kdestroy [-A] [-q] [-c cache_name] [-p princ_name]


The kdestroy utility destroys the user’s active Kerberos authorization tickets by overwriting and deleting the credentials cache that contains them. If the credentials cache is not specified, the default credentials cache is destroyed.


Destroys all caches in the collection, if a cache collection is available. May be used with the -c option to specify the collection to be destroyed.
Run quietly. Normally kdestroy beeps if it fails to destroy the user’s tickets. The -q flag suppresses this behavior.
-c cache_name

Use cache_name as the credentials (ticket) cache name and location; if this option is not used, the default cache name and location are used.

The default credentials cache may vary between systems. If the KRB5CCNAME environment variable is set, its value is used to name the default ticket cache.

-p princ_name
If a cache collection is available, destroy the cache for princ_name instead of the primary cache. May be used with the -c option to specify the collection to be searched.


Most installations recommend that you place the kdestroy command in your .logout file, so that your tickets are destroyed automatically when you log out.


See kerberos for a description of Kerberos environment variables.


Default location of Kerberos 5 credentials cache


kinit, klist, kerberos