AFS and kerberos

[Faeandar]

Is it possible for a Solaris or Linux host to run both Kerb4 and
Kerb5?  For different applications and auth domains.

Though this may seem like an idiotic question (why would you want
to?!) it is actually a valid config in our environment.  Or at least
could be if it were possible.  So far, no one we've asked has been
able to answer this question so I thought I'd pose it here.

Thanks.

~F