2. EL 6 ELS
  3. krb5-server-ldap
  4. kdb5_ldap_util(8)

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KDB5_LDAP_UTIL(8) System Manager's Manual KDB5_LDAP_UTIL(8)

NAME

kdb5_ldap_util - Kerberos Configuration Utility

SYNOPSIS

kdb5_ldap_util [-D user_dn [-w passwd]] [-H ldapuri] command [command_options]

DESCRIPTION

kdb5_ldap_util allows an administrator to manage realms, Kerberos services and ticket policies.

COMMAND-LINE OPTIONS

Specifies the Distinguished name (DN) of the user who has sufficient rights to perform the operation on the LDAP server.
Specifies the password of user_dn. This option is not recommended.
Specifies the URI of the LDAP server.

COMMANDS

Creates realm in directory. Options:
Specifies the list of subtrees containing the principals of a realm. The list contains the DNs of the subtree objects separated by colon(:).
Specifies the scope for searching the principals under the subtree. The possible values are 1 or one (one level), 2 or sub (subtrees).
Specifies the DN of the container object in which the principals of a realm will be created. If the container reference is not configured for a realm, the principals will be created in the realm container.
Specifies the key type of the master key in the database; the default is that given in kdc.conf.
Specifies the version number of the master key in the database; the default is 1. Note that 0 is not allowed.
Specifies that the master database password should be read from the TTY rather than fetched from a file on the disk.
Specifies the master database password. This option is not recommended.
Specifies the stash file of the master database password.
Specifies that the stash file is to be created.
Specifies maximum ticket life for principals in this realm.
Specifies maximum renewable life of tickets for principals in this realm.
Specifies the ticket flags. If this option is not specified, by default, none of the flags are set. This means all the ticket options will be allowed and no restriction will be set.

The various flags are:

{-|+}allow_postdated
-allow_postdated prohibits principals from obtaining postdated tickets. (Sets the KRB5_KDB_DISALLOW_POSTDATED flag.) +allow_postdated clears this flag.
{-|+}allow_forwardable
-allow_forwardable prohibits principals from obtaining forwardable tickets. (Sets the KRB5_KDB_DISALLOW_FORWARDABLE flag.) +allow_forwardable clears this flag.
{-|+}allow_renewable
-allow_renewable prohibits principals from obtaining renewable tickets. (Sets the KRB5_KDB_DISALLOW_RENEWABLE flag.) +allow_renewable clears this flag.
{-|+}allow_proxiable
-allow_proxiable prohibits principals from obtaining proxiable tickets. (Sets the KRB5_KDB_DISALLOW_PROXIABLE flag.) +allow_proxiable clears this flag.
{-|+}allow_dup_skey
-allow_dup_skey Disables user-to-user authentication for principals by prohibiting principals from obtaining a session key for another user. (Sets the KRB5_KDB_DISALLOW_DUP_SKEY flag.) +allow_dup_skey clears this flag.
{-|+}requires_preauth
+requires_preauth requires principals to preauthenticate before being allowed to kinit. (Sets the KRB5_KDB_REQUIRES_PRE_AUTH flag.) -requires_preauth clears this flag.
{-|+}requires_hwauth
+requires_hwauth requires principals to preauthenticate using a hardware device before being allowed to kinit. (Sets the KRB5_KDB_REQUIRES_HW_AUTH flag.) -requires_hwauth clears this flag.
{-|+}allow_svr
-allow_svr prohibits the issuance of service tickets for principals. (Sets the KRB5_KDB_DISALLOW_SVR flag.) +allow_svr clears this flag.
{-|+}allow_tgs_req
-allow_tgs_req specifies that a Ticket-Granting Service (TGS) request for a service ticket for principals is not permitted. This option is useless for most things. +allow_tgs_req clears this flag. The default is +allow_tgs_req. In effect, -allow_tgs_req sets the KRB5_KDB_DISALLOW_TGT_BASED flag on principals in the database.
{-|+}allow_tix
-allow_tix forbids the issuance of any tickets for principals. +allow_tix clears this flag. The default is +allow_tix. In effect, -allow_tix sets the KRB5_KDB_DISALLOW_ALL_TIX flag on principals in the database.
{-|+}needchange
+needchange sets a flag in attributes field to force a password change; -needchange clears it. The default is -needchange. In effect, +needchange sets the KRB5_KDB_REQUIRES_PWCHANGE flag on principals in the database.
{-|+}password_changing_service
+password_changing_service sets a flag in the attributes field marking principal as a password change service principal (useless for most things). -password_changing_service clears the flag. This flag intentionally has a long name. The default is -password_changing_service. In effect, +password_changing_service sets the KRB5_KDB_PWCHANGE_SERVICE flag on principals in the database.
Specifies the Kerberos realm of the database; by default the realm returned by krb5_default_local_realm(3) is used.
Specifies the list of KDC service objects serving the realm. The list contains the DNs of the KDC service objects separated by colon(:).
Specifies the list of Administration service objects serving the realm. The list contains the DNs of the Administration service objects separated by colon(:).
kdb5_ldap_util -D cn=admin,o=org -H ldaps://ldap-server1.mit.edu create -subtrees o=org -sscope SUB -r ATHENA.MIT.EDU 
Password for "cn=admin,o=org":
Initializing database for realm 'ATHENA.MIT.EDU'
You will be prompted for the database Master Password.
It is important that you NOT FORGET this password.
Enter KDC database master key:
Re-enter KDC database master key to verify:

Modifies the attributes of a realm. Options:

Specifies the list of subtrees containing the principals of a realm. The list contains the DNs of the subtree objects separated by colon(:). This list replaces the existing list.
Specifies the scope for searching the principals under the subtrees. The possible values are 1 or one (one level), 2 or sub (subtrees).
Specifies the DN of the container object in which the principals of a realm will be created.
Specifies maximum ticket life for principals in this realm.
Specifies maximum renewable life of tickets for principals in this realm.
Specifies the ticket flags. If this option is not specified, by default, none of the flags are set. This means all the ticket options will be allowed and no restriction will be set.

The various flags are:

{-|+}allow_postdated
-allow_postdated prohibits principals from obtaining postdated tickets. (Sets the KRB5_KDB_DISALLOW_POSTDATED flag.) +allow_postdated clears this flag.
{-|+}allow_forwardable
-allow_forwardable prohibits principals from obtaining forwardable tickets. (Sets the KRB5_KDB_DISALLOW_FORWARDABLE flag.) +allow_forwardable clears this flag.
{-|+}allow_renewable
-allow_renewable prohibits principals from obtaining renewable tickets. (Sets the KRB5_KDB_DISALLOW_RENEWABLE flag.) +allow_renewable clears this flag.
{-|+}allow_proxiable
-allow_proxiable prohibits principals from obtaining proxiable tickets. (Sets the KRB5_KDB_DISALLOW_PROXIABLE flag.) +allow_proxiable clears this flag.
{-|+}allow_dup_skey
-allow_dup_skey Disables user-to-user authentication for principals by prohibiting principals from obtaining a session key for another user. (Sets the KRB5_KDB_DISALLOW_DUP_SKEY flag.) +allow_dup_skey clears this flag.
{-|+}requires_preauth
+requires_preauth requires principals to preauthenticate before being allowed to kinit. (Sets the KRB5_KDB_REQUIRES_PRE_AUTH flag.) -requires_preauth clears this flag.
{-|+}requires_hwauth
+requires_hwauth requires principals to preauthenticate using a hardware device before being allowed to kinit. (Sets the KRB5_KDB_REQUIRES_HW_AUTH flag.) -requires_hwauth clears this flag.
{-|+}allow_svr
-allow_svr prohibits the issuance of service tickets for principals. (Sets the KRB5_KDB_DISALLOW_SVR flag.) +allow_svr clears this flag.
{-|+}allow_tgs_req
-allow_tgs_req specifies that a Ticket-Granting Service (TGS) request for a service ticket for principals is not permitted. This option is useless for most things. +allow_tgs_req clears this flag. The default is +allow_tgs_req. In effect, -allow_tgs_req sets the KRB5_KDB_DISALLOW_TGT_BASED flag on principals in the database.
{-|+}allow_tix
-allow_tix forbids the issuance of any tickets for principals. +allow_tix clears this flag. The default is +allow_tix. In effect, -allow_tix sets the KRB5_KDB_DISALLOW_ALL_TIX flag on principals in the database.
{-|+}needchange
+needchange sets a flag in attributes field to force a password change; -needchange clears it. The default is -needchange. In effect, +needchange sets the KRB5_KDB_REQUIRES_PWCHANGE flag on principals in the database.
{-|+}password_changing_service
+password_changing_service sets a flag in the attributes field marking principal as a password change service principal (useless for most things). -password_changing_service clears the flag. This flag intentionally has a long name. The default is -password_changing_service. In effect, +password_changing_service sets the KRB5_KDB_PWCHANGE_SERVICE flag on principals in the database.
Specifies the Kerberos realm of the database; by default the realm returned by krb5_default_local_realm(3) is used.
Specifies the list of KDC service objects serving the realm. The list contains the DNs of the KDC service objects separated by a colon (:). This list replaces the existing list.
Specifies the list of KDC service objects that need to be removed from the existing list. The list contains the DNs of the KDC service objects separated by a colon (:).
Specifies the list of KDC service objects that need to be added to the existing list. The list contains the DNs of the KDC service objects separated by a colon (:).
Specifies the list of Administration service objects serving the realm. The list contains the DNs of the Administration service objects separated by a colon (:). This list replaces the existing list.
Specifies the list of Administration service objects that need to be removed from the existing list. The list contains the DNs of the Administration service objects separated by a colon (:).
Specifies the list of Administration service objects that need to be added to the existing list. The list contains the DNs of the Administration service objects separated by a colon (:).
kdb5_ldap_util -D cn=admin,o=org -H ldaps://ldap-server1.mit.edu modify +requires_preauth -r ATHENA.MIT.EDU 
Password for "cn=admin,o=org":
Displays the attributes of a realm. Options:
Specifies the Kerberos realm of the database; by default the realm returned by krb5_default_local_realm(3) is used.
kdb5_ldap_util -D cn=admin,o=org -H ldaps://ldap-server1.mit.edu view -r ATHENA.MIT.EDU 
Password for "cn=admin,o=org":


               Realm Name: ATHENA.MIT.EDU


                  Subtree: ou=users,o=org


                  Subtree: ou=servers,o=org


              SearchScope: ONE


      Maximum ticket life: 0 days 01:00:00


   Maximum renewable life: 0 days 10:00:00


             Ticket flags: DISALLOW_FORWARDABLE REQUIRES_PWCHANGE
Destroys an existing realm. Options:
If specified, will not prompt the user for confirmation.
Specifies the Kerberos realm of the database; by default the realm returned by krb5_default_local_realm(3) is used.
kdb5_ldap_util -D cn=admin,o=org -H ldaps://ldap-server1.mit.edu destroy -r ATHENA.MIT.EDU 
Password for "cn=admin,o=org":
Deleting KDC database of 'ATHENA.MIT.EDU', are you sure?
(type 'yes' to confirm)? yes
OK, deleting database of 'ATHENA.MIT.EDU'...

Lists the name of realms.

kdb5_ldap_util -D cn=admin,o=org -H ldaps://ldap-server1.mit.edu list
Password for "cn=admin,o=org":
ATHENA.MIT.EDU
OPENLDAP.MIT.EDU
MEDIA-LAB.MIT.EDU
Allows an administrator to store the password for service object in a file so that KDC and Administration server can use it to authenticate to the LDAP server. Options:
Specifies the complete path of the service password file. By default, /usr/local/var/service_passwd is used.
Specifies Distinguished name (DN) of the service object whose password is to be stored in file.
kdb5_ldap_util stashsrvpw -f /home/andrew/conf_keyfile cn=service-kdc,o=org 
Password for "cn=service-kdc,o=org":
Re-enter password for "cn=service-kdc,o=org":
Creates a ticket policy in directory. Options:
Specifies the Kerberos realm of the database; by default the realm returned by krb5_default_local_realm(3) is used.
Specifies maximum ticket life for principals.
Specifies maximum renewable life of tickets for principals.
Specifies the ticket flags. If this option is not specified, by default, none of the flags are set. This means all the ticket options will be allowed and no restriction will be set.

The various flags are:

{-|+}allow_postdated
-allow_postdated prohibits principals from obtaining postdated tickets. (Sets the KRB5_KDB_DISALLOW_POSTDATED flag.) +allow_postdated clears this flag.
{-|+}allow_forwardable
-allow_forwardable prohibits principals from obtaining forwardable tickets. (Sets the KRB5_KDB_DISALLOW_FORWARDABLE flag.) +allow_forwardable clears this flag.
{-|+}allow_renewable
-allow_renewable prohibits principals from obtaining renewable tickets. (Sets the KRB5_KDB_DISALLOW_RENEWABLE flag.) +allow_renewable clears this flag.
{-|+}allow_proxiable
-allow_proxiable prohibits principals from obtaining proxiable tickets. (Sets the KRB5_KDB_DISALLOW_PROXIABLE flag.) +allow_proxiable clears this flag.
{-|+}allow_dup_skey
-allow_dup_skey Disables user-to-user authentication for principals by prohibiting principals from obtaining a session key for another user. (Sets the KRB5_KDB_DISALLOW_DUP_SKEY flag.) +allow_dup_skey clears this flag.
{-|+}requires_preauth
+requires_preauth requires principals to preauthenticate before being allowed to kinit. (Sets the KRB5_KDB_REQUIRES_PRE_AUTH flag.) -requires_preauth clears this flag.
{-|+}requires_hwauth
+requires_hwauth requires principals to preauthenticate using a hardware device before being allowed to kinit. (Sets the KRB5_KDB_REQUIRES_HW_AUTH flag.) -requires_hwauth clears this flag.
{-|+}allow_svr
-allow_svr prohibits the issuance of service tickets for principals. (Sets the KRB5_KDB_DISALLOW_SVR flag.) +allow_svr clears this flag.
{-|+}allow_tgs_req
-allow_tgs_req specifies that a Ticket-Granting Service (TGS) request for a service ticket for principals is not permitted. This option is useless for most things. +allow_tgs_req clears this flag. The default is +allow_tgs_req. In effect, -allow_tgs_req sets the KRB5_KDB_DISALLOW_TGT_BASED flag on principals in the database.
{-|+}allow_tix
-allow_tix forbids the issuance of any tickets for principals. +allow_tix clears this flag. The default is +allow_tix. In effect, -allow_tix sets the KRB5_KDB_DISALLOW_ALL_TIX flag on principals in the database.
{-|+}needchange
+needchange sets a flag in attributes field to force a password change; -needchange clears it. The default is -needchange. In effect, +needchange sets the KRB5_KDB_REQUIRES_PWCHANGE flag on principals in the database.
{-|+}password_changing_service
+password_changing_service sets a flag in the attributes field marking principal as a password change service principal (useless for most things). -password_changing_service clears the flag. This flag intentionally has a long name. The default is -password_changing_service. In effect, +password_changing_service sets the KRB5_KDB_PWCHANGE_SERVICE flag on principals in the database.
Specifies the name of the ticket policy.
kdb5_ldap_util -D cn=admin,o=org -H ldaps://ldap-server1.mit.edu create_policy -r ATHENA.MIT.EDU -maxtktlife "1 day" -maxrenewlife "1 week" -allow_postdated +needchange -allow_forwardable tktpolicy 
Password for "cn=admin,o=org":
Modifies the attributes of a ticket policy. Options are same as create_policy.
Specifies the Kerberos realm of the database; by default the realm returned by krb5_default_local_realm(3) is used.
kdb5_ldap_util -D cn=admin,o=org -H ldaps://ldap-server1.mit.edu modify_policy -r ATHENA.MIT.EDU -maxtktlife "60 minutes" -maxrenewlife "10 hours" +allow_postdated -requires_preauth tktpolicy 
Password for "cn=admin,o=org":
Displays the attributes of a ticket policy. Options:
Specifies the name of the ticket policy.
kdb5_ldap_util -D cn=admin,o=org -H ldaps://ldap-server1.mit.edu view_policy -r ATHENA.MIT.EDU tktpolicy 
Password for "cn=admin,o=org":


            Ticket policy: tktpolicy


      Maximum ticket life: 0 days 01:00:00


   Maximum renewable life: 0 days 10:00:00


             Ticket flags: DISALLOW_FORWARDABLE REQUIRES_PWCHANGE
Destroys an existing ticket policy. Options:
Specifies the Kerberos realm of the database; by default the realm returned by krb5_default_local_realm(3) is used.
Forces the deletion of the policy object. If not specified, will be prompted for confirmation while deleting the policy. Enter yes to confirm the deletion.
Specifies the name of the ticket policy.
kdb5_ldap_util -D cn=admin,o=org -H ldaps://ldap-server1.mit.edu destroy_policy -r ATHENA.MIT.EDU tktpolicy 
Password for "cn=admin,o=org":
This will delete the policy object 'tktpolicy', are you sure?
(type 'yes' to confirm)? yes
** policy object 'tktpolicy' deleted.
Lists the ticket policies in realm if specified or in the default realm. Options:
Specifies the Kerberos realm of the database; by default the realm returned by krb5_default_local_realm(3) is used.
kdb5_ldap_util -D cn=admin,o=org -H ldaps://ldap-server1.mit.edu list_policy -r ATHENA.MIT.EDU 
Password for "cn=admin,o=org":
tktpolicy
tmppolicy
userpolicy

Allows an administrator to set password for service objects such as KDC and Administration server in eDirectory and store them in a file. The -fileonly option stores the password in a file and not in the eDirectory object. Options:
Generates and sets a random password. This options can be specified to store the password both in eDirectory and a file. The -fileonly option can not be used if -randpw option is already specified.
Stores the password only in a file and not in eDirectory. The -randpw option can not be used when -fileonly options is specified.
Specifies complete path of the service password file. By default, /usr/local/var/service_passwd is used.
Specifies Distinguished name (DN) of the service object whose password is to be set.
kdb5_ldap_util setsrvpw -D cn=admin,o=org setsrvpw -fileonly -f /home/andrew/conf_keyfile cn=service-kdc,o=org 
Password for "cn=admin,o=org":
Password for "cn=service-kdc,o=org":
Re-enter password for "cn=service-kdc,o=org":
Creates a service in directory and assigns appropriate rights. Options:
Specifies the service is a KDC service
Specifies the service is a Administration service
Specifies the list of entries separated by a colon (:). Each entry consists of the hostname or IP address of the server hosting the service, transport protocol, and the port number of the service separated by a pound sign (#). For example, server1#tcp#88:server2#udp#89.
Specifies the list of realms that are to be associated with this service. The list contains the name of the realms separated by a colon (:).
Generates and sets a random password. This option is used to set the random password for the service object in directory and also to store it in the file. The -fileonly option can not be used if -randpw option is specified.
Stores the password only in a file and not in eDirectory. The -randpw option can not be used when -fileonly option is specified.
Specifies the complete path of the file where the service object password is stashed.
Specifies Distinguished name (DN) of the Kerberos service to be created.
kdb5_ldap_util -D cn=admin,o=org create_service -kdc -randpw -f /home/andrew/conf_keyfile cn=service-kdc,o=org 
Password for "cn=admin,o=org":
File does not exist. Creating the file /home/andrew/conf_keyfile...
Modifies the attributes of a service and assigns appropriate rights. Options:
Specifies the list of entries separated by a colon (:). Each entry consists of a host name or IP Address of the Server hosting the service, transport protocol, and port number of the service separated by a pound sign (#). For example, server1#tcp#88:server2#udp#89
Specifies the list of servicehost entries to be removed from the existing list separated by colon (:). Each entry consists of a host name or IP Address of the server hosting the service, transport protocol, and port number of the service separated by a pound sign (#).
Specifies the list of servicehost entries to be added to the existing list separated by colon (:). Each entry consists of a host name or IP Address of the server hosting the service, transport protocol, and port number of the service separated by a pound sign (#).
Specifies the list of realms that are to be associated with this service. The list contains the name of the realms separated by a colon (:). This list replaces the existing list.
Specifies the list of realms to be removed from the existing list. The list contains the name of the realms separated by a colon (:).
Specifies the list of realms to be added to the existing list. The list contains the name of the realms separated by a colon (:).
Specifies Distinguished name (DN) of the Kerberos service to be modified.
kdb5_ldap_util -D cn=admin,o=org modify_service -realm ATHENA.MIT.EDU cn=service-kdc,o=org 
Password for "cn=admin,o=org":
Changing rights for the service object. Please wait ... done
Displays the attributes of a service. Options:
Specifies Distinguished name (DN) of the Kerberos service to be viewed.
kdb5_ldap_util -D cn=admin,o=org view_service cn=service-kdc,o=org 
Password for "cn=admin,o=org":


        Service dn: cn=service-kdc,o=org


      Service type: kdc


 Service host list:


     Realm DN list: cn=ATHENA.MIT.EDU,cn=Kerberos,cn=Security
Destroys an existing service. Options:
If specified, will not prompt for user's confirmation, instead will force destruction of the service.
Specifies the complete path of the service password file from where the entry corresponding to the service_dn needs to be removed.
Specifies Distinguished name (DN) of the Kerberos service to be destroyed.
kdb5_ldap_util -D cn=admin,o=org destroy_service cn=service-kdc,o=org 
Password for "cn=admin,o=org":
This will delete the service object 'cn=service-kdc,o=org', are you sure?
(type 'yes' to confirm)? yes
** service object 'cn=service-kdc,o=org' deleted.
Lists the name of services under a given base in directory. Options:
Specifies the base DN for searching the service objects, limiting the search to a particular subtree. If this option is not provided, LDAP Server specific search base will be used. For eg, in the case of OpenLDAP, value of defaultsearchbase from slapd.conf file will be used, where as in the case of eDirectory, the default value for the base DN is Root.
kdb5_ldap_util -D cn=admin,o=org list_service 
Password for "cn=admin,o=org":
cn=service-kdc,o=org
cn=service-adm,o=org
cn=service-pwd,o=org

SEE ALSO

kadmin(8)