow a "database bdb" or "database hdb" line
+and come before any
subsequent "backend" or "database" line. For a complete reference
-of BDB configuration directives, see {{slapd-bdb}}(5).
+of BDB/HDB configuration directives, see {{slapd-bdb}}(5).
H4: directory <directory>
> directory /usr/local/var/openldap-data
-H4: sessionlog <sid> <limit>
-
-This directive specifies a session log store in the syncrepl
-replication provider site which contains information on
-the entries that have been scoped out of the content of the
-replication session identified by {{EX:<sid>}}.
-The first syncrepl search request having the same sid value in the
-cookie establishes the session log store in the provider site.
-The number of the entries in the session log store is limited
-by {{EX:<limit>}}. Excessive entries are removed from the store
-in the FIFO order. Both {{EX:<sid>}} and {{EX:<limit>}} are
-non-negative integers. {{EX:<sid>}} has no more than three digits.
-
-The LDAP Content Synchronization operation that falls into a pre-existing
-session uses the session log store in order to reduce the amount
-of synchronization traffic. If the replica is not so outdated that
-it can be made up-to-date by the information in the session store,
-the provider slapd will send the consumer slapd the identities of the
-scoped-out entries together with the in-scope entries added to or
-modified within the replication content. If the replica status is
-beyond the coverage of the history store, then the provider slapd will
-send the identities of the unchanged in-scope entries along with the
-changed in-scope entries. The consumer slapd will then remove those
-entries in the replica which are not identified as present in the
-master content.
-
-An access control mechanism is to be further provided to
-make the session joining controllable.
-
-
H3: LDBM Database Directives
Directives in this category only apply to a {{TERM:LDBM}} database.
> [aci=<attrname>]
> <access> ::= [self]{<level>|<priv>}
> <level> ::= none | auth | compare | search | read | write
-> <priv> ::= {=|+|-}{w|r|s|c|x}+
+> <priv> ::= {=|+|-}{w|r|s|c|x|0}+
> <control> ::= [stop | continue | break]
where the <what> part selects the entries and/or attributes to which
commonly selected in two ways: by DN and by filter. The following
qualifiers select entries by DN:
-> by *
-> by dn[.<basic-style>]=<regex>
-> by dn.<scope-style>=<DN>
+> to *
+> to dn[.<basic-style>]=<regex>
+> to dn.<scope-style>=<DN>
The first form is used to select all entries. The second form may
be used to select entries by matching a regular expression against
Entries may also be selected using a filter:
-> by filter=<ldap filter>
+> to filter=<ldap filter>
where <ldap filter> is a string representation of an LDAP
search filter, as described in {{REF:RFC2254}}. For example:
-> by filter=(objectClass=person)
+> to filter=(objectClass=person)
Note that entries may be selected by both DN and filter by
including both qualifiers in the <what> clause.
-> by dn.one="ou=people,o=suffix" filter=(objectClass=person)
+> to dn.one="ou=people,o=suffix" filter=(objectClass=person)
Attributes within an entry are selected by including a comma-separated
list of attribute names in the <what> selector:
!block table; colaligns="LRL"; coltags="EX,EX,N"; align=Center; \
title="Table 5.4: Access Levels"
Level Privileges Description
-none no access
+none =0 no access
auth =x needed to bind
compare =cx needed to compare
search =scx needed to apply search filters
H3: Access Control Examples
-The access control facility described above is quite powerful.
-This section shows some examples of its use. First, some
-simple examples:
+The access control facility described above is quite powerful. This
+section shows some examples of its use for descriptive purposes.
+
+A simple example:
> access to * by * read
client has not establish sufficient security protections, the
implicit {{EX:by * none}} clause would be applied.
-The following example shows the use of a style specifiers
-to select the entries by DN in two access directives where
-ordering is significant.
+The following example shows the use of a style specifiers to select
+the entries by DN in two access directives where ordering is
+significant.
> access to dn.children="dc=example,dc=com"
> by * search
> access to dn.subtree="dc=example,dc=com" attr=homePhone
> by self write
-> by dn.children=dc=example,dc=com" search
-> by peername=IP:10\..+ read
+> by dn.children="dc=example,dc=com" search
+> by peername.regex=IP:10\..+ read
> access to dn.subtree="dc=example,dc=com"
> by self write
> by dn.children="dc=example,dc=com" search
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