2143 lines
66 KiB
Groff
2143 lines
66 KiB
Groff
.lf 1 stdin
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.TH SLAPD-CONFIG 5 "2020/04/28" "OpenLDAP 2.4.50"
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.\" Copyright 1998-2020 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\-config \- configuration backend to slapd
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.SH SYNOPSIS
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/etc/openldap/slapd.d
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.SH DESCRIPTION
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The
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.B config
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backend manages all of the configuration information for the
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.BR slapd (8)
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daemon. This configuration information is also used by the SLAPD tools
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.BR slapacl (8),
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.BR slapadd (8),
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.BR slapauth (8),
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.BR slapcat (8),
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.BR slapdn (8),
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.BR slapindex (8),
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and
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.BR slaptest (8).
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.LP
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The
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.B config
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backend is backward compatible with the older
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.BR slapd.conf (5)
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file but provides the ability to change the configuration dynamically
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at runtime. If slapd is run with only a
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.B slapd.conf
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file dynamic changes will be allowed but they will not persist across
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a server restart. Dynamic changes are only saved when slapd is running
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from a
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.B slapd.d
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configuration directory.
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.LP
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Unlike other backends, there can only be one instance of the
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.B config
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backend, and most of its structure is predefined. The root of the
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database is hardcoded to
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.B "cn=config"
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and this root entry contains
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global settings for slapd. Multiple child entries underneath the
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root entry are used to carry various other settings:
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.RS
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.TP
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.B cn=Module
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dynamically loaded modules
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.TP
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.B cn=Schema
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schema definitions
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.TP
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.B olcBackend=xxx
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backend-specific settings
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.TP
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.B olcDatabase=xxx
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database-specific settings
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.RE
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The
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.B cn=Module
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entries will only appear in configurations where slapd
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was built with support for dynamically loaded modules. There can be
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multiple entries, one for each configured module path. Within each
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entry there will be values recorded for each module loaded on a
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given path. These entries have no children.
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The
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.B cn=Schema
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entry contains all of the hardcoded schema elements.
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The children of this entry contain all user-defined schema elements.
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In schema that were loaded from include files, the child entry will
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be named after the include file from which the schema was loaded.
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Typically the first child in this subtree will be
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.BR cn=core,cn=schema,cn=config .
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.B olcBackend
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entries are for storing settings specific to a single
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backend type (and thus global to all database instances of that type).
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At present there are no backends that implement settings of this
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nature, so usually there will not be any olcBackend entries.
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.B olcDatabase
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entries store settings specific to a single database
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instance. These entries may have
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.B olcOverlay
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child entries corresponding
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to any overlays configured on the database. The olcDatabase and
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olcOverlay entries may also have miscellaneous child entries for
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other settings as needed. There are two special database entries
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that are predefined \- one is an entry for the config database itself,
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and the other is for the "frontend" database. Settings in the
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frontend database are inherited by the other databases, unless
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they are explicitly overridden in a specific database.
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.LP
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The specific configuration options available are discussed below in the
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Global Configuration Options, General Backend Options, and General Database
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Options. Options are set by defining LDAP attributes with specific values.
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In general the names of the LDAP attributes are the same as the corresponding
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.B slapd.conf
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keyword, with an "olc" prefix added on.
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The parser for many of these attributes is the same as used for parsing
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the slapd.conf keywords. As such, slapd.conf keywords that allow multiple
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items to be specified on one line, separated by whitespace, will allow
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multiple items to be specified in one attribute value. However, when
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reading the attribute via LDAP, the items will be returned as individual
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attribute values.
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Backend-specific options are discussed in the
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.B slapd\-<backend>(5)
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manual pages. Refer to the "OpenLDAP Administrator's Guide" for more
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details on configuring slapd.
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.SH GLOBAL CONFIGURATION OPTIONS
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Options described in this section apply to the server as a whole.
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Arguments that should be replaced by
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actual text are shown in brackets <>.
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These options may only be specified in the
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.B cn=config
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entry. This entry must have an objectClass of
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.BR olcGlobal .
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.TP
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.B olcAllows: <features>
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Specify a set of features to allow (default none).
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.B bind_v2
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allows acceptance of LDAPv2 bind requests. Note that
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.BR slapd (8)
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does not truly implement LDAPv2 (RFC 1777), now Historic (RFC 3494).
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.B bind_anon_cred
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allows anonymous bind when credentials are not empty (e.g.
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when DN is empty).
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.B bind_anon_dn
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allows unauthenticated (anonymous) bind when DN is not empty.
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.B update_anon
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allows unauthenticated (anonymous) update operations to be processed
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(subject to access controls and other administrative limits).
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.B proxy_authz_anon
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allows unauthenticated (anonymous) proxy authorization control to be processed
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(subject to access controls, authorization and other administrative limits).
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.TP
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.B olcArgsFile: <filename>
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The (absolute) name of a file that will hold the
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.B slapd
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server's command line (program name and options).
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.TP
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.B olcAttributeOptions: <option-name>...
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Define tagging attribute options or option tag/range prefixes.
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Options must not end with `\-', prefixes must end with `\-'.
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The `lang\-' prefix is predefined.
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If you use the
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.B olcAttributeOptions
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directive, `lang\-' will no longer be defined and you must specify it
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explicitly if you want it defined.
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An attribute description with a tagging option is a subtype of that
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attribute description without the option.
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Except for that, options defined this way have no special semantics.
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Prefixes defined this way work like the `lang\-' options:
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They define a prefix for tagging options starting with the prefix.
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That is, if you define the prefix `x\-foo\-', you can use the option
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`x\-foo\-bar'.
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Furthermore, in a search or compare, a prefix or range name (with
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a trailing `\-') matches all options starting with that name, as well
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as the option with the range name sans the trailing `\-'.
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That is, `x\-foo\-bar\-' matches `x\-foo\-bar' and `x\-foo\-bar\-baz'.
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RFC 4520 reserves options beginning with `x\-' for private experiments.
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Other options should be registered with IANA, see RFC 4520 section 3.5.
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OpenLDAP also has the `binary' option built in, but this is a transfer
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option, not a tagging option.
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.TP
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.B olcAuthIDRewrite: <rewrite\-rule>
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Used by the authentication framework to convert simple user names
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to an LDAP DN used for authorization purposes.
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Its purpose is analogous to that of
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.BR olcAuthzRegexp
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(see below).
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The
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.B rewrite\-rule
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is a set of rules analogous to those described in
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.BR slapo\-rwm (5)
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for data rewriting (after stripping the \fIrwm\-\fP prefix).
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.B olcAuthIDRewrite
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and
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.B olcAuthzRegexp
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should not be intermixed.
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.TP
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.B olcAuthzPolicy: <policy>
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Used to specify which rules to use for Proxy Authorization. Proxy
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authorization allows a client to authenticate to the server using one
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user's credentials, but specify a different identity to use for authorization
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and access control purposes. It essentially allows user A to login as user
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B, using user A's password.
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The
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.B none
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flag disables proxy authorization. This is the default setting.
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The
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.B from
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flag will use rules in the
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.I authzFrom
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attribute of the authorization DN.
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The
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.B to
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flag will use rules in the
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.I authzTo
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attribute of the authentication DN.
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The
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.B any
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flag, an alias for the deprecated value of
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.BR both ,
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will allow any of the above, whatever succeeds first (checked in
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.BR to ,
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.B from
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sequence.
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The
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.B all
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flag requires both authorizations to succeed.
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.LP
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.RS
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The rules are mechanisms to specify which identities are allowed
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to perform proxy authorization.
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The
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.I authzFrom
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attribute in an entry specifies which other users
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are allowed to proxy login to this entry. The
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.I authzTo
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attribute in
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an entry specifies which other users this user can authorize as. Use of
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.I authzTo
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rules can be easily
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abused if users are allowed to write arbitrary values to this attribute.
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In general the
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.I authzTo
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attribute must be protected with ACLs such that
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only privileged users can modify it.
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The value of
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.I authzFrom
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and
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.I authzTo
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describes an
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.B identity
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or a set of identities; it can take five forms:
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.RS
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.TP
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.B ldap:///<base>??[<scope>]?<filter>
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.RE
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.RS
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.B dn[.<dnstyle>]:<pattern>
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.RE
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.RS
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.B u[<mech>[<realm>]]:<pattern>
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.RE
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.RS
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.B group[/objectClass[/attributeType]]:<pattern>
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.RE
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.RS
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.B <pattern>
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.RE
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.RS
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.B <dnstyle>:={exact|onelevel|children|subtree|regex}
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.RE
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The first form is a valid LDAP
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.B URI
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where the
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.IR <host>:<port> ,
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the
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.I <attrs>
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and the
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.I <extensions>
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portions must be absent, so that the search occurs locally on either
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.I authzFrom
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or
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.IR authzTo .
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The second form is a
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.BR DN ,
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with the optional style modifiers
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.IR exact ,
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.IR onelevel ,
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.IR children ,
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and
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.I subtree
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for exact, onelevel, children and subtree matches, which cause
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.I <pattern>
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to be normalized according to the DN normalization rules, or the special
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.I regex
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style, which causes the
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.I <pattern>
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to be treated as a POSIX (''extended'') regular expression, as
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discussed in
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.BR regex (7)
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and/or
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.BR re_format (7).
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A pattern of
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.I *
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means any non-anonymous DN.
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The third form is a SASL
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.BR id ,
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with the optional fields
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.I <mech>
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and
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.I <realm>
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that allow to specify a SASL
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.BR mechanism ,
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and eventually a SASL
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.BR realm ,
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for those mechanisms that support one.
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The need to allow the specification of a mechanism is still debated,
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and users are strongly discouraged to rely on this possibility.
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The fourth form is a group specification, consisting of the keyword
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.BR group ,
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optionally followed by the specification of the group
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.B objectClass
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and member
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.BR attributeType .
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The group with DN
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.B <pattern>
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is searched with base scope, and in case of match, the values of the
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member
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.B attributeType
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are searched for the asserted DN.
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For backwards compatibility, if no identity type is provided, i.e. only
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.B <pattern>
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is present, an
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.I exact DN
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is assumed; as a consequence,
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.B <pattern>
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is subjected to DN normalization.
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Since the interpretation of
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.I authzFrom
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and
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.I authzTo
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can impact security, users are strongly encouraged
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to explicitly set the type of identity specification that is being used.
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A subset of these rules can be used as third arg in the
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.B olcAuthzRegexp
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statement (see below); significantly, the
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.I URI
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and the
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.I dn.exact:<dn>
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forms.
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.RE
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.TP
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.B olcAuthzRegexp: <match> <replace>
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Used by the authentication framework to convert simple user names,
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such as provided by SASL subsystem, to an LDAP DN used for
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authorization purposes. Note that the resultant DN need not refer
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to an existing entry to be considered valid. When an authorization
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request is received from the SASL subsystem, the SASL
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.BR USERNAME ,
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.BR REALM ,
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and
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.B MECHANISM
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are taken, when available, and combined into a name of the form
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.RS
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.RS
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.TP
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.B UID=<username>[[,CN=<realm>],CN=<mechanism>],CN=auth
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.RE
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This name is then compared against the
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.B match
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POSIX (''extended'') regular expression, and if the match is successful,
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the name is replaced with the
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.B replace
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string. If there are wildcard strings in the
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.B match
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regular expression that are enclosed in parenthesis, e.g.
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.RS
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.TP
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.B UID=([^,]*),CN=.*
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.RE
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then the portion of the name that matched the wildcard will be stored
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in the numbered placeholder variable $1. If there are other wildcard strings
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in parenthesis, the matching strings will be in $2, $3, etc. up to $9. The
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placeholders can then be used in the
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.B replace
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string, e.g.
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.RS
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.TP
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.B UID=$1,OU=Accounts,DC=example,DC=com
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.RE
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The replaced name can be either a DN, i.e. a string prefixed by "dn:",
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or an LDAP URI.
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If the latter, the server will use the URI to search its own database(s)
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and, if the search returns exactly one entry, the name is
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replaced by the DN of that entry. The LDAP URI must have no
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hostport, attrs, or extensions components, but the filter is mandatory,
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e.g.
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.RS
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.TP
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.B ldap:///OU=Accounts,DC=example,DC=com??one?(UID=$1)
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.RE
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The protocol portion of the URI must be strictly
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.BR ldap .
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Note that this search is subject to access controls. Specifically,
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the authentication identity must have "auth" access in the subject.
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|
Multiple
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.B olcAuthzRegexp
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values can be specified to allow for multiple matching
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and replacement patterns. The matching patterns are checked in the order they
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appear in the attribute, stopping at the first successful match.
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.\".B Caution:
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.\"Because the plus sign + is a character recognized by the regular expression engine,
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.\"and it will appear in names that include a REALM, be careful to escape the
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.\"plus sign with a backslash \\+ to remove the character's special meaning.
|
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.RE
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.TP
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.B olcConcurrency: <integer>
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Specify a desired level of concurrency. Provided to the underlying
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thread system as a hint. The default is not to provide any hint. This setting
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is only meaningful on some platforms where there is not a one to one
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correspondence between user threads and kernel threads.
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.TP
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.B olcConnMaxPending: <integer>
|
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Specify the maximum number of pending requests for an anonymous session.
|
|
If requests are submitted faster than the server can process them, they
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will be queued up to this limit. If the limit is exceeded, the session
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is closed. The default is 100.
|
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.TP
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.B olcConnMaxPendingAuth: <integer>
|
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Specify the maximum number of pending requests for an authenticated session.
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The default is 1000.
|
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.TP
|
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.B olcDisallows: <features>
|
|
Specify a set of features to disallow (default none).
|
|
.B bind_anon
|
|
disables acceptance of anonymous bind requests. Note that this setting
|
|
does not prohibit anonymous directory access (See "require authc").
|
|
.B bind_simple
|
|
disables simple (bind) authentication.
|
|
.B tls_2_anon
|
|
disables forcing session to anonymous status (see also
|
|
.BR tls_authc )
|
|
upon StartTLS operation receipt.
|
|
.B tls_authc
|
|
disallows the StartTLS operation if authenticated (see also
|
|
.BR tls_2_anon ).
|
|
.TP
|
|
.B olcGentleHUP: { TRUE | FALSE }
|
|
A SIGHUP signal will only cause a 'gentle' shutdown-attempt:
|
|
.B Slapd
|
|
will stop listening for new connections, but will not close the
|
|
connections to the current clients. Future write operations return
|
|
unwilling-to-perform, though. Slapd terminates when all clients
|
|
have closed their connections (if they ever do), or \- as before \-
|
|
if it receives a SIGTERM signal. This can be useful if you wish to
|
|
terminate the server and start a new
|
|
.B slapd
|
|
server
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|
.B with another database,
|
|
without disrupting the currently active clients.
|
|
The default is FALSE. You may wish to use
|
|
.B olcIdleTimeout
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|
along with this option.
|
|
.TP
|
|
.B olcIdleTimeout: <integer>
|
|
Specify the number of seconds to wait before forcibly closing
|
|
an idle client connection. A setting of 0 disables this
|
|
feature. The default is 0. You may also want to set the
|
|
.B olcWriteTimeout
|
|
option.
|
|
.TP
|
|
.B olcIndexIntLen: <integer>
|
|
Specify the key length for ordered integer indices. The most significant
|
|
bytes of the binary integer will be used for index keys. The default
|
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value is 4, which provides exact indexing for 31 bit values.
|
|
A floating point representation is used to index too large values.
|
|
.TP
|
|
.B olcIndexSubstrIfMaxlen: <integer>
|
|
Specify the maximum length for subinitial and subfinal indices. Only
|
|
this many characters of an attribute value will be processed by the
|
|
indexing functions; any excess characters are ignored. The default is 4.
|
|
.TP
|
|
.B olcIndexSubstrIfMinlen: <integer>
|
|
Specify the minimum length for subinitial and subfinal indices. An
|
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attribute value must have at least this many characters in order to be
|
|
processed by the indexing functions. The default is 2.
|
|
.TP
|
|
.B olcIndexSubstrAnyLen: <integer>
|
|
Specify the length used for subany indices. An attribute value must have
|
|
at least this many characters in order to be processed. Attribute values
|
|
longer than this length will be processed in segments of this length. The
|
|
default is 4. The subany index will also be used in subinitial and
|
|
subfinal index lookups when the filter string is longer than the
|
|
.I olcIndexSubstrIfMaxlen
|
|
value.
|
|
.TP
|
|
.B olcIndexSubstrAnyStep: <integer>
|
|
Specify the steps used in subany index lookups. This value sets the offset
|
|
for the segments of a filter string that are processed for a subany index
|
|
lookup. The default is 2. For example, with the default values, a search
|
|
using this filter "cn=*abcdefgh*" would generate index lookups for
|
|
"abcd", "cdef", and "efgh".
|
|
|
|
.LP
|
|
Note: Indexing support depends on the particular backend in use. Also,
|
|
changing these settings will generally require deleting any indices that
|
|
depend on these parameters and recreating them with
|
|
.BR slapindex (8).
|
|
|
|
.TP
|
|
.B olcListenerThreads: <integer>
|
|
Specify the number of threads to use for the connection manager.
|
|
The default is 1 and this is typically adequate for up to 16 CPU cores.
|
|
The value should be set to a power of 2.
|
|
.TP
|
|
.B olcLocalSSF: <SSF>
|
|
Specifies the Security Strength Factor (SSF) to be given local LDAP sessions,
|
|
such as those to the ldapi:// listener. For a description of SSF values,
|
|
see
|
|
.BR olcSaslSecProps 's
|
|
.B minssf
|
|
option description. The default is 71.
|
|
.TP
|
|
.B olcLogFile: <filename>
|
|
Specify a file for recording debug log messages. By default these messages
|
|
only go to stderr and are not recorded anywhere else. Specifying a logfile
|
|
copies messages to both stderr and the logfile.
|
|
.TP
|
|
.B olcLogLevel: <integer> [...]
|
|
Specify the level at which debugging statements and operation
|
|
statistics should be syslogged (currently logged to the
|
|
.BR syslogd (8)
|
|
LOG_LOCAL4 facility).
|
|
They must be considered subsystems rather than increasingly verbose
|
|
log levels.
|
|
Some messages with higher priority are logged regardless
|
|
of the configured loglevel as soon as any logging is configured.
|
|
Log levels are additive, and available levels are:
|
|
.RS
|
|
.RS
|
|
.PD 0
|
|
.TP
|
|
.B 1
|
|
.B (0x1 trace)
|
|
trace function calls
|
|
.TP
|
|
.B 2
|
|
.B (0x2 packets)
|
|
debug packet handling
|
|
.TP
|
|
.B 4
|
|
.B (0x4 args)
|
|
heavy trace debugging (function args)
|
|
.TP
|
|
.B 8
|
|
.B (0x8 conns)
|
|
connection management
|
|
.TP
|
|
.B 16
|
|
.B (0x10 BER)
|
|
print out packets sent and received
|
|
.TP
|
|
.B 32
|
|
.B (0x20 filter)
|
|
search filter processing
|
|
.TP
|
|
.B 64
|
|
.B (0x40 config)
|
|
configuration file processing
|
|
.TP
|
|
.B 128
|
|
.B (0x80 ACL)
|
|
access control list processing
|
|
.TP
|
|
.B 256
|
|
.B (0x100 stats)
|
|
stats log connections/operations/results
|
|
.TP
|
|
.B 512
|
|
.B (0x200 stats2)
|
|
stats log entries sent
|
|
.TP
|
|
.B 1024
|
|
.B (0x400 shell)
|
|
print communication with shell backends
|
|
.TP
|
|
.B 2048
|
|
.B (0x800 parse)
|
|
entry parsing
|
|
\".TP
|
|
\".B 4096
|
|
\".B (0x1000 cache)
|
|
\"caching (unused)
|
|
\".TP
|
|
\".B 8192
|
|
\".B (0x2000 index)
|
|
\"data indexing (unused)
|
|
.TP
|
|
.B 16384
|
|
.B (0x4000 sync)
|
|
LDAPSync replication
|
|
.TP
|
|
.B 32768
|
|
.B (0x8000 none)
|
|
only messages that get logged whatever log level is set
|
|
.PD
|
|
.RE
|
|
The desired log level can be input as a single integer that combines
|
|
the (ORed) desired levels, both in decimal or in hexadecimal notation,
|
|
as a list of integers (that are ORed internally),
|
|
or as a list of the names that are shown between parenthesis, such that
|
|
.LP
|
|
.nf
|
|
olcLogLevel: 129
|
|
olcLogLevel: 0x81
|
|
olcLogLevel: 128 1
|
|
olcLogLevel: 0x80 0x1
|
|
olcLogLevel: acl trace
|
|
.fi
|
|
.LP
|
|
are equivalent.
|
|
The keyword
|
|
.B any
|
|
can be used as a shortcut to enable logging at all levels (equivalent to \-1).
|
|
The keyword
|
|
.BR none ,
|
|
or the equivalent integer representation, causes those messages
|
|
that are logged regardless of the configured olcLogLevel to be logged.
|
|
In fact, if no olcLogLevel (or a 0 level) is defined, no logging occurs,
|
|
so at least the
|
|
.B none
|
|
level is required to have high priority messages logged.
|
|
.RE
|
|
.TP
|
|
.B olcPasswordCryptSaltFormat: <format>
|
|
Specify the format of the salt passed to
|
|
.BR crypt (3)
|
|
when generating {CRYPT} passwords (see
|
|
.BR olcPasswordHash )
|
|
during processing of LDAP Password Modify Extended Operations (RFC 3062).
|
|
|
|
This string needs to be in
|
|
.BR sprintf (3)
|
|
format and may include one (and only one) %s conversion.
|
|
This conversion will be substituted with a string of random
|
|
characters from [A\-Za\-z0\-9./]. For example, "%.2s"
|
|
provides a two character salt and "$1$%.8s" tells some
|
|
versions of crypt(3) to use an MD5 algorithm and provides
|
|
8 random characters of salt. The default is "%s", which
|
|
provides 31 characters of salt.
|
|
.TP
|
|
.B olcPidFile: <filename>
|
|
The (absolute) name of a file that will hold the
|
|
.B slapd
|
|
server's process ID (see
|
|
.BR getpid (2)).
|
|
.TP
|
|
.B olcPluginLogFile: <filename>
|
|
The ( absolute ) name of a file that will contain log
|
|
messages from
|
|
.B SLAPI
|
|
plugins. See
|
|
.BR slapd.plugin (5)
|
|
for details.
|
|
.TP
|
|
.B olcReferral: <url>
|
|
Specify the referral to pass back when
|
|
.BR slapd (8)
|
|
cannot find a local database to handle a request.
|
|
If multiple values are specified, each url is provided.
|
|
.TP
|
|
.B olcReverseLookup: TRUE | FALSE
|
|
Enable/disable client name unverified reverse lookup (default is
|
|
.BR FALSE
|
|
if compiled with \-\-enable\-rlookups).
|
|
.TP
|
|
.B olcRootDSE: <file>
|
|
Specify the name of an LDIF(5) file containing user defined attributes
|
|
for the root DSE. These attributes are returned in addition to the
|
|
attributes normally produced by slapd.
|
|
|
|
The root DSE is an entry with information about the server and its
|
|
capabilities, in operational attributes.
|
|
It has the empty DN, and can be read with e.g.:
|
|
.ti +4
|
|
ldapsearch \-x \-b "" \-s base "+"
|
|
.br
|
|
See RFC 4512 section 5.1 for details.
|
|
.TP
|
|
.B olcSaslAuxprops: <plugin> [...]
|
|
Specify which auxprop plugins to use for authentication lookups. The
|
|
default is empty, which just uses slapd's internal support. Usually
|
|
no other auxprop plugins are needed.
|
|
.TP
|
|
.B olcSaslHost: <fqdn>
|
|
Used to specify the fully qualified domain name used for SASL processing.
|
|
.TP
|
|
.B olcSaslRealm: <realm>
|
|
Specify SASL realm. Default is empty.
|
|
.TP
|
|
.B olcSaslSecProps: <properties>
|
|
Used to specify Cyrus SASL security properties.
|
|
The
|
|
.B none
|
|
flag (without any other properties) causes the flag properties
|
|
default, "noanonymous,noplain", to be cleared.
|
|
The
|
|
.B noplain
|
|
flag disables mechanisms susceptible to simple passive attacks.
|
|
The
|
|
.B noactive
|
|
flag disables mechanisms susceptible to active attacks.
|
|
The
|
|
.B nodict
|
|
flag disables mechanisms susceptible to passive dictionary attacks.
|
|
The
|
|
.B noanonymous
|
|
flag disables mechanisms which support anonymous login.
|
|
The
|
|
.B forwardsec
|
|
flag require forward secrecy between sessions.
|
|
The
|
|
.B passcred
|
|
require mechanisms which pass client credentials (and allow
|
|
mechanisms which can pass credentials to do so).
|
|
The
|
|
.B minssf=<factor>
|
|
property specifies the minimum acceptable
|
|
.I security strength factor
|
|
as an integer approximate to effective key length used for
|
|
encryption. 0 (zero) implies no protection, 1 implies integrity
|
|
protection only, 56 allows DES or other weak ciphers, 112
|
|
allows triple DES and other strong ciphers, 128 allows RC4,
|
|
Blowfish and other modern strong ciphers. The default is 0.
|
|
The
|
|
.B maxssf=<factor>
|
|
property specifies the maximum acceptable
|
|
.I security strength factor
|
|
as an integer (see minssf description). The default is INT_MAX.
|
|
The
|
|
.B maxbufsize=<size>
|
|
property specifies the maximum security layer receive buffer
|
|
size allowed. 0 disables security layers. The default is 65536.
|
|
.TP
|
|
.B olcServerID: <integer> [<URL>]
|
|
Specify an integer ID from 0 to 4095 for this server (limited
|
|
to 3 hexadecimal digits). The ID may also be specified as a
|
|
hexadecimal ID by prefixing the value with "0x".
|
|
Non-zero IDs are
|
|
required when using multimaster replication and each master must have a
|
|
unique non-zero ID. Note that this requirement also applies to separate masters
|
|
contributing to a glued set of databases.
|
|
If the URL is provided, this directive may be specified
|
|
multiple times, providing a complete list of participating servers
|
|
and their IDs. The fully qualified hostname of each server should be
|
|
used in the supplied URLs. The IDs are used in the "replica id" field
|
|
of all CSNs generated by the specified server. The default value is zero, which
|
|
is only valid for single master replication.
|
|
Example:
|
|
.LP
|
|
.nf
|
|
olcServerID: 1 ldap://ldap1.example.com
|
|
olcServerID: 2 ldap://ldap2.example.com
|
|
.fi
|
|
.TP
|
|
.B olcSockbufMaxIncoming: <integer>
|
|
Specify the maximum incoming LDAP PDU size for anonymous sessions.
|
|
The default is 262143.
|
|
.TP
|
|
.B olcSockbufMaxIncomingAuth: <integer>
|
|
Specify the maximum incoming LDAP PDU size for authenticated sessions.
|
|
The default is 4194303.
|
|
.TP
|
|
.B olcTCPBuffer [listener=<URL>] [{read|write}=]<size>
|
|
Specify the size of the TCP buffer.
|
|
A global value for both read and write TCP buffers related to any listener
|
|
is defined, unless the listener is explicitly specified,
|
|
or either the read or write qualifiers are used.
|
|
See
|
|
.BR tcp (7)
|
|
for details.
|
|
Note that some OS-es implement automatic TCP buffer tuning.
|
|
.TP
|
|
.B olcThreads: <integer>
|
|
Specify the maximum size of the primary thread pool.
|
|
The default is 16; the minimum value is 2.
|
|
.TP
|
|
.B olcToolThreads: <integer>
|
|
Specify the maximum number of threads to use in tool mode.
|
|
This should not be greater than the number of CPUs in the system.
|
|
The default is 1.
|
|
.TP
|
|
.B olcWriteTimeout: <integer>
|
|
Specify the number of seconds to wait before forcibly closing
|
|
a connection with an outstanding write. This allows recovery from
|
|
various network hang conditions. A setting of 0 disables this
|
|
feature. The default is 0.
|
|
.SH TLS OPTIONS
|
|
If
|
|
.B slapd
|
|
is built with support for Transport Layer Security, there are more options
|
|
you can specify.
|
|
.TP
|
|
.B olcTLSCipherSuite: <cipher-suite-spec>
|
|
Permits configuring what ciphers will be accepted and the preference order.
|
|
<cipher-suite-spec> should be a cipher specification for
|
|
the TLS library in use (OpenSSL, GnuTLS, or Mozilla NSS).
|
|
Example:
|
|
.RS
|
|
.RS
|
|
.TP
|
|
.I OpenSSL:
|
|
olcTLSCipherSuite: HIGH:MEDIUM:+SSLv2
|
|
.TP
|
|
.I GnuTLS:
|
|
olcTLSCiphersuite: SECURE256:!AES-128-CBC
|
|
.RE
|
|
|
|
To check what ciphers a given spec selects in OpenSSL, use:
|
|
|
|
.nf
|
|
openssl ciphers \-v <cipher-suite-spec>
|
|
.fi
|
|
|
|
With GnuTLS the available specs can be found in the manual page of
|
|
.BR gnutls\-cli (1)
|
|
(see the description of the
|
|
option
|
|
.BR \-\-priority ).
|
|
|
|
In older versions of GnuTLS, where gnutls\-cli does not support the option
|
|
\-\-priority, you can obtain the \(em more limited \(em list of ciphers by calling:
|
|
|
|
.nf
|
|
gnutls\-cli \-l
|
|
.fi
|
|
|
|
When using Mozilla NSS, the OpenSSL cipher suite specifications are used and
|
|
translated into the format used internally by Mozilla NSS. There isn't an easy
|
|
way to list the cipher suites from the command line. The authoritative list
|
|
is in the source code for Mozilla NSS in the file sslinfo.c in the structure
|
|
.nf
|
|
static const SSLCipherSuiteInfo suiteInfo[]
|
|
.fi
|
|
.RE
|
|
.TP
|
|
.B olcTLSCACertificateFile: <filename>
|
|
Specifies the file that contains certificates for all of the Certificate
|
|
Authorities that
|
|
.B slapd
|
|
will recognize.
|
|
.TP
|
|
.B olcTLSCACertificatePath: <path>
|
|
Specifies the path of a directory that contains Certificate Authority
|
|
certificates in separate individual files. Usually only one of this
|
|
or the olcTLSCACertificateFile is defined. If both are specified, both
|
|
locations will be used. This directive is not supported
|
|
when using GnuTLS.
|
|
|
|
When using Mozilla NSS, <path> may contain a Mozilla NSS cert/key
|
|
database. If <path> contains a Mozilla NSS cert/key database and
|
|
CA cert files, OpenLDAP will use the cert/key database and will
|
|
ignore the CA cert files.
|
|
.TP
|
|
.B olcTLSCertificateFile: <filename>
|
|
Specifies the file that contains the
|
|
.B slapd
|
|
server certificate.
|
|
|
|
When using Mozilla NSS, if using a cert/key database (specified with
|
|
olcTLSCACertificatePath), olcTLSCertificateFile specifies
|
|
the name of the certificate to use:
|
|
.nf
|
|
olcTLSCertificateFile: Server-Cert
|
|
.fi
|
|
If using a token other than the internal built in token, specify the
|
|
token name first, followed by a colon:
|
|
.nf
|
|
olcTLSCertificateFile: my hardware device:Server-Cert
|
|
.fi
|
|
Use certutil \-L to list the certificates by name:
|
|
.nf
|
|
certutil \-d /path/to/certdbdir \-L
|
|
.fi
|
|
.TP
|
|
.B olcTLSCertificateKeyFile: <filename>
|
|
Specifies the file that contains the
|
|
.B slapd
|
|
server private key that matches the certificate stored in the
|
|
.B olcTLSCertificateFile
|
|
file. If the private key is protected with a password, the password must
|
|
be manually typed in when slapd starts. Usually the private key is not
|
|
protected with a password, to allow slapd to start without manual
|
|
intervention, so
|
|
it is of critical importance that the file is protected carefully.
|
|
|
|
When using Mozilla NSS, olcTLSCertificateKeyFile specifies the name of
|
|
a file that contains the password for the key for the certificate specified with
|
|
olcTLSCertificateFile. The modutil command can be used to turn off password
|
|
protection for the cert/key database. For example, if olcTLSCACertificatePath
|
|
specifes /etc/openldap/certdb as the location of the cert/key database, use
|
|
modutil to change the password to the empty string:
|
|
.nf
|
|
modutil \-dbdir /etc/openldap/certdb \-changepw 'NSS Certificate DB'
|
|
.fi
|
|
You must have the old password, if any. Ignore the WARNING about the running
|
|
browser. Press 'Enter' for the new password.
|
|
|
|
.TP
|
|
.B olcTLSDHParamFile: <filename>
|
|
This directive specifies the file that contains parameters for Diffie-Hellman
|
|
ephemeral key exchange. This is required in order to use a DSA certificate on
|
|
the server, or an RSA certificate missing the "key encipherment" key usage.
|
|
Note that setting this option may also enable
|
|
Anonymous Diffie-Hellman key exchanges in certain non-default cipher suites.
|
|
Anonymous key exchanges should generally be avoided since they provide no
|
|
actual client or server authentication and provide no protection against
|
|
man-in-the-middle attacks.
|
|
You should append "!ADH" to your cipher suites to ensure that these suites
|
|
are not used.
|
|
When using Mozilla NSS these parameters are always generated randomly
|
|
so this directive is ignored.
|
|
.TP
|
|
.B olcTLSECName: <name>
|
|
Specify the name of a curve to use for Elliptic curve Diffie-Hellman
|
|
ephemeral key exchange. This is required to enable ECDHE algorithms in
|
|
OpenSSL. This option is not used with GnuTLS; the curves may be
|
|
chosen in the GnuTLS ciphersuite specification. This option is also
|
|
ignored for Mozilla NSS.
|
|
.TP
|
|
.B olcTLSProtocolMin: <major>[.<minor>]
|
|
Specifies minimum SSL/TLS protocol version that will be negotiated.
|
|
If the server doesn't support at least that version,
|
|
the SSL handshake will fail.
|
|
To require TLS 1.x or higher, set this option to 3.(x+1),
|
|
e.g.,
|
|
|
|
.nf
|
|
olcTLSProtocolMin: 3.2
|
|
.fi
|
|
|
|
would require TLS 1.1.
|
|
Specifying a minimum that is higher than that supported by the
|
|
OpenLDAP implementation will result in it requiring the
|
|
highest level that it does support.
|
|
This directive is ignored with GnuTLS.
|
|
.TP
|
|
.B olcTLSRandFile: <filename>
|
|
Specifies the file to obtain random bits from when /dev/[u]random
|
|
is not available. Generally set to the name of the EGD/PRNGD socket.
|
|
The environment variable RANDFILE can also be used to specify the filename.
|
|
This directive is ignored with GnuTLS and Mozilla NSS.
|
|
.TP
|
|
.B olcTLSVerifyClient: <level>
|
|
Specifies what checks to perform on client certificates in an
|
|
incoming TLS session, if any.
|
|
The
|
|
.B <level>
|
|
can be specified as one of the following keywords:
|
|
.RS
|
|
.TP
|
|
.B never
|
|
This is the default.
|
|
.B slapd
|
|
will not ask the client for a certificate.
|
|
.TP
|
|
.B allow
|
|
The client certificate is requested. If no certificate is provided,
|
|
the session proceeds normally. If a bad certificate is provided,
|
|
it will be ignored and the session proceeds normally.
|
|
.TP
|
|
.B try
|
|
The client certificate is requested. If no certificate is provided,
|
|
the session proceeds normally. If a bad certificate is provided,
|
|
the session is immediately terminated.
|
|
.TP
|
|
.B demand | hard | true
|
|
These keywords are all equivalent, for compatibility reasons.
|
|
The client certificate is requested. If no certificate is provided,
|
|
or a bad certificate is provided, the session is immediately terminated.
|
|
|
|
Note that a valid client certificate is required in order to use the
|
|
SASL EXTERNAL authentication mechanism with a TLS session. As such,
|
|
a non-default
|
|
.B olcTLSVerifyClient
|
|
setting must be chosen to enable SASL EXTERNAL authentication.
|
|
.RE
|
|
.TP
|
|
.B olcTLSCRLCheck: <level>
|
|
Specifies if the Certificate Revocation List (CRL) of the CA should be
|
|
used to verify if the client certificates have not been revoked. This
|
|
requires
|
|
.B olcTLSCACertificatePath
|
|
parameter to be set. This parameter is ignored with GnuTLS and Mozilla NSS.
|
|
.B <level>
|
|
can be specified as one of the following keywords:
|
|
.RS
|
|
.TP
|
|
.B none
|
|
No CRL checks are performed
|
|
.TP
|
|
.B peer
|
|
Check the CRL of the peer certificate
|
|
.TP
|
|
.B all
|
|
Check the CRL for a whole certificate chain
|
|
.RE
|
|
.TP
|
|
.B olcTLSCRLFile: <filename>
|
|
Specifies a file containing a Certificate Revocation List to be used
|
|
for verifying that certificates have not been revoked. This parameter
|
|
is only valid when using GnuTLS or Mozilla NSS.
|
|
.SH DYNAMIC MODULE OPTIONS
|
|
If
|
|
.B slapd
|
|
is compiled with \-\-enable\-modules then the module-related entries will
|
|
be available. These entries are named
|
|
.B cn=module{x},cn=config
|
|
and
|
|
must have the olcModuleList objectClass. One entry should be created
|
|
per
|
|
.B olcModulePath.
|
|
Normally the config engine generates the "{x}" index in the RDN
|
|
automatically, so it can be omitted when initially loading these entries.
|
|
.TP
|
|
.B 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
|
|
.B olcModulePath
|
|
option.
|
|
.TP
|
|
.B olcModulePath: <pathspec>
|
|
Specify a list of directories to search for loadable modules. Typically
|
|
the path is colon-separated but this depends on the operating system.
|
|
The default is /usr/libexec/openldap, which is where the standard OpenLDAP install
|
|
will place its modules.
|
|
.SH SCHEMA OPTIONS
|
|
Schema definitions are created as entries in the
|
|
.B cn=schema,cn=config
|
|
subtree. These entries must have the olcSchemaConfig objectClass.
|
|
As noted above, the actual
|
|
.B cn=schema,cn=config
|
|
entry is predefined and any values specified for it are ignored.
|
|
|
|
.HP
|
|
.hy 0
|
|
.B olcAttributetypes: "(\ <oid>\
|
|
[NAME\ <name>]\
|
|
[DESC\ <description>]\
|
|
[OBSOLETE]\
|
|
[SUP\ <oid>]\
|
|
[EQUALITY\ <oid>]\
|
|
[ORDERING\ <oid>]\
|
|
[SUBSTR\ <oid>]\
|
|
[SYNTAX\ <oidlen>]\
|
|
[SINGLE\-VALUE]\
|
|
[COLLECTIVE]\
|
|
[NO\-USER\-MODIFICATION]\
|
|
[USAGE\ <attributeUsage>]\ )"
|
|
.RS
|
|
Specify an attribute type using the LDAPv3 syntax defined in RFC 4512.
|
|
The slapd parser extends the RFC 4512 definition by allowing string
|
|
forms as well as numeric OIDs to be used for the attribute OID and
|
|
attribute syntax OID.
|
|
(See the
|
|
.B olcObjectIdentifier
|
|
description.)
|
|
.RE
|
|
|
|
.HP
|
|
.hy 0
|
|
.B olcDitContentRules: "(\ <oid>\
|
|
[NAME\ <name>]\
|
|
[DESC\ <description>]\
|
|
[OBSOLETE]\
|
|
[AUX\ <oids>]\
|
|
[MUST\ <oids>]\
|
|
[MAY\ <oids>]\
|
|
[NOT\ <oids>]\ )"
|
|
.RS
|
|
Specify an DIT Content Rule using the LDAPv3 syntax defined in RFC 4512.
|
|
The slapd parser extends the RFC 4512 definition by allowing string
|
|
forms as well as numeric OIDs to be used for the attribute OID and
|
|
attribute syntax OID.
|
|
(See the
|
|
.B olcObjectIdentifier
|
|
description.)
|
|
.RE
|
|
|
|
.HP
|
|
.hy 0
|
|
.B olcObjectClasses: "(\ <oid>\
|
|
[NAME\ <name>]\
|
|
[DESC\ <description>]\
|
|
[OBSOLETE]\
|
|
[SUP\ <oids>]\
|
|
[{ ABSTRACT | STRUCTURAL | AUXILIARY }]\
|
|
[MUST\ <oids>] [MAY\ <oids>] )"
|
|
.RS
|
|
Specify an objectclass using the LDAPv3 syntax defined in RFC 4512.
|
|
The slapd parser extends the RFC 4512 definition by allowing string
|
|
forms as well as numeric OIDs to be used for the object class OID.
|
|
(See the
|
|
.B
|
|
olcObjectIdentifier
|
|
description.) Object classes are "STRUCTURAL" by default.
|
|
.RE
|
|
.TP
|
|
.B olcObjectIdentifier: <name> "{ <oid> | <name>[:<suffix>] }"
|
|
Define a string name that equates to the given OID. The string can be used
|
|
in place of the numeric OID in objectclass and attribute definitions. The
|
|
name can also be used with a suffix of the form ":xx" in which case the
|
|
value "oid.xx" will be used.
|
|
|
|
.SH GENERAL BACKEND OPTIONS
|
|
Options in these entries only apply to the configuration of a single
|
|
type of backend. All backends may support this class of options, but
|
|
currently none do.
|
|
The entry must be named
|
|
.B olcBackend=<databasetype>,cn=config
|
|
and must have the olcBackendConfig objectClass.
|
|
<databasetype>
|
|
should be one of
|
|
.BR bdb ,
|
|
.BR config ,
|
|
.BR dnssrv ,
|
|
.BR hdb ,
|
|
.BR ldap ,
|
|
.BR ldif ,
|
|
.BR mdb ,
|
|
.BR meta ,
|
|
.BR monitor ,
|
|
.BR ndb ,
|
|
.BR null ,
|
|
.BR passwd ,
|
|
.BR perl ,
|
|
.BR relay ,
|
|
.BR shell ,
|
|
or
|
|
.BR sql .
|
|
At present, no backend implements any options of this type, so this
|
|
entry should not be used.
|
|
|
|
.SH DATABASE OPTIONS
|
|
Database options are set in entries named
|
|
.B olcDatabase={x}<databasetype>,cn=config
|
|
and must have the olcDatabaseConfig objectClass. Normally the config
|
|
engine generates the "{x}" index in the RDN automatically, so it
|
|
can be omitted when initially loading these entries.
|
|
|
|
The special frontend database is always numbered "{\-1}" and the config
|
|
database is always numbered "{0}".
|
|
|
|
.SH GLOBAL DATABASE OPTIONS
|
|
Options in this section may be set in the special "frontend" database
|
|
and inherited in all the other databases. These options may be altered
|
|
by further settings in each specific database. The frontend entry must
|
|
be named
|
|
.B olcDatabase=frontend,cn=config
|
|
and must have the olcFrontendConfig objectClass.
|
|
.TP
|
|
.B olcAccess: to <what> "[ by <who> <access> <control> ]+"
|
|
Grant access (specified by <access>) to a set of entries and/or
|
|
attributes (specified by <what>) by one or more requestors (specified
|
|
by <who>).
|
|
If no access controls are present, the default policy
|
|
allows anyone and everyone to read anything but restricts
|
|
updates to rootdn. (e.g., "olcAccess: to * by * read").
|
|
See
|
|
.BR slapd.access (5)
|
|
and the "OpenLDAP Administrator's Guide" for details.
|
|
|
|
Access controls set in the frontend are appended to any access
|
|
controls set on the specific databases.
|
|
The rootdn of a database can always read and write EVERYTHING
|
|
in that database.
|
|
|
|
Extra special care must be taken with the access controls on the
|
|
config database. Unlike other databases, the default policy for the
|
|
config database is to only allow access to the rootdn. Regular users
|
|
should not have read access, and write access should be granted very
|
|
carefully to privileged administrators.
|
|
|
|
.TP
|
|
.B olcDefaultSearchBase: <dn>
|
|
Specify a default search base to use when client submits a
|
|
non-base search request with an empty base DN.
|
|
Base scoped search requests with an empty base DN are not affected.
|
|
This setting is only allowed in the frontend entry.
|
|
.TP
|
|
.B olcExtraAttrs: <attr>
|
|
Lists what attributes need to be added to search requests.
|
|
Local storage backends return the entire entry to the frontend.
|
|
The frontend takes care of only returning the requested attributes
|
|
that are allowed by ACLs.
|
|
However, features like access checking and so may need specific
|
|
attributes that are not automatically returned by remote storage
|
|
backends, like proxy backends and so on.
|
|
.B <attr>
|
|
is an attribute that is needed for internal purposes
|
|
and thus always needs to be collected, even when not explicitly
|
|
requested by clients.
|
|
This attribute is multi-valued.
|
|
.TP
|
|
.B olcPasswordHash: <hash> [<hash>...]
|
|
This option configures one or more hashes to be used in generation of user
|
|
passwords stored in the userPassword attribute during processing of
|
|
LDAP Password Modify Extended Operations (RFC 3062).
|
|
The <hash> must be one of
|
|
.BR {SSHA} ,
|
|
.BR {SHA} ,
|
|
.BR {SMD5} ,
|
|
.BR {MD5} ,
|
|
.BR {CRYPT} ,
|
|
and
|
|
.BR {CLEARTEXT} .
|
|
The default is
|
|
.BR {SSHA} .
|
|
|
|
.B {SHA}
|
|
and
|
|
.B {SSHA}
|
|
use the SHA-1 algorithm (FIPS 160-1), the latter with a seed.
|
|
|
|
.B {MD5}
|
|
and
|
|
.B {SMD5}
|
|
use the MD5 algorithm (RFC 1321), the latter with a seed.
|
|
|
|
.B {CRYPT}
|
|
uses the
|
|
.BR crypt (3).
|
|
|
|
.B {CLEARTEXT}
|
|
indicates that the new password should be
|
|
added to userPassword as clear text.
|
|
|
|
Note that this option does not alter the normal user applications
|
|
handling of userPassword during LDAP Add, Modify, or other LDAP operations.
|
|
This setting is only allowed in the frontend entry.
|
|
.TP
|
|
.B olcReadOnly: TRUE | FALSE
|
|
This option puts the database into "read-only" mode. Any attempts to
|
|
modify the database will return an "unwilling to perform" error. By
|
|
default, olcReadOnly is FALSE. Note that when this option is set
|
|
TRUE on the frontend, it cannot be reset without restarting the
|
|
server, since further writes to the config database will be rejected.
|
|
.TP
|
|
.B olcRequires: <conditions>
|
|
Specify a set of conditions to require (default none).
|
|
The directive may be specified globally and/or per-database;
|
|
databases inherit global conditions, so per-database specifications
|
|
are additive.
|
|
.B bind
|
|
requires bind operation prior to directory operations.
|
|
.B LDAPv3
|
|
requires session to be using LDAP version 3.
|
|
.B authc
|
|
requires authentication prior to directory operations.
|
|
.B SASL
|
|
requires SASL authentication prior to directory operations.
|
|
.B strong
|
|
requires strong authentication prior to directory operations.
|
|
The strong keyword allows protected "simple" authentication
|
|
as well as SASL authentication.
|
|
.B none
|
|
may be used to require no conditions (useful to clear out globally
|
|
set conditions within a particular database); it must occur first
|
|
in the list of conditions.
|
|
.TP
|
|
.B olcRestrict: <oplist>
|
|
Specify a list of operations that are restricted.
|
|
Restrictions on a specific database override any frontend setting.
|
|
Operations can be any of
|
|
.BR add ,
|
|
.BR bind ,
|
|
.BR compare ,
|
|
.BR delete ,
|
|
.BR extended[=<OID>] ,
|
|
.BR modify ,
|
|
.BR rename ,
|
|
.BR search ,
|
|
or the special pseudo-operations
|
|
.B read
|
|
and
|
|
.BR write ,
|
|
which respectively summarize read and write operations.
|
|
The use of
|
|
.I restrict write
|
|
is equivalent to
|
|
.I olcReadOnly: TRUE
|
|
(see above).
|
|
The
|
|
.B extended
|
|
keyword allows one to indicate the OID of the specific operation
|
|
to be restricted.
|
|
.TP
|
|
.B olcSchemaDN: <dn>
|
|
Specify the distinguished name for the subschema subentry that
|
|
controls the entries on this server. The default is "cn=Subschema".
|
|
.TP
|
|
.B olcSecurity: <factors>
|
|
Specify a set of security strength factors (separated by white space)
|
|
to require (see
|
|
.BR olcSaslSecprops 's
|
|
.B minssf
|
|
option for a description of security strength factors).
|
|
The directive may be specified globally and/or per-database.
|
|
.B ssf=<n>
|
|
specifies the overall security strength factor.
|
|
.B transport=<n>
|
|
specifies the transport security strength factor.
|
|
.B tls=<n>
|
|
specifies the TLS security strength factor.
|
|
.B sasl=<n>
|
|
specifies the SASL security strength factor.
|
|
.B update_ssf=<n>
|
|
specifies the overall security strength factor to require for
|
|
directory updates.
|
|
.B update_transport=<n>
|
|
specifies the transport security strength factor to require for
|
|
directory updates.
|
|
.B update_tls=<n>
|
|
specifies the TLS security strength factor to require for
|
|
directory updates.
|
|
.B update_sasl=<n>
|
|
specifies the SASL security strength factor to require for
|
|
directory updates.
|
|
.B simple_bind=<n>
|
|
specifies the security strength factor required for
|
|
.I simple
|
|
username/password authentication.
|
|
Note that the
|
|
.B transport
|
|
factor is measure of security provided by the underlying transport,
|
|
e.g. ldapi:// (and eventually IPSEC). It is not normally used.
|
|
.TP
|
|
.B olcSizeLimit: {<integer>|unlimited}
|
|
.TP
|
|
.B olcSizeLimit: size[.{soft|hard|unchecked}]=<integer> [...]
|
|
Specify the maximum number of entries to return from a search operation.
|
|
The default size limit is 500.
|
|
Use
|
|
.B unlimited
|
|
to specify no limits.
|
|
The second format allows a fine grain setting of the size limits.
|
|
Extra args can be added in the same value or as additional values.
|
|
See
|
|
.BR olcLimits
|
|
for an explanation of the different flags.
|
|
.TP
|
|
.B olcSortVals: <attr> [...]
|
|
Specify a list of multi-valued attributes whose values will always
|
|
be maintained in sorted order. Using this option will allow Modify,
|
|
Compare, and filter evaluations on these attributes to be performed
|
|
more efficiently. The resulting sort order depends on the
|
|
attributes' syntax and matching rules and may not correspond to
|
|
lexical order or any other recognizable order.
|
|
This setting is only allowed in the frontend entry.
|
|
.TP
|
|
.B olcTimeLimit: {<integer>|unlimited}
|
|
.TP
|
|
.B olcTimeLimit: time[.{soft|hard}]=<integer> [...]
|
|
Specify the maximum number of seconds (in real time)
|
|
.B slapd
|
|
will spend answering a search request. The default time limit is 3600.
|
|
Use
|
|
.B unlimited
|
|
to specify no limits.
|
|
The second format allows a fine grain setting of the time limits.
|
|
Extra args can be added in the same value or as additional values.
|
|
See
|
|
.BR olcLimits
|
|
for an explanation of the different flags.
|
|
|
|
.SH GENERAL DATABASE OPTIONS
|
|
Options in this section only apply to the specific database for
|
|
which they are defined. They are supported by every
|
|
type of backend. All of the Global Database Options may also be
|
|
used here.
|
|
.TP
|
|
.B olcAddContentAcl: TRUE | FALSE
|
|
Controls whether Add operations will perform ACL checks on
|
|
the content of the entry being added. This check is off
|
|
by default. See the
|
|
.BR slapd.access (5)
|
|
manual page for more details on ACL requirements for
|
|
Add operations.
|
|
.TP
|
|
.B olcHidden: TRUE | FALSE
|
|
Controls whether the database will be used to answer
|
|
queries. A database that is hidden will never be
|
|
selected to answer any queries, and any suffix configured
|
|
on the database will be ignored in checks for conflicts
|
|
with other databases. By default, olcHidden is FALSE.
|
|
.TP
|
|
.B olcLastMod: TRUE | FALSE
|
|
Controls whether
|
|
.B slapd
|
|
will automatically maintain the
|
|
modifiersName, modifyTimestamp, creatorsName, and
|
|
createTimestamp attributes for entries. It also controls
|
|
the entryCSN and entryUUID attributes, which are needed
|
|
by the syncrepl provider. By default, olcLastMod is TRUE.
|
|
.TP
|
|
.B olcLimits: <selector> <limit> [<limit> [...]]
|
|
Specify time and size limits based on the operation's initiator or
|
|
base DN.
|
|
The argument
|
|
.B <selector>
|
|
can be any of
|
|
.RS
|
|
.RS
|
|
.TP
|
|
anonymous | users | [<dnspec>=]<pattern> | group[/oc[/at]]=<pattern>
|
|
|
|
.RE
|
|
with
|
|
.RS
|
|
.TP
|
|
<dnspec> ::= dn[.<type>][.<style>]
|
|
.TP
|
|
<type> ::= self | this
|
|
.TP
|
|
<style> ::= exact | base | onelevel | subtree | children | regex | anonymous
|
|
|
|
.RE
|
|
DN type
|
|
.B self
|
|
is the default and means the bound user, while
|
|
.B this
|
|
means the base DN of the operation.
|
|
The term
|
|
.B anonymous
|
|
matches all unauthenticated clients.
|
|
The term
|
|
.B users
|
|
matches all authenticated clients;
|
|
otherwise an
|
|
.B exact
|
|
dn pattern is assumed unless otherwise specified by qualifying
|
|
the (optional) key string
|
|
.B dn
|
|
with
|
|
.B exact
|
|
or
|
|
.B base
|
|
(which are synonyms), to require an exact match; with
|
|
.BR onelevel ,
|
|
to require exactly one level of depth match; with
|
|
.BR subtree ,
|
|
to allow any level of depth match, including the exact match; with
|
|
.BR children ,
|
|
to allow any level of depth match, not including the exact match;
|
|
.BR regex
|
|
explicitly requires the (default) match based on POSIX (''extended'')
|
|
regular expression pattern.
|
|
Finally,
|
|
.B anonymous
|
|
matches unbound operations; the
|
|
.B pattern
|
|
field is ignored.
|
|
The same behavior is obtained by using the
|
|
.B anonymous
|
|
form of the
|
|
.B <selector>
|
|
clause.
|
|
The term
|
|
.BR group ,
|
|
with the optional objectClass
|
|
.B oc
|
|
and attributeType
|
|
.B at
|
|
fields, followed by
|
|
.BR pattern ,
|
|
sets the limits for any DN listed in the values of the
|
|
.B at
|
|
attribute (default
|
|
.BR member )
|
|
of the
|
|
.B oc
|
|
group objectClass (default
|
|
.BR groupOfNames )
|
|
whose DN exactly matches
|
|
.BR pattern .
|
|
|
|
The currently supported limits are
|
|
.B size
|
|
and
|
|
.BR time .
|
|
|
|
The syntax for time limits is
|
|
.BR time[.{soft|hard}]=<integer> ,
|
|
where
|
|
.I integer
|
|
is the number of seconds slapd will spend answering a search request.
|
|
If no time limit is explicitly requested by the client, the
|
|
.BR soft
|
|
limit is used; if the requested time limit exceeds the
|
|
.BR hard
|
|
.\"limit, an
|
|
.\".I "Administrative limit exceeded"
|
|
.\"error is returned.
|
|
limit, the value of the limit is used instead.
|
|
If the
|
|
.BR hard
|
|
limit is set to the keyword
|
|
.IR soft ,
|
|
the soft limit is used in either case; if it is set to the keyword
|
|
.IR unlimited ,
|
|
no hard limit is enforced.
|
|
Explicit requests for time limits smaller or equal to the
|
|
.BR hard
|
|
limit are honored.
|
|
If no limit specifier is set, the value is assigned to the
|
|
.BR soft
|
|
limit, and the
|
|
.BR hard
|
|
limit is set to
|
|
.IR soft ,
|
|
to preserve the original behavior.
|
|
|
|
The syntax for size limits is
|
|
.BR size[.{soft|hard|unchecked}]=<integer> ,
|
|
where
|
|
.I integer
|
|
is the maximum number of entries slapd will return answering a search
|
|
request.
|
|
If no size limit is explicitly requested by the client, the
|
|
.BR soft
|
|
limit is used; if the requested size limit exceeds the
|
|
.BR hard
|
|
.\"limit, an
|
|
.\".I "Administrative limit exceeded"
|
|
.\"error is returned.
|
|
limit, the value of the limit is used instead.
|
|
If the
|
|
.BR hard
|
|
limit is set to the keyword
|
|
.IR soft ,
|
|
the soft limit is used in either case; if it is set to the keyword
|
|
.IR unlimited ,
|
|
no hard limit is enforced.
|
|
Explicit requests for size limits smaller or equal to the
|
|
.BR hard
|
|
limit are honored.
|
|
The
|
|
.BR unchecked
|
|
specifier sets a limit on the number of candidates a search request is allowed
|
|
to examine.
|
|
The rationale behind it is that searches for non-properly indexed
|
|
attributes may result in large sets of candidates, which must be
|
|
examined by
|
|
.BR slapd (8)
|
|
to determine whether they match the search filter or not.
|
|
The
|
|
.B unchecked
|
|
limit provides a means to drop such operations before they are even
|
|
started.
|
|
If the selected candidates exceed the
|
|
.BR unchecked
|
|
limit, the search will abort with
|
|
.IR "Unwilling to perform" .
|
|
If it is set to the keyword
|
|
.IR unlimited ,
|
|
no limit is applied (the default).
|
|
If it is set to
|
|
.IR disable ,
|
|
the search is not even performed; this can be used to disallow searches
|
|
for a specific set of users.
|
|
If no limit specifier is set, the value is assigned to the
|
|
.BR soft
|
|
limit, and the
|
|
.BR hard
|
|
limit is set to
|
|
.IR soft ,
|
|
to preserve the original behavior.
|
|
|
|
In case of no match, the global limits are used.
|
|
The default values are the same as for
|
|
.B olcSizeLimit
|
|
and
|
|
.BR olcTimeLimit ;
|
|
no limit is set on
|
|
.BR unchecked .
|
|
|
|
If
|
|
.B pagedResults
|
|
control is requested, the
|
|
.B hard
|
|
size limit is used by default, because the request of a specific page size
|
|
is considered an explicit request for a limitation on the number
|
|
of entries to be returned.
|
|
However, the size limit applies to the total count of entries returned within
|
|
the search, and not to a single page.
|
|
Additional size limits may be enforced; the syntax is
|
|
.BR size.pr={<integer>|noEstimate|unlimited} ,
|
|
where
|
|
.I integer
|
|
is the max page size if no explicit limit is set; the keyword
|
|
.I noEstimate
|
|
inhibits the server from returning an estimate of the total number
|
|
of entries that might be returned
|
|
(note: the current implementation does not return any estimate).
|
|
The keyword
|
|
.I unlimited
|
|
indicates that no limit is applied to the pagedResults control page size.
|
|
The syntax
|
|
.B size.prtotal={<integer>|unlimited|disabled}
|
|
allows one to set a limit on the total number of entries that the pagedResults
|
|
control will return.
|
|
By default it is set to the
|
|
.B hard
|
|
limit.
|
|
When set,
|
|
.I integer
|
|
is the max number of entries that the whole search with pagedResults control
|
|
can return.
|
|
Use
|
|
.I unlimited
|
|
to allow unlimited number of entries to be returned, e.g. to allow
|
|
the use of the pagedResults control as a means to circumvent size
|
|
limitations on regular searches; the keyword
|
|
.I disabled
|
|
disables the control, i.e. no paged results can be returned.
|
|
Note that the total number of entries returned when the pagedResults control
|
|
is requested cannot exceed the
|
|
.B hard
|
|
size limit of regular searches unless extended by the
|
|
.B prtotal
|
|
switch.
|
|
.RE
|
|
.TP
|
|
.B olcMaxDerefDepth: <depth>
|
|
Specifies the maximum number of aliases to dereference when trying to
|
|
resolve an entry, used to avoid infinite alias loops. The default is 15.
|
|
.TP
|
|
.B olcMirrorMode: TRUE | FALSE
|
|
This option puts a replica database into "mirror" mode. Update
|
|
operations will be accepted from any user, not just the updatedn. The
|
|
database must already be configured as syncrepl consumer
|
|
before this keyword may be set. This mode also requires a
|
|
.B olcServerID
|
|
(see above) to be configured.
|
|
By default, this setting is FALSE.
|
|
.TP
|
|
.B olcPlugin: <plugin_type> <lib_path> <init_function> [<arguments>]
|
|
Configure a SLAPI plugin. See the
|
|
.BR slapd.plugin (5)
|
|
manpage for more details.
|
|
.TP
|
|
.B olcRootDN: <dn>
|
|
Specify the distinguished name that is not subject to access control
|
|
or administrative limit restrictions for operations on this database.
|
|
This DN may or may not be associated with an entry. An empty root
|
|
DN (the default) specifies no root access is to be granted. It is
|
|
recommended that the rootdn only be specified when needed (such as
|
|
when initially populating a database). If the rootdn is within
|
|
a namingContext (suffix) of the database, a simple bind password
|
|
may also be provided using the
|
|
.B olcRootPW
|
|
directive. Note that the rootdn is always needed when using syncrepl.
|
|
The
|
|
.B olcRootDN
|
|
of the
|
|
.B cn=config
|
|
database defaults to
|
|
.B cn=config
|
|
itself.
|
|
.TP
|
|
.B olcRootPW: <password>
|
|
Specify a password (or hash of the password) for the rootdn. The
|
|
password can only be set if the rootdn is within the namingContext
|
|
(suffix) of the database.
|
|
This option accepts all RFC 2307 userPassword formats known to
|
|
the server (see
|
|
.B olcPasswordHash
|
|
description) as well as cleartext.
|
|
.BR slappasswd (8)
|
|
may be used to generate a hash of a password. Cleartext
|
|
and \fB{CRYPT}\fP passwords are not recommended. If empty
|
|
(the default), authentication of the root DN is by other means
|
|
(e.g. SASL). Use of SASL is encouraged.
|
|
.TP
|
|
.B olcSubordinate: [TRUE | FALSE | advertise]
|
|
Specify that the current backend database is a subordinate of another
|
|
backend database. A subordinate database may have only one suffix. This
|
|
option may be used to glue multiple databases into a single namingContext.
|
|
If the suffix of the current database is within the namingContext of a
|
|
superior database, searches against the superior database will be
|
|
propagated to the subordinate as well. All of the databases
|
|
associated with a single namingContext should have identical rootdns.
|
|
Behavior of other LDAP operations is unaffected by this setting. In
|
|
particular, it is not possible to use moddn to move an entry from
|
|
one subordinate to another subordinate within the namingContext.
|
|
|
|
If the optional \fBadvertise\fP flag is supplied, the naming context of
|
|
this database is advertised in the root DSE. The default is to hide this
|
|
database context, so that only the superior context is visible.
|
|
|
|
If the slap tools
|
|
.BR slapcat (8),
|
|
.BR slapadd (8),
|
|
or
|
|
.BR slapindex (8)
|
|
are used on the superior database, any glued subordinates that support
|
|
these tools are opened as well.
|
|
|
|
Databases that are glued together should usually be configured with the
|
|
same indices (assuming they support indexing), even for attributes that
|
|
only exist in some of these databases. In general, all of the glued
|
|
databases should be configured as similarly as possible, since the intent
|
|
is to provide the appearance of a single directory.
|
|
|
|
Note that the subordinate functionality is implemented internally
|
|
by the \fIglue\fP overlay and as such its behavior will interact with other
|
|
overlays in use. By default, the glue overlay is automatically configured as
|
|
the last overlay on the superior database. Its position on the database
|
|
can be explicitly configured by setting an \fBoverlay glue\fP directive
|
|
at the desired position. This explicit configuration is necessary e.g.
|
|
when using the \fIsyncprov\fP overlay, which needs to follow \fIglue\fP
|
|
in order to work over all of the glued databases. E.g.
|
|
.RS
|
|
.nf
|
|
dn: olcDatabase={1}mdb,cn=config
|
|
olcSuffix: dc=example,dc=com
|
|
...
|
|
|
|
dn: olcOverlay={0}glue,olcDatabase={1}mdb,cn=config
|
|
...
|
|
|
|
dn: olcOverlay={1}syncprov,olcDatabase={1}mdb,cn=config
|
|
...
|
|
.fi
|
|
.RE
|
|
See the Overlays section below for more details.
|
|
.TP
|
|
.B olcSuffix: <dn suffix>
|
|
Specify the DN suffix of queries that will be passed to this
|
|
backend database. Multiple suffix lines can be given and at least one is
|
|
required for each database definition.
|
|
|
|
If the suffix of one database is "inside" that of another, the database
|
|
with the inner suffix must come first in the configuration file.
|
|
You may also want to glue such databases together with the
|
|
.B olcSubordinate
|
|
attribute.
|
|
.TP
|
|
.B olcSyncUseSubentry: TRUE | FALSE
|
|
Store the syncrepl contextCSN in a subentry instead of the context entry
|
|
of the database. The subentry's RDN will be "cn=ldapsync". The default is
|
|
FALSE, meaning the contextCSN is stored in the context entry.
|
|
.HP
|
|
.hy 0
|
|
.B olcSyncrepl: rid=<replica ID>
|
|
.B provider=ldap[s]://<hostname>[:port]
|
|
.B searchbase=<base DN>
|
|
.B [type=refreshOnly|refreshAndPersist]
|
|
.B [interval=dd:hh:mm:ss]
|
|
.B [retry=[<retry interval> <# of retries>]+]
|
|
.B [filter=<filter str>]
|
|
.B [scope=sub|one|base|subord]
|
|
.B [attrs=<attr list>]
|
|
.B [exattrs=<attr list>]
|
|
.B [attrsonly]
|
|
.B [sizelimit=<limit>]
|
|
.B [timelimit=<limit>]
|
|
.B [schemachecking=on|off]
|
|
.B [network\-timeout=<seconds>]
|
|
.B [timeout=<seconds>]
|
|
.B [bindmethod=simple|sasl]
|
|
.B [binddn=<dn>]
|
|
.B [saslmech=<mech>]
|
|
.B [authcid=<identity>]
|
|
.B [authzid=<identity>]
|
|
.B [credentials=<passwd>]
|
|
.B [realm=<realm>]
|
|
.B [secprops=<properties>]
|
|
.B [keepalive=<idle>:<probes>:<interval>]
|
|
.B [starttls=yes|critical]
|
|
.B [tls_cert=<file>]
|
|
.B [tls_key=<file>]
|
|
.B [tls_cacert=<file>]
|
|
.B [tls_cacertdir=<path>]
|
|
.B [tls_reqcert=never|allow|try|demand]
|
|
.B [tls_cipher_suite=<ciphers>]
|
|
.B [tls_crlcheck=none|peer|all]
|
|
.B [tls_protocol_min=<major>[.<minor>]]
|
|
.B [suffixmassage=<real DN>]
|
|
.B [logbase=<base DN>]
|
|
.B [logfilter=<filter str>]
|
|
.B [syncdata=default|accesslog|changelog]
|
|
.RS
|
|
Specify the current database as a replica which is kept up-to-date with the
|
|
master content by establishing the current
|
|
.BR slapd (8)
|
|
as a replication consumer site running a
|
|
.B syncrepl
|
|
replication engine.
|
|
The replica content is kept synchronized to the master content using
|
|
the LDAP Content Synchronization protocol. Refer to the
|
|
"OpenLDAP Administrator's Guide" for detailed information on
|
|
setting up a replicated
|
|
.B slapd
|
|
directory service using the
|
|
.B syncrepl
|
|
replication engine.
|
|
|
|
.B rid
|
|
identifies the current
|
|
.B syncrepl
|
|
directive within the replication consumer site.
|
|
It is a non-negative integer having no more than three decimal digits.
|
|
|
|
.B provider
|
|
specifies the replication provider site containing the master content
|
|
as an LDAP URI. If <port> is not given, the standard LDAP port number
|
|
(389 or 636) is used.
|
|
|
|
The content of the
|
|
.B syncrepl
|
|
replica is defined using a search
|
|
specification as its result set. The consumer
|
|
.B slapd
|
|
will send search requests to the provider
|
|
.B slapd
|
|
according to the search specification. The search specification includes
|
|
.B searchbase, scope, filter, attrs, attrsonly, sizelimit,
|
|
and
|
|
.B timelimit
|
|
parameters as in the normal search specification. The
|
|
.B exattrs
|
|
option may also be used to specify attributes that should be omitted
|
|
from incoming entries.
|
|
The \fBscope\fP defaults to \fBsub\fP, the \fBfilter\fP defaults to
|
|
\fB(objectclass=*)\fP, and there is no default \fBsearchbase\fP. The
|
|
\fBattrs\fP list defaults to \fB"*,+"\fP to return all user and operational
|
|
attributes, and \fBattrsonly\fP and \fBexattrs\fP are unset by default.
|
|
The \fBsizelimit\fP and \fBtimelimit\fP only
|
|
accept "unlimited" and positive integers, and both default to "unlimited".
|
|
Note, however, that any provider-side limits for the replication identity
|
|
will be enforced by the provider regardless of the limits requested
|
|
by the LDAP Content Synchronization operation, much like for any other
|
|
search operation.
|
|
|
|
The LDAP Content Synchronization protocol has two operation types.
|
|
In the
|
|
.B refreshOnly
|
|
operation, the next synchronization search operation
|
|
is periodically rescheduled at an interval time (specified by
|
|
.B interval
|
|
parameter; 1 day by default)
|
|
after each synchronization operation finishes.
|
|
In the
|
|
.B refreshAndPersist
|
|
operation, a synchronization search remains persistent in the provider slapd.
|
|
Further updates to the master replica will generate
|
|
.B searchResultEntry
|
|
to the consumer slapd as the search responses to the persistent
|
|
synchronization search. If the initial search fails due to an error, the
|
|
next synchronization search operation is periodically rescheduled at an
|
|
interval time (specified by
|
|
.B interval
|
|
parameter; 1 day by default)
|
|
|
|
If an error occurs during replication, the consumer will attempt to
|
|
reconnect according to the
|
|
.B 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 3
|
|
times before stop retrying. The `+' 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
|
|
.B schemachecking
|
|
parameter. The default is off.
|
|
|
|
The
|
|
.B network\-timeout
|
|
parameter sets how long the consumer will wait to establish a
|
|
network connection to the provider. Once a connection is
|
|
established, the
|
|
.B timeout
|
|
parameter determines how long the consumer will wait for the initial
|
|
Bind request to complete. The defaults for these parameters come
|
|
from
|
|
.BR ldap.conf (5).
|
|
|
|
A
|
|
.B bindmethod
|
|
of
|
|
.B simple
|
|
requires the options
|
|
.B binddn
|
|
and
|
|
.B credentials
|
|
and should only be used when adequate security services
|
|
(e.g. TLS or IPSEC) are in place.
|
|
A
|
|
.B bindmethod
|
|
of
|
|
.B sasl
|
|
requires the option
|
|
.B saslmech.
|
|
Depending on the mechanism, an authentication identity and/or
|
|
credentials can be specified using
|
|
.B authcid
|
|
and
|
|
.B credentials.
|
|
The
|
|
.B authzid
|
|
parameter may be used to specify an authorization identity.
|
|
Specific security properties (as with the
|
|
.B sasl\-secprops
|
|
keyword above) for a SASL bind can be set with the
|
|
.B secprops
|
|
option. A non default SASL realm can be set with the
|
|
.B realm
|
|
option.
|
|
The provider, other than allow authentication of the syncrepl identity,
|
|
should grant that identity appropriate access privileges to the data
|
|
that is being replicated (\fBaccess\fP directive), and appropriate time
|
|
and size limits (\fBlimits\fP directive).
|
|
|
|
The
|
|
.B keepalive
|
|
parameter sets the values of \fIidle\fP, \fIprobes\fP, and \fIinterval\fP
|
|
used to check whether a socket is alive;
|
|
.I idle
|
|
is the number of seconds a connection needs to remain idle before TCP
|
|
starts sending keepalive probes;
|
|
.I probes
|
|
is the maximum number of keepalive probes TCP should send before dropping
|
|
the connection;
|
|
.I interval
|
|
is interval in seconds between individual keepalive probes.
|
|
Only some systems support the customization of these values;
|
|
the
|
|
.B keepalive
|
|
parameter is ignored otherwise, and system-wide settings are used.
|
|
|
|
The
|
|
.B starttls
|
|
parameter specifies use of the StartTLS extended operation
|
|
to establish a TLS session before Binding to the provider. If the
|
|
.B critical
|
|
argument is supplied, the session will be aborted if the StartTLS request
|
|
fails. Otherwise the syncrepl session continues without TLS. The
|
|
.B tls_reqcert
|
|
setting defaults to "demand" and the other TLS settings default to the same
|
|
as the main slapd TLS settings.
|
|
|
|
The
|
|
.B suffixmassage
|
|
parameter allows the consumer to pull entries from a remote directory
|
|
whose DN suffix differs from the local directory. The portion of the
|
|
remote entries' DNs that matches the \fIsearchbase\fP will be replaced
|
|
with the suffixmassage DN.
|
|
|
|
Rather than replicating whole entries, the consumer can query logs of
|
|
data modifications. This mode of operation is referred to as \fIdelta
|
|
syncrepl\fP. In addition to the above parameters, the
|
|
.B logbase
|
|
and
|
|
.B logfilter
|
|
parameters must be set appropriately for the log that will be used. The
|
|
.B syncdata
|
|
parameter must be set to either "accesslog" if the log conforms to the
|
|
.BR slapo\-accesslog (5)
|
|
log format, or "changelog" if the log conforms
|
|
to the obsolete \fIchangelog\fP format. If the
|
|
.B syncdata
|
|
parameter is omitted or set to "default" then the log parameters are
|
|
ignored.
|
|
.RE
|
|
.TP
|
|
.B olcUpdateDN: <dn>
|
|
This option is only applicable in a slave
|
|
database.
|
|
It specifies the DN permitted to update (subject to access controls)
|
|
the replica. It is only needed in certain push-mode
|
|
replication scenarios. Generally, this DN
|
|
.I should not
|
|
be the same as the
|
|
.B rootdn
|
|
used at the master.
|
|
.TP
|
|
.B olcUpdateRef: <url>
|
|
Specify the referral to pass back when
|
|
.BR slapd (8)
|
|
is asked to modify a replicated local database.
|
|
If multiple values are specified, each url is provided.
|
|
|
|
.SH DATABASE-SPECIFIC OPTIONS
|
|
Each database may allow specific configuration options; they are
|
|
documented separately in the backends' manual pages. See the
|
|
.BR slapd.backends (5)
|
|
manual page for an overview of available backends.
|
|
.SH OVERLAYS
|
|
An overlay is a piece of
|
|
code that intercepts database operations in order to extend or change
|
|
them. Overlays are pushed onto
|
|
a stack over the database, and so they will execute in the reverse
|
|
of the order in which they were configured and the database itself
|
|
will receive control last of all.
|
|
|
|
Overlays must be configured as child entries of a specific database. The
|
|
entry's RDN must be of the form
|
|
.B olcOverlay={x}<overlaytype>
|
|
and the entry must have the olcOverlayConfig objectClass. Normally the
|
|
config engine generates the "{x}" index in the RDN automatically, so
|
|
it can be omitted when initially loading these entries.
|
|
|
|
See the
|
|
.BR slapd.overlays (5)
|
|
manual page for an overview of available overlays.
|
|
.SH EXAMPLES
|
|
.LP
|
|
Here is a short example of a configuration in LDIF suitable for use with
|
|
.BR slapadd (8)
|
|
:
|
|
.LP
|
|
.RS
|
|
.nf
|
|
dn: cn=config
|
|
objectClass: olcGlobal
|
|
cn: config
|
|
olcPidFile: /var/openldap/run/slapd.pid
|
|
olcAttributeOptions: x\-hidden lang\-
|
|
|
|
dn: cn=schema,cn=config
|
|
objectClass: olcSchemaConfig
|
|
cn: schema
|
|
|
|
include: file:///etc/openldap/schema/core.ldif
|
|
|
|
dn: olcDatabase=frontend,cn=config
|
|
objectClass: olcDatabaseConfig
|
|
objectClass: olcFrontendConfig
|
|
olcDatabase: frontend
|
|
# Subtypes of "name" (e.g. "cn" and "ou") with the
|
|
# option ";x\-hidden" can be searched for/compared,
|
|
# but are not shown. See \fBslapd.access\fP(5).
|
|
olcAccess: to attrs=name;x\-hidden by * =cs
|
|
# Protect passwords. See \fBslapd.access\fP(5).
|
|
olcAccess: to attrs=userPassword by * auth
|
|
# Read access to other attributes and entries.
|
|
olcAccess: to * by * read
|
|
|
|
# set a rootpw for the config database so we can bind.
|
|
# deny access to everyone else.
|
|
dn: olcDatabase=config,cn=config
|
|
objectClass: olcDatabaseConfig
|
|
olcDatabase: config
|
|
olcRootPW: {SSHA}XKYnrjvGT3wZFQrDD5040US592LxsdLy
|
|
olcAccess: to * by * none
|
|
|
|
dn: olcDatabase=bdb,cn=config
|
|
objectClass: olcDatabaseConfig
|
|
objectClass: olcBdbConfig
|
|
olcDatabase: bdb
|
|
olcSuffix: "dc=our\-domain,dc=com"
|
|
# The database directory MUST exist prior to
|
|
# running slapd AND should only be accessible
|
|
# by the slapd/tools. Mode 0700 recommended.
|
|
olcDbDirectory: /var/openldap/openldap\-data
|
|
# Indices to maintain
|
|
olcDbIndex: objectClass eq
|
|
olcDbIndex: cn,sn,mail pres,eq,approx,sub
|
|
|
|
# We serve small clients that do not handle referrals,
|
|
# so handle remote lookups on their behalf.
|
|
dn: olcDatabase=ldap,cn=config
|
|
objectClass: olcDatabaseConfig
|
|
objectClass: olcLdapConfig
|
|
olcDatabase: ldap
|
|
olcSuffix: ""
|
|
olcDbUri: ldap://ldap.some\-server.com/
|
|
.fi
|
|
.RE
|
|
.LP
|
|
Assuming the above data was saved in a file named "config.ldif" and the
|
|
/etc/openldap/slapd.d directory has been created, this command will initialize
|
|
the configuration:
|
|
.RS
|
|
.nf
|
|
slapadd \-F /etc/openldap/slapd.d \-n 0 \-l config.ldif
|
|
.fi
|
|
.RE
|
|
|
|
.LP
|
|
"OpenLDAP Administrator's Guide" contains a longer annotated
|
|
example of a slapd configuration.
|
|
|
|
Alternatively, an existing slapd.conf file can be converted to the new
|
|
format using slapd or any of the slap tools:
|
|
.RS
|
|
.nf
|
|
slaptest \-f /etc/openldap/slapd.conf \-F /etc/openldap/slapd.d
|
|
.fi
|
|
.RE
|
|
|
|
.SH FILES
|
|
.TP
|
|
/etc/openldap/slapd.conf
|
|
default slapd configuration file
|
|
.TP
|
|
/etc/openldap/slapd.d
|
|
default slapd configuration directory
|
|
.SH SEE ALSO
|
|
.BR ldap (3),
|
|
.BR ldif (5),
|
|
.BR gnutls\-cli (1),
|
|
.BR slapd.access (5),
|
|
.BR slapd.backends (5),
|
|
.BR slapd.conf (5),
|
|
.BR slapd.overlays (5),
|
|
.BR slapd.plugin (5),
|
|
.BR slapd (8),
|
|
.BR slapacl (8),
|
|
.BR slapadd (8),
|
|
.BR slapauth (8),
|
|
.BR slapcat (8),
|
|
.BR slapdn (8),
|
|
.BR slapindex (8),
|
|
.BR slappasswd (8),
|
|
.BR slaptest (8).
|
|
.LP
|
|
"OpenLDAP Administrator's Guide" (http://www.OpenLDAP.org/doc/admin/)
|
|
.SH ACKNOWLEDGEMENTS
|
|
.lf 1 ./../Project
|
|
.\" Shared Project Acknowledgement Text
|
|
.B "OpenLDAP Software"
|
|
is developed and maintained by The OpenLDAP Project <http://www.openldap.org/>.
|
|
.B "OpenLDAP Software"
|
|
is derived from the University of Michigan LDAP 3.3 Release.
|
|
.lf 2136 stdin
|