>[aleahy@huygens ~]$ aklog -d >Authenticating to cell knox.edu (server gregory.lab.knet.edu). aklog uses Kerberos 5 API call to determine the Kerberos realm of the AFS cell. So for some reason, your Kerberos 5 configuration on that box thinks that the machine "gregory.lab.knet.edu" is in the realm LAB.KNET.EDU. Maybe a missing entry in your krb5.conf domain_realm stanza? --Ken