Kerberos configuration utility
kdb5_ldap_util [-D user_dn [-w passwd]] [-H ldapuri] command [command_options]
kdb5_ldap_util allows an administrator to manage realms, Kerberos services and ticket policies.
-D user_dn
Specifies the Distinguished Name (DN) of the user who has sufficient rights to perform the operation on the LDAP server.
-w passwd
Specifies the password of user_dn. This option is not recommended.
-H ldapuri
Specifies the URI of the LDAP server. It is recommended to use ldapi:// or ldaps:// to connect to the LDAP server.
create [-subtrees subtree_dn_list] [-sscope search_scope] [-containerref container_reference_dn] [-k mkeytype] [-kv mkeyVNO] [-m|-P password|-sf stashfilename] [-s] [-r realm] [-maxtktlife max_ticket_life] [-maxrenewlife max_renewable_ticket_life] [ticket_flags]
Creates realm in directory. Options:
-subtrees subtree_dn_list
Specifies the list of subtrees containing the principals of a realm. The list contains the DNs of the subtree objects separated by colon (:).
-sscope search_scope
Specifies the scope for searching the principals under the subtree. The possible values are 1 or one (one level), 2 or sub (subtrees).
-containerref container_reference_dn
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.
-k mkeytype
Specifies the key type of the master key in the database. The default is given by the master_key_type variable in kdc.conf(5).
-kv mkeyVNO
Specifies the version number of the master key in the database; the default is 1. Note that 0 is not allowed.
-m
Specifies that the master database password should be read from the TTY rather than fetched from a file on the disk.
-P password
Specifies the master database password. This option is not recommended.
-r realm
Specifies the Kerberos realm of the database.
-sf stashfilename
Specifies the stash file of the master database password.
-s
Specifies that the stash file is to be created.
-maxtktlife max_ticket_life
(getdate string) Specifies maximum ticket life for principals in this realm.
-maxrenewlife max_renewable_ticket_life
(getdate string) Specifies maximum renewable life of tickets for principals in this realm.
ticket_flags
Specifies global ticket flags for the realm. Allowable flags are documented in the description of the add_principal command in kadmin(1).
Example:
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:
modify [-subtrees subtree_dn_list] [-sscope search_scope] [-containerref container_reference_dn] [-r realm] [-maxtktlife max_ticket_life] [-maxrenewlife max_renewable_ticket_life] [ticket_flags]
Modifies the attributes of a realm. Options:
-subtrees subtree_dn_list
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.
-sscope search_scope
Specifies the scope for searching the principals under the subtrees. The possible values are 1 or one (one level), 2 or sub (subtrees).
-containerref container_reference_dn Specifies the DN of the
container object in which the principals of a realm will be created.
-r realm
Specifies the Kerberos realm of the database.
-maxtktlife max_ticket_life
(getdate string) Specifies maximum ticket life for principals in this realm.
-maxrenewlife max_renewable_ticket_life
(getdate string) Specifies maximum renewable life of tickets for principals in this realm.
ticket_flags
Specifies global ticket flags for the realm. Allowable flags are documented in the description of the add_principal command in kadmin(1).
Example:
shell% 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":
shell%
view [-r realm]
Displays the attributes of a realm. Options:
-r realm
Specifies the Kerberos realm of the database.
Example:
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
destroy [-f] [-r realm]
Destroys an existing realm. Options:
-f
If specified, will not prompt the user for confirmation.
-r realm
Specifies the Kerberos realm of the database.
Example:
shell% 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'...
shell%
list
Lists the name of realms.
Example:
shell% 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
shell%
stashsrvpw [-f filename] servicedn
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:
-f filename
Specifies the complete path of the service password file. By default, /usr/local/var/service_passwd is used.
servicedn
Specifies Distinguished Name (DN) of the service object whose password is to be stored in file.
Example:
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":
create_policy [-r realm] [-maxtktlife max_ticket_life] [-maxrenewlife max_renewable_ticket_life] [ticket_flags] policy_name
Creates a ticket policy in the directory. Options:
-r realm
Specifies the Kerberos realm of the database.
-maxtktlife max_ticket_life
(getdate string) Specifies maximum ticket life for principals.
-maxrenewlife max_renewable_ticket_life
(getdate string) Specifies maximum renewable life of tickets for principals.
ticket_flags
Specifies the ticket flags. If this option is not specified, by default, no restriction will be set by the policy. Allowable flags are documented in the description of the add_principal command in kadmin(1).
policy_name
Specifies the name of the ticket policy.
Example:
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":
modify_policy [-r realm] [-maxtktlife max_ticket_life] [-maxrenewlife max_renewable_ticket_life] [ticket_flags] policy_name
Modifies the attributes of a ticket policy. Options are same as for create_policy.
Example:
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":
view_policy [-r realm] policy_name
Displays the attributes of a ticket policy. Options:
policy_name
Specifies the name of the ticket policy.
Example:
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
destroy_policy [-r realm] [-force] policy_name
Destroys an existing ticket policy. Options:
-r realm
Specifies the Kerberos realm of the database.
-force
Forces the deletion of the policy object. If not specified, the user will be prompted for confirmation before deleting the policy.
policy_name
Specifies the name of the ticket policy.
Example:
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.
list_policy [-r realm]
Lists the ticket policies in realm if specified or in the default realm. Options:
-r realm
Specifies the Kerberos realm of the database.
Example:
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
MIT
1985-2013, MIT