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<H2>NAME</H2><PRE>
kdestroy - destroy Kerberos tickets
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<H2>SYNOPSIS</H2><PRE>
<B>kdestroy</B> [<B>-5</B>] [<B>-4</B>] [<B>-q</B>] [<B>-c</B> <I>cache</I>_<I>name</I>]
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<H2>DESCRIPTION</H2><PRE>
The <I>kdestroy</I> utility destroys the user's active Kerberos
authorization tickets by writing zeros to the specified
credentials cache that contains 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.
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<H2>OPTIONS</H2><PRE>
-<B>5</B> destroy Kerberos 5 credentials. This overrides what-
ever the default built-in behavior may be. This option
may be used with -<B>4</B>
-<B>4</B> destroy Kerberos 4 credentials. This overrides what-
ever 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 -<B>5</B>
-<B>q</B> Run quietly. Normally <B>kdestroy</B> beeps if it fails to
destroy the user's tickets. The -<B>q</B> flag suppresses
this behavior.
<B>-c</B> <I>cache</I>_<I>name</I>
use <I>cache</I>_<I>name</I> 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.
Most installations recommend that you place the <I>kdestroy</I>
command in your .<I>logout</I> file, so that your tickets are des-
troyed automatically when you log out.
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<H2>ENVIRONMENT</H2><PRE>
<B>Kdestroy</B> uses the following environment variables:
KRB5CCNAME Location of the Kerberos 5 credentials
(ticket) cache.
KRBTKFILE Filename of the Kerberos 4 credentials
(ticket) cache.
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<H2>FILES</H2><PRE>
/tmp/krb5cc_[uid] default location of Kerberos 5 creden-
tials 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).
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<H2>SEE ALSO</H2><PRE>
<B>kinit(1)</B>, <B>klist(1)</B>, <B>krb5(3)</B>
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<H2>BUGS</H2><PRE>
Only the tickets in the specified credentials cache are des-
troyed. Separate ticket caches are used to hold root
instance and password changing tickets. These should prob-
ably be destroyed too, or all of a user's tickets kept in a
single credentials cache.
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