.TH SLAPD.CONF 5 "RELEASEDATE" "OpenLDAP LDVERSION"
-.\" Copyright 1998-2004 The OpenLDAP Foundation All Rights Reserved.
+.\" Copyright 1998-2006 The OpenLDAP Foundation All Rights Reserved.
.\" Copying restrictions apply. See COPYRIGHT/LICENSE.
.\" $OpenLDAP$
.SH NAME
daemon. This configuration file is also used by the
.BR slurpd (8)
replication daemon and by the SLAPD tools
+.BR slapacl (8),
.BR slapadd (8),
+.BR slapauth (8),
.BR slapcat (8),
+.BR slapdn (8),
+.BR slapindex (8),
and
-.BR slapindex (8).
+.BR slaptest (8).
.LP
The
.B slapd.conf
as a whole (including all backends), followed by zero or more database
backend definitions that contain information specific to a backend
instance.
+The configuration options are case-insensitive;
+their value, on a case by case basis, may be case-sensitive.
.LP
The general format of
.B slapd.conf
.LP
If a line begins with white space, it is considered a continuation
of the previous line. Blank lines and comment lines beginning with
-a `#' character are ignored. (Note: continuation lines are unwrapped
-before comment processing is applied.)
+a `#' character are ignored. Note: continuation lines are unwrapped
+before comment processing is applied.
.LP
Arguments on configuration lines are separated by white space. If an
argument contains white space, the argument should be enclosed in
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., "access to * by * read").
+The rootdn can always read and write EVERYTHING!
See
.BR slapd.access (5)
and the "OpenLDAP's Administrator's Guide" for details.
.B bind_anon_dn
allows unauthenticated (anonymous) bind when DN is not empty.
.B update_anon
-allow unauthenticated (anonymous) update operations to be processed
+allows unauthenticated (anonymous) update operations to be processed
(subject to access controls and other administrative limits).
+.B proxy_authz_anon
+allows unauthenticated (anonymous) proxy authorization control to be processed
+(subject to access controls, authorization and other administrative limits).
.TP
.B argsfile <filename>
The ( absolute ) name of a file that will hold the
as the option with the range name sans the trailing `-'.
That is, `x-foo-bar-' matches `x-foo-bar' and `x-foo-bar-baz'.
-RFC 2251 reserves options beginning with `x-' for private experiments.
-Other options should be registered with IANA, see RFC 3383 section 3.4.
+RFC 4520 reserves options beginning with `x-' for private experiments.
+Other options should be registered with IANA, see RFC 4520 section 3.5.
OpenLDAP also has the `binary' option built in, but this is a transfer
option, not a tagging option.
.HP
[NO\-USER\-MODIFICATION]\
[USAGE\ <attributeUsage>]\ )"
.RS
-Specify an attribute type using the LDAPv3 syntax defined in RFC 2252.
-The slapd parser extends the RFC 2252 definition by allowing string
+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
The
.B all
flag requires both authorizations to succeed.
-The rules are simply regular expressions specifying which DNs are allowed
+.LP
+.RS
+The rules are mechanisms to specify which identities are allowed
to perform proxy authorization.
The
.I authzFrom
.B identity
or a set of identities; it can take three forms:
.RS
-.RS
.TP
.B ldap:///<base>??[<scope>]?<filter>
.RE
.B u[<mech>[<realm>]]:<pattern>
.RE
.RS
+.B group[/objectClass[/attributeType]]:<pattern>
+.RE
+.RS
.B <pattern>
.RE
.RS
.I <pattern>
to be normalized according to the DN normalization rules, or the special
.I regex
-style, which causes
+style, which causes the
.I <pattern>
-to be compiled according to
-.BR regex (7).
+to be treated as a POSIX (''extended'') regular expression, as
+discussed in
+.BR regex (7)
+and/or
+.BR re_format (7).
+A pattern of
+.I *
+means any non-anonymous DN.
The third form is a SASL
.BR id ,
with the optional fields
for those mechanisms that support one.
The need to allow the specification of a mechanism is still debated,
and users are strongly discouraged to rely on this possibility.
+The fourth form is a group specification, consisting of the keyword
+.BR group ,
+optionally followed by the specification of the group
+.B objectClass
+and member
+.BR attributeType .
+The group with DN
+.B <pattern>
+is searched with base scope, and in case of match, the values of the
+member
+.B attributeType
+are searched for the asserted DN.
For backwards compatibility, if no identity type is provided, i.e. only
.B <pattern>
is present, an
.I authzTo
can impact security, users are strongly encouraged
to explicitly set the type of identity specification that is being used.
+A subset of these rules can be used as third arg in the
+.B authz-regexp
+statement (see below); significantly, the
+.I URI
+and the
+.I dn.exact:<dn>
+forms.
.RE
.TP
.B authz-regexp <match> <replace>
.RE
This name is then compared against the
.B match
-regular expression, and if the match is successful, the name is
-replaced with the
+POSIX (''extended'') regular expression, and if the match is successful,
+the name is replaced with the
.B replace
string. If there are wildcard strings in the
.B match
.B UID=$1,OU=Accounts,DC=example,DC=com
.RE
-The replaced name can be either a DN or an LDAP URI. If the
-latter, the server will use the URI to search its own database(s)
+The replaced name can be either a DN, i.e. a string prefixed by "dn:",
+or an LDAP URI.
+If the latter, the server will use the URI to search its own database(s)
and, if the search returns exactly one entry, the name is
replaced by the DN of that entry. The LDAP URI must have no
-hostport, attrs, or extensions components, e.g.
+hostport, attrs, or extensions components, but the filter is mandatory,
+e.g.
.RS
.TP
.B ldap:///OU=Accounts,DC=example,DC=com??one?(UID=$1)
.RE
+The protocol portion of the URI must be strictly
+.BR ldap .
+Note that this search is subject to access controls. Specifically,
+the authentication identity must have "auth" access in the subject.
+
Multiple
.B authz-regexp
options can be given in the configuration file to allow for multiple matching
.B conn_max_pending_auth <integer>
Specify the maximum number of pending requests for an authenticated session.
The default is 1000.
-.\"-- NEW_LOGGING option --
-.\".TP
-.\".B debug <subsys> <level>
-.\"Specify a logging level for a particular subsystem. The subsystems include
-.\".B global
-.\"a global level for all subsystems,
-.\".B acl
-.\"the ACL engine,
-.\".B backend
-.\"the backend databases,
-.\".B cache
-.\"the entry cache manager,
-.\".B config
-.\"the config file reader,
-.\".B connection
-.\"the connection manager,
-.\".B cyrus
-.\"the Cyrus SASL library interface,
-.\".B filter
-.\"the search filter processor,
-.\".B getdn
-.\"the DN normalization library,
-.\".B index
-.\"the database indexer,
-.\".B liblber
-.\"the ASN.1 BER library,
-.\".B module
-.\"the dynamic module loader,
-.\".B operation
-.\"the LDAP operation processors,
-.\".B sasl
-.\"the SASL authentication subsystem,
-.\".B schema
-.\"the schema processor, and
-.\".B tls
-.\"the TLS library interface. This is not an exhaustive list; there are many
-.\"other subsystems and more are added over time.
-.\"
-.\"The levels are, in order of decreasing priority:
-.\".B emergency, alert, critical, error, warning, notice, information, entry,
-.\".B args, results, detail1, detail2
-.\"An integer may be used instead, with 0 corresponding to
-.\".B emergency
-.\"up to 11 for
-.\".BR detail2 .
-.\"The
-.\".B entry
-.\"level logs function entry points,
-.\".B args
-.\"adds function call parameters, and
-.\".B results
-.\"adds the function results to the logs.
-.\"The
-.\".B detail1
-.\"and
-.\".B detail2
-.\"levels add even more low level detail from individual functions.
.TP
.B defaultsearchbase <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.
.TP
.B disallow <features>
Specify a set of features (separated by white space) to
disallow (default none).
.B bind_anon
-disables acceptance of anonymous bind requests.
+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 bind_krbv4
-disables Kerberos V4 (bind) authentication.
.B tls_2_anon
-disables Start TLS from forcing session to anonymous status (see also
-.BR tls_authc ).
+disables forcing session to anonymous status (see also
+.BR tls_authc )
+upon StartTLS operation receipt.
.B tls_authc
-disables StartTLS if authenticated (see also
+disallows the StartTLS operation if authenticated (see also
.BR tls_2_anon ).
.HP
.hy 0
[MAY\ <oids>]\
[NOT\ <oids>]\ )"
.RS
-Specify an DIT Content Rule using the LDAPv3 syntax defined in RFC 2252.
-The slapd parser extends the RFC 2252 definition by allowing string
+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 include <filename>
Read additional configuration information from the given file before
continuing with the next line of the current file.
+.TP
+.B index_substr_if_minlen <integer>
+Specify the minimum length for subinitial and subfinal indices. An
+attribute value must have at least this many characters in order to be
+processed by the indexing functions. The default is 2.
+.TP
+.B index_substr_if_maxlen <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 index_substr_any_len <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 index_substr_if_maxlen
+value.
+.TP
+.B index_substr_any_step <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".
+
.\"-- NEW_LOGGING option --
.\".TP
.\".B logfile <filename>
.\"only go to stderr and are not recorded anywhere else. Specifying a logfile
.\"copies messages to both stderr and the logfile.
.TP
-.B loglevel <integer>
+.B localSSF <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 sasl-secprops 's
+.B minssf
+option description. The default is 71.
+.TP
+.B loglevel <integer> [...]
Specify the level at which debugging statements and operation
statistics should be syslogged (currently logged to the
.BR syslogd (8)
-LOG_LOCAL4 facility). Log levels are additive, and available levels
-are:
+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 some logging is configured,
+otherwise anything is logged at all.
+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
-heavy trace debugging
+.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 brackets, such that
+.LP
+.nf
+ loglevel 129
+ loglevel 0x81
+ loglevel 128 1
+ loglevel 0x80 0x1
+ loglevel 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 loglevel to be logged.
+In fact, if no loglevel (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 moduleload <filename>
.hy 0
.B objectclass "(\ <oid>\
[NAME\ <name>]\
- [DESC\ <description]\
+ [DESC\ <description>]\
[OBSOLETE]\
[SUP\ <oids>]\
[{ ABSTRACT | STRUCTURAL | AUXILIARY }]\
[MUST\ <oids>] [MAY\ <oids>] )"
.RS
-Specify an objectclass using the LDAPv3 syntax defined in RFC 2252.
-The slapd parser extends the RFC 2252 definition by allowing string
+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
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 random
+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
.B slurpd
server's command line options
if started without the debugging command line option.
+If it appears after a
+.B replogfile
+directive, the args file is specific to the
+.BR slurpd (8)
+instance that handles that replication log.
.TP
.B replica-pidfile
The ( absolute ) name of a file that will hold the
server's process ID ( see
.BR getpid (2)
) if started without the debugging command line option.
+If it appears after a
+.B replogfile
+directive, the pid file is specific to the
+.BR slurpd (8)
+instance that handles that replication log.
.TP
.B replicationinterval
The number of seconds
.B slurpd
waits before checking the replogfile for changes.
+If it appears after a
+.B replogfile
+directive, the replication interval is specific to the
+.BR slurpd (8)
+instance that handles that replication log.
.TP
.B require <conditions>
Specify a set of conditions (separated by white space) to
require (default none).
-The directive may be specified globally and/or per-database.
+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
The strong keyword allows protected "simple" authentication
as well as SASL authentication.
.B none
-may be used to require no conditions (useful for clearly globally
-set conditions within a particular database).
+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 reverse-lookup on | off
Enable/disable client name unverified reverse lookup (default is
controls the entries on this server. The default is "cn=Subschema".
.TP
.B security <factors>
-Specify a set of factors (separated by white space) to require.
-An integer value is associated with each factor and is roughly
-equivalent of the encryption key length to require. A value
-of 112 is equivalent to 3DES, 128 to Blowfish, etc..
+Specify a set of security strength factors (separated by white space)
+to require (see
+.BR sasl-secprops '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.
Specify the maximum number of entries to return from a search operation.
The default size limit is 500.
Use
-.B -1
-or
.B unlimited
to specify no limits.
The second format allows a fine grain setting of the size limits.
Specify the maximum incoming LDAP PDU size for authenticated sessions.
The default is 4194303.
.TP
-.B srvtab <filename>
-Specify the srvtab file in which the kerberos keys necessary for
-authenticating clients using kerberos can be found. This option is only
-meaningful if you are using Kerberos authentication.
-.TP
.B threads <integer>
Specify the maximum size of the primary thread pool.
-The default is 16.
+The default is 16; the minimum value is 2.
.TP
.B timelimit {<integer>|unlimited}
.TP
.B slapd
will spend answering a search request. The default time limit is 3600.
Use
-.B -1
-or
.B unlimited
to specify no limits.
The second format allows a fine grain setting of the time limits.
.BR limits
for an explanation of the different flags.
.TP
-.B ucdata-path <path>
-Specify the path to the directory containing the Unicode character
-tables. The default path is DATADIR/ucdata.
+.B tool-threads <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.
+.\"ucdata-path is obsolete / ignored...
+.\".TP
+.\".B ucdata-path <path>
+.\"Specify the path to the directory containing the Unicode character
+.\"tables. The default path is DATADIR/ucdata.
.SH TLS OPTIONS
If
.B slapd
file. Currently, the private key must not be protected with a password, so
it is of critical importance that it is protected carefully.
.TP
+.B TLSDHParamFile <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. If multiple sets of parameters are present in the file, all of
+them will be processed. Note that setting this option may also enable
+Anonymous Diffie-Hellman key exchanges in certain non-default cipher suites.
+You should append "!ADH" to your cipher suites if you have changed them
+from the default, otherwise no certificate exchanges or verification will
+be done.
+.TP
.B TLSRandFile <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.
.B TLSVerifyClient
setting must be chosen to enable SASL EXTERNAL authentication.
.RE
+.TP
+.B TLSCRLCheck <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 TLSCACertificatePath
+parameter to be set.
+.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
.SH GENERAL BACKEND OPTIONS
Options in this section only apply to the configuration file section
for the specified backend. They are supported by every
.B backend <databasetype>
Mark the beginning of a backend definition. <databasetype>
should be one of
-.B bdb,
-.B dnssrv,
-.B ldap,
-.B ldbm,
-.B meta,
-.B monitor,
-.B null,
-.B passwd,
-.B perl,
-.B shell,
-.B sql,
+.BR bdb ,
+.BR config ,
+.BR dnssrv ,
+.BR hdb ,
+.BR ldap ,
+.BR ldbm ,
+.BR ldif ,
+.BR meta ,
+.BR monitor ,
+.BR null ,
+.BR passwd ,
+.BR perl ,
+.BR relay ,
+.BR shell ,
or
-.B tcl,
+.BR sql ,
depending on which backend will serve the database.
.SH GENERAL DATABASE OPTIONS
.B database <databasetype>
Mark the beginning of a new database instance definition. <databasetype>
should be one of
-.B bdb,
-.B dnssrv,
-.B ldap,
-.B ldbm,
-.B meta,
-.B monitor,
-.B null,
-.B passwd,
-.B perl,
-.B shell,
-.B sql,
+.BR bdb ,
+.BR config ,
+.BR dnssrv ,
+.BR hdb ,
+.BR ldap ,
+.BR ldbm ,
+.BR ldif ,
+.BR meta ,
+.BR monitor ,
+.BR null ,
+.BR passwd ,
+.BR perl ,
+.BR relay ,
+.BR shell ,
or
-.B tcl,
+.BR sql ,
depending on which backend will serve the database.
.TP
.B lastmod on | off
.B slapd
will automatically maintain the
modifiersName, modifyTimestamp, creatorsName, and
-createTimestamp attributes for entries. By default, lastmod is on.
+createTimestamp attributes for entries. It also controls
+the entryCSN and entryUUID attributes, which are needed
+by the syncrepl provider. By default, lastmod is on.
.TP
.B limits <who> <limit> [<limit> [...]]
Specify time and size limits based on who initiated an operation.
.BR children ,
to allow any level of depth match, not including the exact match;
.BR regex
-explicitly requires the (default) match based on regular expression
-pattern, as detailed in
-.BR regex (7).
+explicitly requires the (default) match based on POSIX (''extended'')
+regular expression pattern.
Finally,
.B anonymous
matches unbound operations; the
The syntax for time limits is
.BR time[.{soft|hard}]=<integer> ,
where
-.BR integer
+.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, 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 0 or to the keyword
+limit is set to the keyword
.IR soft ,
-the soft limit is used in either case; if it is set to
-.I -1
-or to the keyword
-.IR none ,
+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 flag is set, the value is assigned to the
+If no limit specifier is set, the value is assigned to the
.BR soft
limit, and the
.BR hard
-limit is set to zero, to preserve the original behavior.
+limit is set to
+.IR soft ,
+to preserve the original behavior.
The syntax for size limits is
.BR size[.{soft|hard|unchecked}]=<integer> ,
where
-.BR integer
+.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, 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 0 or to the keyword
+limit is set to the keyword
.IR soft ,
-the soft limit is used in either case; if it is set to
-.I -1
-or to the keyword
-.IR none ,
+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
-flag sets a limit on the number of candidates a search request is allowed
+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
-.I -1
-or to the keyword
-.IR none ,
+.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 flag is set, the value is assigned to the
+If no limit specifier is set, the value is assigned to the
.BR soft
limit, and the
.BR hard
-limit is set to zero, to preserve the original behavior.
+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 of
control is requested, the
.B hard
size limit is used by default, because the request of a specific page size
-is considered as an explicit request for a limitation on the number
+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|none} ,
+.BR size.pr={<integer>|noEstimate|unlimited} ,
where
-.B integer
+.I integer
is the max page size if no explicit limit is set; the keyword
.I noEstimate
-inhibits the server to return an estimate of the total number
-of entries that will be returned; the keyword
-.I none
+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>|none|disabled}
+.B size.prtotal={<integer>|unlimited|disabled}
allows to set a limit on the total number of entries that a pagedResults
control allows to return.
By default it is set to the
.B hard
limit.
When set,
-.B integer
+.I integer
is the max number of entries that the whole search with pagedResults control
can return.
Use
-.B none
-to allow unlimited number of entries to be returned, i.e. to use
-pagedResults as a means to allow clients to circumvent size limitations
-on regular searches; the keyword
+.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
Specifies the maximum number of aliases to dereference when trying to
resolve an entry, used to avoid infinite alias loops. The default is 1.
.TP
+.B mirrormode on | off
+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 a slurpd or syncrepl consumer
+before this keyword may be set. This mode must be used with extreme
+care, as it does not offer any consistency guarantees.
+By default, mirrormode is off.
+.TP
.B overlay <overlay-name>
Add the specified overlay to this database. An overlay is a piece of
code that intercepts database operations in order to extend or change
.B bindmethod=simple|sasl [binddn=<simple DN>] [credentials=<simple password>]
.B [saslmech=<SASL mech>] [secprops=<properties>] [realm=<realm>]
.B [authcId=<authentication ID>] [authzId=<authorization ID>]
-.B [attr[!]=<attr list>]
+.B [attrs[!]=<attr list>]
.RS
Specify a replication site for this database. Refer to the "OpenLDAP
Administrator's Guide" for detailed information on setting up a replicated
An
.B attr list
can be given after the
-.B attr
+.B attrs
keyword to allow the selective replication of the listed attributes only;
if the optional
.B !
in a directory with limited read/write/execute access as the replication
logs may contain sensitive information.
.TP
+.B restrict <oplist>
+Specify a whitespace separated list of operations that are restricted.
+If defined inside a database specification, restrictions apply only
+to that database, otherwise they are global.
+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 readonly on
+(see above).
+The
+.B extended
+keyword allows to indicate the OID of the specific operation
+to be restricted.
+.TP
.B rootdn <dn>
Specify the distinguished name that is not subject to access control
or administrative limit restrictions for operations on this database.
a namingContext (suffix) of the database, a simple bind password
may also be provided using the
.B rootpw
-directive.
+directive. Note that the rootdn is always needed when using syncrepl.
.TP
.B rootpw <password>
Specify a password (or hash of the password) for the rootdn. The
If the suffix of one database is "inside" that of another, the database
with the inner suffix must come first in the configuration file.
.TP
-.B subordinate
+.B subordinate [advertise]
Specify that the current backend database is a subordinate of another
-backend database. A subordinate database may have only one suffix. This
+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
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 \fIsubordinate\fP 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 backend. Its position on the backend
+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
+ database bdb
+ suffix dc=example,dc=com
+ ...
+ overlay glue
+ overlay syncprov
+.fi
+.RE
.HP
.hy 0
.B syncrepl rid=<replica ID>
.B provider=ldap[s]://<hostname>[:port]
+.B searchbase=<base DN>
.B [type=refreshOnly|refreshAndPersist]
.B [interval=dd:hh:mm:ss]
-.B [searchbase=<base DN>]
+.B [retry=[<retry interval> <# of retries>]+]
.B [filter=<filter str>]
-.B [scope=sub|one|base]
+.B [scope=sub|one|base|subord]
.B [attrs=<attr list>]
.B [attrsonly]
.B [sizelimit=<limit>]
.B [timelimit=<limit>]
.B [schemachecking=on|off]
-.B [updatedn=<dn>]
.B [bindmethod=simple|sasl]
.B [binddn=<dn>]
.B [saslmech=<mech>]
.B [credentials=<passwd>]
.B [realm=<realm>]
.B [secprops=<properties>]
+.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_ciphersuite=<ciphers>]
+.B [tls_crlcheck=none|peer|all]
+.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
.B searchbase, scope, filter, attrs, attrsonly, sizelimit,
and
.B timelimit
-parameters as in the normal search specification.
-The search specification for the LDAP Content Synchronization operation
-has the same value syntax and the same default values as in the
-.BR ldapsearch (1)
-client search tool.
+parameters as in the normal search specification.
+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 is unset by default.
+The \fBsizelimit\fP and \fBtimelimit\fP only
+accept "unlimited" and positive integers, and both default to "unlimited".
The LDAP Content Synchronization protocol has two operation types.
In the
.B refreshOnly
Further updates to the master replica will generate
.B searchResultEntry
to the consumer slapd as the search responses to the persistent
-synchronization search. The schema checking can be enforced at the LDAP Sync
+synchronization search.
+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 updatedn
-parameter specifies the DN in the consumer site
-which is allowed to make changes to the replica.
-The DN should have read/write access to the replica database.
-Generally, this DN
-.I should not
-be the same as the
-.B rootdn
-of the master database.
A
.B bindmethod
of
option. A non default SASL realm can be set with the
.B realm
option.
+
+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. Note that the
+main slapd TLS settings are not used by the syncrepl engine;
+by default the TLS parameters from ETCDIR/ldap.conf will be used.
+TLS settings may be specified here, in which case the ldap.conf settings
+will be completely ignored.
+
+Rather than replicating whole entries, the consumer can query logs of
+data modifications. This mode of operation is referred to as \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 updatedn <dn>
manual pages.
.TP
.B bdb
-This is the recommended backend for a normal slapd database.
-However, it takes more care than with the LDBM backend to configure
-it properly.
-It uses the Sleepycat Berkeley DB (BDB) package to store data.
+This is the recommended primary backend for a normal slapd database.
+It takes care to configure it properly.
+It uses the transactional database interface of the Sleepycat Berkeley
+DB (BDB) package to store data.
.TP
-.B ldbm
-This is the database backend which is easiest to configure.
-However, it does not offer the data durability features of the BDB
-backend.
-It uses Berkeley DB or GDBM to store data.
+.B config
+This backend is used to manage the configuration of slapd run-time.
.TP
.B dnssrv
This backend is experimental.
It serves up referrals based upon SRV resource records held in the
Domain Name System.
.TP
+.B hdb
+This is a variant of the BDB backend that uses a hierarchical database
+layout which supports subtree renames.
+.TP
.B ldap
This backend acts as a proxy to forward incoming requests to another
LDAP server.
.TP
+.B ldbm
+This is an easy-to-configure but obsolete database backend. It
+does not offer the data durability features of the BDB and HDB
+backends and hence is deprecated in favor of these robust backends.
+LDBM uses lightweight non-transactional DB interfaces,
+such as those providing by GDBM or Berkeley DB, to store data.
+.TP
+.B ldif
+This database uses the filesystem to build the tree structure
+of the database, using plain ascii files to store data.
+Its usage should be limited to very simple databases, where performance
+is not a requirement.
+.TP
.B meta
This backend performs basic LDAP proxying with respect to a set of
-remote LDAP servers. It is an enhancement of the ldap backend. The
-proxy cache extension of meta backend provides answering of search
-requests from the proxy using results of previously cached requests.
+remote LDAP servers. It is an enhancement of the ldap backend.
.TP
.B monitor
This backend provides information about the running status of the slapd
interpreter into slapd.
It runs Perl subroutines to implement LDAP operations.
.TP
+.B relay
+This backend is experimental.
+It redirects LDAP operations to another database
+in the same server, based on the naming context of the request.
+Its use requires the
+.B rwm
+overlay (see
+.BR slapo-rwm (5)
+for details) to rewrite the naming context of the request.
+It is primarily intended to implement virtual views on databases
+that actually store data.
+.TP
.B shell
This backend executes external programs to implement LDAP operations.
-It is is primarily intended to be used in prototypes.
+It is primarily intended to be used in prototypes.
.TP
.B sql
This backend is experimental.
It services LDAP requests from an SQL database.
+.SH OVERLAYS
+The following overlays can be compiled into slapd.
+They are documented in the
+.BR slapo-<overlay> (5)
+manual pages.
.TP
-.B tcl
-This backend is experimental.
-It embeds a
-.BR Tcl (3tcl)
-interpreter into slapd.
-It runs Tcl commands to implement LDAP operations.
+.B accesslog
+Access Logging.
+This overlay can record accesses to a given backend database on another
+database.
+.TP
+.B auditlog
+Audit Logging.
+This overlay records changes on a given backend database to an LDIF log
+file.
+By default it is not built.
+.TP
+.B chain
+Chaining.
+This overlay allows automatic referral chasing when a referral would
+have been returned, either when configured by the server or when
+requested by the client.
+.TP
+.B denyop
+Deny Operation.
+This overlay allows selected operations to be denied, similar to the
+\fBrestrict\fP option.
+.TP
+.B dyngroup
+Dynamic Group.
+This is a demo overlay which extends the Compare operation to detect
+members of a dynamic group.
+It has no effect on any other operations.
+.TP
+.B dynlist
+Dynamic List.
+This overlay allows expansion of dynamic groups and more.
+.TP
+.B lastmod
+Last Modification.
+This overlay maintains a service entry in the database with the DN,
+modification type, modifiersName and modifyTimestamp of the last write
+operation performed on that database.
+.TP
+.B pcache
+Proxycache.
+This overlay allows caching of LDAP search requests in a local database.
+It is most often used with the ldap or meta backends.
+.TP
+.B ppolicy
+Password Policy.
+This overlay provides a variety of password control mechanisms,
+e.g. password aging, password reuse and duplication control, mandatory
+password resets, etc.
+.TP
+.B refint
+Referential Integrity.
+This overlay can be used with a backend database such as
+.BR slapd-bdb (5)
+to maintain the cohesiveness of a schema which utilizes reference
+attributes.
+.TP
+.B retcode
+Return Code.
+This overlay is useful to test the behavior of clients when
+server-generated erroneous and/or unusual responses occur.
+.TP
+.B rwm
+Rewrite/remap.
+This overlay is experimental.
+It performs basic DN/data rewrite and
+objectClass/attributeType mapping.
+.TP
+.B syncprov
+Syncrepl Provider.
+This overlay implements the provider-side support for
+.B syncrepl
+replication, including persistent search functionality.
+.TP
+.B translucent
+Translucent Proxy.
+This overlay can be used with a backend database such as
+.BR slapd-bdb (5)
+to create a "translucent proxy".
+Content of entries retrieved from a remote LDAP server can be partially
+overridden by the database.
+.TP
+.B unique
+Attribute Uniqueness.
+This overlay can be used with a backend database such as
+.BR slapd-bdb (5)
+to enforce the uniqueness of some or all attributes within a subtree.
.SH EXAMPLES
.LP
Here is a short example of a configuration file:
# option ";x-hidden" can be searched for/compared,
# but are not shown. See \fBslapd.access\fP(5).
attributeoptions x-hidden lang-
-access to attr=name;x-hidden by * =cs
+access to attrs=name;x-hidden by * =cs
+
+# Protect passwords. See \fBslapd.access\fP(5).
+access to attrs=userPassword by * auth
+# Read access to other attributes and entries.
+access to * by * read
database bdb
suffix "dc=our-domain,dc=com"
default slapd configuration file
.SH SEE ALSO
.BR ldap (3),
-.BR slapd-bdb (5),
-.BR slapd-dnssrv (5),
-.BR slapd-ldap (5),
-.BR slapd-ldbm (5),
-.BR slapd-meta (5),
-.BR slapd-monitor (5),
-.BR slapd-null (5),
-.BR slapd-passwd (5),
-.BR slapd-perl (5),
-.BR slapd-shell (5),
-.BR slapd-sql (5),
-.BR slapd-tcl (5),
+.BR slapd\-bdb (5),
+.BR slapd\-dnssrv (5),
+.BR slapd\-hdb (5),
+.BR slapd\-ldap (5),
+.BR slapd\-ldbm (5),
+.BR slapd\-ldif (5),
+.BR slapd\-meta (5),
+.BR slapd\-monitor (5),
+.BR slapd\-null (5),
+.BR slapd\-passwd (5),
+.BR slapd\-perl (5),
+.BR slapd\-relay (5),
+.BR slapd\-shell (5),
+.BR slapd\-sql (5),
.BR slapd.access (5),
.BR slapd.plugin (5),
.BR slapd.replog (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 slurpd (8),
+.BR slaptest (8),
+.BR slurpd (8).
+
+Known overlays are documented in
+.BR slapo\-accesslog (5),
+.BR slapo\-auditlog (5),
+.BR slapo\-chain (5),
+.BR slapo\-dynlist (5),
+.BR slapo\-lastmod (5),
+.BR slapo\-pcache (5),
+.BR slapo\-ppolicy (5),
+.BR slapo\-refint (5),
+.BR slapo\-retcode (5),
+.BR slapo\-rwm (5),
+.BR slapo\-syncprov (5),
+.BR slapo\-translucent (5),
+.BR slapo\-unique (5).
.LP
"OpenLDAP Administrator's Guide" (http://www.OpenLDAP.org/doc/admin/)
.SH ACKNOWLEDGEMENTS