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SLAPD(8C)							     SLAPD(8C)

       slapd - Stand-alone LDAP	Daemon

       /usr/local/libexec/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-con-
       fig-file]   [-F slapd-config-directory]	 [-h URLs]   [-n service-name]
       [-s syslog-level] [-l syslog-local-user]	[-o option[=value]] [-r	direc-
       tory] [-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  op-
	      tion  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	corre-
	      sponding 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 correspond-
	      ing  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	corre-
	      sponding 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

       -n service-name
	      Specifies	 the service name for logging and other	purposes.  De-
	      faults 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  /usr/lo-

       -F slapd-config-directory
	      Specifies	 the  slapd  configuration  directory.	The default is
	      /usr/local/etc/openldap/slapd.d.	If both	-f and -F  are	speci-
	      fied,  the  config file will be read and converted to config di-
	      rectory format and written to the	specified directory.  If  nei-
	      ther 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 in-
	      terfaces on default LDAP port).  That is,	it will	bind using IN-
	      ADDR_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:// ldaps:/// ldapi:///", it will
	      listen on for LDAP,  for  LDAP  over
	      TLS, and LDAP over IPC (Unix domain sockets).  Host rep-
	      resents 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  pa-
	      rameters (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


	      must be specified	as


	      The default location for the IPC socket is /var/db/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  limita-
	      tions  to	operations, e.g. allow read operations ("r", which ap-
	      plies to search and compare), write operations ("w",  which  ap-
	      plies 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 listen-
	      ers  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	 init-
	      groups(3).  The group ID is also changed to this user's gid, un-
	      less 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  con-
	      sumer.   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 con-
	      sumer 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-provider configuration.  csn is the  commit  sequence
	      number received by a previous synchronization and	represents the
	      state of the consumer content which  the	syncrepl  engine  will
	      synchronize  to the current provider content.  In	case of	multi-
	      provider replication agreement, multiple csn  values,  semicolon
	      separated,  can  appear.	 Use only the rid part to force	a full

       -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:

		     When  SLP	support	 is  compiled  into  slapd, disable it
		      enable it	by registering at SLP DAs without specific SLP
		     attributes	 (on), or with specific	SLP attributes slp-at-
		     trs that must be an SLP attribute list definition accord-
		     ing to the	SLP standard.

		     For  example,  "slp=(tree=production),(server-type=OpenL-
		     DAP),(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

       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


       To  start slapd with an alternate configuration file, and turn on volu-
       minous debugging	which will be printed on standard error, type:

	    /usr/local/libexec/slapd -f	/var/tmp/slapd.conf -d 255

       To test whether the configuration file is correct or not, type:

	    /usr/local/libexec/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), slap-
       passwd(8), slapschema(8), slaptest(8).

       "OpenLDAP Administrator's Guide"	(


       OpenLDAP	Software is developed and maintained by	The  OpenLDAP  Project
       <>.  OpenLDAP Software is derived from the Uni-
       versity of Michigan LDAP	3.3 Release.

OpenLDAP 2.4.51			  2020/08/11			     SLAPD(8C)


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