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NAME | SYNOPSIS | DESCRIPTION | OPTIONS | EXAMPLES | SEE ALSO | BUGS | ACKNOWLEDGEMENTS | COLOPHON |
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SLAPD(8C) SLAPD(8C)
slapd - Stand-alone LDAP Daemon
LIBEXECDIR/slapd [-4|-6] [-T {acl|a[dd]|auth|c[at]|
d[n]|i[ndex]|p[asswd]|s[chema]|t[est]}] [-d debug-level] [-f slapd-
config-file] [-F slapd-config-directory] [-h URLs] [-n service-name]
[-s syslog-level] [-l syslog-local-user] [-o option[=value]]
[-r directory] [-u user] [-g group] [-c cookie]
Slapd is the stand-alone LDAP daemon. It listens for LDAP connections
on any number of ports (default 389), responding to the LDAP
operations it receives over these connections. slapd is typically
invoked at boot time, usually out of /etc/rc.local. Upon startup,
slapd normally forks and disassociates itself from the invoking tty.
If configured in the config file (or config directory), the slapd
process will print its process ID (see getpid(2)) to a .pid file, as
well as the command line options during invocation to an .args file
(see slapd.conf(5)). If the -d flag is given, even with a zero
argument, slapd will not fork and disassociate from the invoking tty.
See the "OpenLDAP Administrator's Guide" for more details on slapd.
-4 Listen on IPv4 addresses only.
-6 Listen on IPv6 addresses only.
-T tool
Run in Tool mode. The tool argument selects whether to run as
slapadd, slapcat, slapdn, slapindex, slappasswd, slapschema,
or slaptest (slapacl and slapauth need the entire acl and auth
option value to be spelled out, as a is reserved to slapadd).
This option should be the first option specified when it is
used; any remaining options will be interpreted by the
corresponding slap tool program, according to the respective
man pages. Note that these tool programs will usually be
symbolic links to slapd. This option is provided for
situations where symbolic links are not provided or not
usable.
-d debug-level
Turn on debugging as defined by debug-level. If this option
is specified, even with a zero argument, slapd will not fork
or disassociate from the invoking terminal. Some general
operation and status messages are printed for any value of
debug-level. debug-level is taken as a bit string, with each
bit corresponding to a different kind of debugging
information. See <ldap_log.h> for details. Comma-separated
arrays of friendly names can be specified to select debugging
output of the corresponding debugging information. All the
names recognized by the loglevel directive described in
slapd.conf(5) are supported. If debug-level is ?, a list of
installed debug-levels is printed, and slapd exits.
Remember that if you turn on packet logging, packets
containing bind passwords will be output, so if you redirect
the log to a logfile, that file should be read-protected.
-s syslog-level
This option tells slapd at what debug-level debugging
statements should be logged to the syslog(8) facility. The
value syslog-level can be set to any value or combination
allowed by the -d switch. Slapd logs all messages selected by
syslog-level at the syslog(3) severity debug-level DEBUG, on
the unit specified with -l.
-n service-name
Specifies the service name for logging and other purposes.
Defaults to basename of argv[0], i.e.: "slapd".
-l syslog-local-user
Selects the local user of the syslog(8) facility. Value can be
LOCAL0, through LOCAL7, as well as USER and DAEMON. The
default is LOCAL4. However, this option is only permitted on
systems that support local users with the syslog(8) facility.
Logging to syslog(8) occurs at the "DEBUG" severity debug-
level.
-f slapd-config-file
Specifies the slapd configuration file. The default is
ETCDIR/slapd.conf.
-F slapd-config-directory
Specifies the slapd configuration directory. The default is
ETCDIR/slapd.d. If both -f and -F are specified, the config
file will be read and converted to config directory format and
written to the specified directory. If neither option is
specified, slapd will attempt to read the default config
directory before trying to use the default config file. If a
valid config directory exists then the default config file is
ignored. All of the slap tools that use the config options
observe this same behavior.
-h URLlist
slapd will by default serve ldap:/// (LDAP over TCP on all
interfaces on default LDAP port). That is, it will bind using
INADDR_ANY and port 389. The -h option may be used to specify
LDAP (and other scheme) URLs to serve. For example, if slapd
is given -h "ldap://127.0.0.1:9009/ ldaps:/// ldapi:///", it
will listen on 127.0.0.1:9009 for LDAP, 0.0.0.0:636 for LDAP
over TLS, and LDAP over IPC (Unix domain sockets). Host
0.0.0.0 represents INADDR_ANY (any interface). A space
separated list of URLs is expected. The URLs should be of the
LDAP, LDAPS, or LDAPI schemes, and generally without a DN or
other optional parameters (excepting as discussed below).
Support for the latter two schemes depends on selected
configuration options. Hosts may be specified by name or IPv4
and IPv6 address formats. Ports, if specified, must be
numeric. The default ldap:// port is 389 and the default
ldaps:// port is 636.
For LDAP over IPC, name is the name of the socket, and no port
is required, nor allowed; note that directory separators must
be URL-encoded, like any other characters that are special to
URLs; so the socket
/usr/local/var/ldapi
must be specified as
ldapi://%2Fusr%2Flocal%2Fvar%2Fldapi
The default location for the IPC socket is
LOCALSTATEDIR/run/ldapi
The listener permissions are indicated by "x-mod=-rwxrwxrwx",
"x-mod=0777" or "x-mod=777", where any of the "rwx" can be "-"
to suppress the related permission, while any of the "7" can
be any legal octal digit, according to chmod(1). The
listeners can take advantage of the "x-mod" extension to apply
rough limitations to operations, e.g. allow read operations
("r", which applies to search and compare), write operations
("w", which applies to add, delete, modify and modrdn), and
execute operations ("x", which means bind is required).
"User" permissions apply to authenticated users, while "other"
apply to anonymous users; "group" permissions are ignored.
For example, "ldap:///????x-mod=-rw-------" means that read
and write is only allowed for authenticated connections, and
bind is required for all operations. This feature is
experimental, and requires to be manually enabled at configure
time.
-r directory
Specifies a directory to become the root directory. slapd
will change the current working directory to this directory
and then chroot(2) to this directory. This is done after
opening listeners but before reading any configuration file or
initializing any backend. When used as a security mechanism,
it should be used in conjunction with -u and -g options.
-u user
slapd will run slapd with the specified user name or id, and
that user's supplementary group access list as set with
initgroups(3). The group ID is also changed to this user's
gid, unless the -g option is used to override. Note when used
with -r, slapd will use the user database in the change root
environment.
Note that on some systems, running as a non-privileged user
will prevent passwd back-ends from accessing the encrypted
passwords. Note also that any shell back-ends will run as the
specified non-privileged user.
-g group
slapd will run with the specified group name or id. Note when
used with -r, slapd will use the group database in the change
root environment.
-c cookie
This option provides a cookie for the syncrepl replication
consumer. The cookie is a comma separated list of name=value
pairs. Currently supported syncrepl cookie fields are rid,
sid, and csn. rid identifies a replication thread within the
consumer server and is used to find the syncrepl specification
in slapd.conf(5) or slapd-config(5) having the matching
replication identifier in its definition. The rid must be
provided in order for any other specified values to be used.
sid is the server id in a multi-master/mirror-mode
configuration. csn is the commit sequence number received by
a previous synchronization and represents the state of the
consumer replica content which the syncrepl engine will
synchronize to the current provider content. In case of
mirror-mode or multi-master replication agreement, multiple
csn values, semicolon separated, can appear. Use only the rid
part to force a full reload.
-o option[=value]
This option provides a generic means to specify options
without the need to reserve a separate letter for them.
It supports the following options:
slp={on|off|slp-attrs}
When SLP support is compiled into slapd, disable it
(off),
enable it by registering at SLP DAs without specific
SLP attributes (on), or with specific SLP attributes
slp-attrs that must be an SLP attribute list definition
according to the SLP standard.
For example, "slp=(tree=production),(server-
type=OpenLDAP),(server-version=2.4.15)" registers at
SLP DAs with the three SLP attributes tree, server-type
and server-version that have the values given above.
This allows one to specifically query the SLP DAs for
LDAP servers holding the production tree in case
multiple trees are available.
To start slapd and have it fork and detach from the terminal and
start serving the LDAP databases defined in the default config file,
just type:
LIBEXECDIR/slapd
To start slapd with an alternate configuration file, and turn on
voluminous debugging which will be printed on standard error, type:
LIBEXECDIR/slapd -f /var/tmp/slapd.conf -d 255
To test whether the configuration file is correct or not, type:
LIBEXECDIR/slapd -Tt
ldap(3), slapd.conf(5), slapd-config(5), slapd.access(5), slapacl(8),
slapadd(8), slapauth(8), slapcat(8), slapdn(8), slapindex(8),
slappasswd(8), slapschema(8), slaptest(8).
"OpenLDAP Administrator's Guide" (http://www.OpenLDAP.org/doc/admin/)
See http://www.openldap.org/its/
OpenLDAP Software is developed and maintained by The OpenLDAP Project
<http://www.openldap.org/>. OpenLDAP Software is derived from the
University of Michigan LDAP 3.3 Release.
This page is part of the OpenLDAP (an open source implementation of
the Lightweight Directory Access Protocol) project. Information
about the project can be found at ⟨http://www.openldap.org/⟩. If you
have a bug report for this manual page, see
⟨http://www.openldap.org/its/⟩. This page was obtained from the
project's upstream Git repository
⟨git://git.openldap.org/openldap.git⟩ on 2018-02-02. (At that time,
the date of the most recent commit that was found in the repository
was 2018-01-30.) If you discover any rendering problems in this HTML
version of the page, or you believe there is a better or more up-to-
date source for the page, or you have corrections or improvements to
the information in this COLOPHON (which is not part of the original
manual page), send a mail to man-pages@man7.org
OpenLDAP LDVERSION RELEASEDATE SLAPD(8C)
Pages that refer to this page: ldap(3), ldap_sync(3), slapd.access(5), slapd-asyncmeta(5), slapd.backends(5), slapd-bdb(5), slapd.conf(5), slapd-config(5), slapd-dnssrv(5), slapd-ldap(5), slapd-ldif(5), slapd-mdb(5), slapd-meta(5), slapd-monitor(5), slapd-ndb(5), slapd-null(5), slapd.overlays(5), slapd-passwd(5), slapd-perl(5), slapd.plugin(5), slapd-relay(5), slapd-shell(5), slapd-sock(5), slapd-sql(5), slapd-wt(5), slapo-chain(5), slapo-dds(5), slapo-dynlist(5), slapo-memberof(5), slapo-pbind(5), slapo-pcache(5), slapo-retcode(5), slapo-rwm(5), slapacl(8), slapadd(8), slapauth(8), slapcat(8), slapdn(8), slapindex(8), slapmodify(8), slappasswd(8), slapschema(8), slaptest(8)
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