kdestroy man page on aLinux

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KDESTROY(1)							   KDESTROY(1)

NAME
       kdestroy - destroy Kerberos tickets

SYNOPSIS
       kdestroy [-5] [-4] [-q] [-c cache_name]

DESCRIPTION
       The  kdestroy utility destroys the user's active Kerberos authorization
       tickets by writing zeros to the specified credentials cache  that  con‐
       tains  them.   If  the  credentials cache is not specified, the default
       credentials cache is destroyed.	If kdestroy was built with Kerberos  4
       support,	 the  default  behavior is to destroy both Kerberos 5 and Ker‐
       beros 4 credentials.  Otherwise, kdestroy will  default	to  destroying
       only Kerberos 5 credentials.

OPTIONS
       -5     destroy  Kerberos	 5  credentials.   This overrides whatever the
	      default built-in behavior may be.	 This option may be used  with
	      -4

       -4     destroy  Kerberos	 4  credentials.   This overrides whatever the
	      default built-in behavior may be.	 This option is only available
	      if  kinit	 was built with Kerberos 4 compatibility.  This option
	      may be used with -5

       -q     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 loca‐
	      tion; 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.

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

ENVIRONMENT
       Kdestroy uses the following environment variables:

       KRB5CCNAME      Location of the Kerberos 5 credentials (ticket) cache.

       KRBTKFILE      Filename of the Kerberos 4 credentials (ticket) cache.

FILES
       /tmp/krb5cc_[uid]  default  location  of	 Kerberos  5 credentials cache
			  ([uid] is the decimal UID of the user).

       /tmp/tkt[uid]  default location of Kerberos 4 credentials cache	([uid]
		      is the decimal UID of the user).

SEE ALSO
       kinit(1), klist(1), krb5(3)

BUGS
       Only  the  tickets  in  the  specified credentials cache are destroyed.
       Separate ticket caches are used to  hold	 root  instance	 and  password
       changing	 tickets.  These should probably be destroyed too, or all of a
       user's tickets kept in a single credentials cache.

								   KDESTROY(1)
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