NAME

     kadmin — Kerberos administration utility

SYNOPSIS

     kadmin [-p string | --principal=string] [-K string | --keytab=string]
            [-c file | --config-file=file] [-k file | --key-file=file] [-r realm | --realm=realm]
            [-a host | --admin-server=host] [-s port number | --server-port=port number]
            [-l | --local] [-h | --help] [-v | --version] [command]

DESCRIPTION

     The kadmin program is used to make modifications to the Kerberos database, either remotely
     via the kadmind(8) daemon, or locally (with the -l option).

     Supported options:

     -p string, --principal=string
             principal to authenticate as

     -K string, --keytab=string
             keytab for authentication principal

     -c file, --config-file=file
             location of config file

     -k file, --key-file=file
             location of master key file

     -r realm, --realm=realm
             realm to use

     -a host, --admin-server=host
             server to contact

     -s port number, --server-port=port number
             port to use

     -l, --local
             local admin mode

     If no command is given on the command line, kadmin will prompt for commands to process. Some
     of the commands that take one or more principals as argument (delete, ext_keytab, get,
     modify, and passwd) will accept a glob style wildcard, and perform the operation on all
     matching principals.

     Commands include:

     add [-r | --random-key] [--random-password] [-p string | --password=string] [--key=string]
     [--max-ticket-life=lifetime] [--max-renewable-life=lifetime] [--attributes=attributes]
     [--expiration-time=time] [--pw-expiration-time=time] [--policy=policy-name] principal...

           Adds a new principal to the database. The options not passed on the command line will
           be promped for.  The only policy supported by Heimdal servers is ‘default’.

     add_enctype [-r | --random-key] principal enctypes...

           Adds a new encryption type to the principal, only random key are supported.

     delete principal...

           Removes a principal.

     del_enctype principal enctypes...

           Removes some enctypes from a principal; this can be useful if the service belonging to
           the principal is known to not handle certain enctypes.

     ext_keytab [-k string | --keytab=string] principal...

           Creates a keytab with the keys of the specified principals.  Requires get-keys rights,
           otherwise the principal's keys are changed and saved in the keytab.

     get [-l | --long] [-s | --short] [-t | --terse] [-o string | --column-info=string]
     principal...

           Lists the matching principals, short prints the result as a table, while long format
           produces a more verbose output. Which columns to print can be selected with the -o
           option. The argument is a comma separated list of column names optionally appended
           with an equal sign (‘=’) and a column header. Which columns are printed by default
           differ slightly between short and long output.

           The default terse output format is similar to -s -o principal=, just printing the
           names of matched principals.

           Possible column names include: principal, princ_expire_time, pw_expiration,
           last_pwd_change, max_life, max_rlife, mod_time, mod_name, attributes, kvno, mkvno,
           last_success, last_failed, fail_auth_count, policy, and keytypes.

     modify [-a attributes | --attributes=attributes] [--max-ticket-life=lifetime]
     [--max-renewable-life=lifetime] [--expiration-time=time] [--pw-expiration-time=time]
     [--kvno=number] [--policy=policy-name] principal...

           Modifies certain attributes of a principal. If run without command line options, you
           will be prompted. With command line options, it will only change the ones specified.

           Only policy supported by Heimdal is ‘default’.

           Possible attributes are: new-princ, support-desmd5, pwchange-service, disallow-svr,
           requires-pw-change, requires-hw-auth, requires-pre-auth, disallow-all-tix,
           disallow-dup-skey, disallow-proxiable, disallow-renewable, disallow-tgt-based,
           disallow-forwardable, disallow-postdated

           Attributes may be negated with a "-", e.g.,

           kadmin -l modify -a -disallow-proxiable user

     passwd [--keepold] [-r | --random-key] [--random-password] [-p string | --password=string]
     [--key=string] principal...

           Changes the password of an existing principal.

     verify-password-quality principal password

           Run the password quality check function locally.  You can run this on the host that is
           configured to run the kadmind process to verify that your configuration file is
           correct.  The verification is done locally, if kadmin is run in remote mode, no rpc
           call is done to the server. NOTE: if the environment has verify-password-quality
           configured to use a back-end that stores password history (such as heimdal-history),
           running verify-quality-password will cause an update to the password database meaning
           that merely verifying the quality of the password using verify-quality-password
           invalidates the use of that principal/password in the future.

     privileges

           Lists the operations you are allowed to perform. These include add, add_enctype,
           change-password, delete, del_enctype, get, get-keys, list, and modify.

     rename from to

           Renames a principal. This is normally transparent, but since keys are salted with the
           principal name, they will have a non-standard salt, and clients which are unable to
           cope with this will fail. Kerberos 4 suffers from this.

     check [realm]

           Check database for strange configurations on important principals. If no realm is
           given, the default realm is used.

     When running in local mode, the following commands can also be used:

     dump [-d | --decrypt] [-fformat | --format=format] [dump-file]

           Writes the database in “machine readable text” form to the specified file, or standard
           out. If the database is encrypted, the dump will also have encrypted keys, unless
           --decrypt is used.  If --format=MIT is used then the dump will be in MIT format.
           Otherwise it will be in Heimdal format.

     init [--realm-max-ticket-life=string] [--realm-max-renewable-life=string] realm

           Initializes the Kerberos database with entries for a new realm. It's possible to have
           more than one realm served by one server.

     load file

           Reads a previously dumped database, and re-creates that database from scratch.

     merge file

           Similar to load but just modifies the database with the entries in the dump file.

     stash [-e enctype | --enctype=enctype] [-k keyfile | --key-file=keyfile] [--convert-file]
     [--master-key-fd=fd]

           Writes the Kerberos master key to a file used by the KDC.

SEE ALSO

     kadmind(8), kdc(8)