man kvno (Commandes) - print key version numbers of Kerberos principals

NAME

kvno - print key version numbers of Kerberos principals

kvno [-q] [-h] [-4 | [-c ccache] [-e etype]] service1 service2 ...

Kvno acquires a service ticket for the specified Kerberos principals and prints out the key version numbers of each.

-c ccache: specifies the name of a credentials cache to use (if not the default)
-e etype: specifies the enctype which will be requested for the session key of all the services named on the command line. This is useful in certain backward compatibility situations.
-q: suppress printing
-h: prints a usage statement and exits
-4: specifies that Kerberos version 4 tickets should be acquired and described. This option is only available if Kerberos 4 support was enabled at compilation time.

Kvno uses the following environment variable:

/tmp/krb5cc_[uid]: default location of the credentials cache ([uid] is the decimal UID of the user).
/tmp/tkt[uid]: default location of the v4 ticket file.