slapauth - Check a list of string-represented IDs for LDAP authc/authz


/usr/sbin/slapauth [ -d debug-level] [ -f slapd.conf] [ -F confdir] [ -M mech] [ -o option[=value]] [ -R realm] [ -U authcID] [ -v] [ -X authzID] ID [...]


Slapauth is used to check the behavior of the slapd in mapping identities for authentication and authorization purposes, as specified in slapd.conf(5). It opens the slapd.conf(5) configuration file or the slapd-config(5) backend, reads in the authz-policy/olcAuthzPolicy and authz-regexp/olcAuthzRegexp directives, and then parses the ID list given on the command-line.


-d debug-level
 enable debugging messages as defined by the specified debug-level; see slapd(8) for details.
-f slapd.conf
 specify an alternative slapd.conf(5) file.
-F confdir
 specify a config directory. 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, an attempt to read the default config directory will be made before trying to use the default config file. If a valid config directory exists then the default config file is ignored.
-M mech specify a mechanism.
-o option[=value]
 Specify an option with a(n optional) value. Possible generic options/values are:
syslog=<subsystems> (see ‘-s’ in slapd(8)) syslog-level=<level> (see ‘-S’ in slapd(8)) syslog-user=<user> (see ‘-l’ in slapd(8))

-R realm specify a realm.
-U authcID
 specify an ID to be used as authcID throughout the test session. If present, and if no authzID is given, the IDs in the ID list are treated as authzID.
-X authzID
 specify an ID to be used as authzID throughout the test session. If present, and if no authcID is given, the IDs in the ID list are treated as authcID. If both authcID and authzID are given via command line switch, the ID list cannot be present.
-v enable verbose mode.


The command

        /usr/sbin/slapauth -f //etc/openldap/slapd.conf -v \
            -U bjorn -X u:bjensen

tests whether the user bjorn can assume the identity of the user bjensen provided the directives

        authz-policy from
        authz-regexp "^uid=([^,]+).*,cn=auth$"

are defined in slapd.conf(5).


ldap(3), slapd(8), slaptest(8)

"OpenLDAP Administrator’s Guide" (


OpenLDAP Software is developed and maintained by The OpenLDAP Project <>. OpenLDAP Software is derived from University of Michigan LDAP 3.3 Release.

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