SLAPD(8C) SLAPD(8C)
NAME
slapd - Stand-alone LDAP Daemon
SYNOPSIS
/usr/libexec/slapd [-[4|6]] [-T {acl|add|auth|cat|dn|index|passwd|test}] [-d debug-level] [-f
slapd-config-file] [-F slapd-config-directory] [-h URLs] [-n service-name] [-s syslog-level] [-l sys-log-local-user] syslog-local-user]
log-local-user] [-r directory] [-u user] [-g group] [-c cookie]
DESCRIPTION
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 disasso-ciates disassociates
ciates 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.
Slapd can be configured to provide replicated service for a database with the help of slurpd, the
standalone LDAP update replication daemon. See slurpd(8) for details.
See the "OpenLDAP Administrator's Guide" for more details on slapd.
OPTIONS
-4 Listen on IPv4 addresses only.
-6 Listen on IPv6 addresses only.
-T {a|c|d|i|p|t|acl|auth}
Run in Tool mode. The additional argument selects whether to run as slapadd, slapcat, slapdn,
slapindex, slappasswd, 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 cor-responding corresponding
responding 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 opera-tion operation
tion 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. 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 level debugging statements should be logged to the syslog(8)
facility.
-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.
-f slapd-config-file
Specifies the slapd configuration file. The default is /etc/openldap/slapd.conf.
-F slapd-config-directory
Specifies the slapd configuration directory. The default is /etc/openldap/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 repre-sents represents
sents 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 for-mats. formats.
mats. Ports, if specified, must be numeric. The default ldap:// port is 389 and the default
ldaps:// port is 636.
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" "xmod"
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" per-missions permissions
missions apply to authenticated users, while "other" apply to anonymous users; "group" permis-sions permissions
sions 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 speci-fied specified
fied 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 and
csn. rid identifies a replication thread within the consumer server and is used to find the
syncrepl specification in slapd.conf(5) having the matching replication identifier in its def-inition. definition.
inition. The rid must be provided in order for any other specified values to be used. 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.
EXAMPLES
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:
/usr/libexec/slapd
To start slapd with an alternate configuration file, and turn on voluminous debugging which will be
printed on standard error, type:
/usr/libexec/slapd -f /var/tmp/slapd.conf -d 255
To test whether the configuration file is correct or not, type:
/usr/libexec/slapd -Tt
SEE ALSO
ldap(3), slapd.conf(5), slapd.access(5), slapacl(8), slapadd(8), slapauth(8), slapcat(8), slapdn(8),
slapindex(8), slappasswd(8), slaptest(8), slurpd(8)
"OpenLDAP Administrator's Guide" (http://www.OpenLDAP.org/doc/admin/)
BUGS
See http://www.openldap.org/its/
ACKNOWLEDGEMENTS
OpenLDAP is developed and maintained by The OpenLDAP Project (http://www.openldap.org/) OpenLDAP is
derived from University of Michigan LDAP 3.3 Release.
OpenLDAP 2.3.27 2006/08/19 SLAPD(8C)
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