default kerberos instance

[Devin Bougie]

Hi, All.  How can one specify the default kerberos instance that is  
used to authenticate users?  We have basic kerberos5 authentication  
working, but we would like Cyrus to authenticate users using an  
alternate instance.  For example, if a user logs in as dab66, we want  
Cyrus to authenticate them using the dab66/instance kerberos instance  
instead of just dab66.

Any suggestions would be greatly appreciated.
Sincerely,
Devin

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Devin Bougie
Laboratory for Elementary-Particle Physics
Cornell University