[87] in Zephyr Mailing List
Re: zwgc: uninformative error message
daemon@ATHENA.MIT.EDU (raeburn@cygnus.com)
Fri Apr 16 17:28:24 1993
From: raeburn@cygnus.com
Date: Fri, 16 Apr 93 17:26:10 EDT
To: haynes@cats.UCSC.EDU
Cc: zephyr@MIT.EDU
In-Reply-To: <9304162053.AA07862@hobbes.ucsc.edu> (haynes@cats.UCSC.EDU)
From: haynes@cats.UCSC.EDU (Jim Haynes)
Date: Fri, 16 Apr 93 13:53:21 -0700
On a partly Athena-ized time sharing machine a user complains about getting
the error message
Error while subscribing: Kerberos principal unknown
I've found this is a result of running zwgc -ttymode on the machine
in question; but I'm not sure where to begin looking for what the principal
is that is unknown or why it's unknown.
Try setting krb_debug or krb_ap_req_debug (I think those are the right
names...) to 1 with a debugger. That'll cause the Kerberos library to
print out info about what it's doing. I don't think Zephyr has
anything similar. I also doubt the Zephyr library interface passes
enough information around to make a more useful error message.
Does this message occur also without `-ttymode'? If so, my first
guess would be that the machine's configuration is causing it to come
up with the wrong name (probably wrong realm?) for the Zephyr service.
