[449] in Zephyr_Bugs
Re: urgent
daemon@ATHENA.MIT.EDU (Tom Coppeto)
Fri Jan 29 18:07:16 1993
To: dryfoo@MIT.EDU
Cc: network@MIT.EDU, bug-zephyr@MIT.EDU
In-Reply-To: Your message of Fri, 29 Jan 93 15:57:08 -0500.
Date: Fri, 29 Jan 93 18:07:09 GMT
From: Tom Coppeto <tom@MIT.EDU>
From the stock answer:
----
The message:
unauthorized attempt to change login information from 18.xx.xx.xxx
probably means that you had invalid Kerberos tickets when your location
or login status was being updated on one of the Zephyr servers. Since
your Kerberos authentication tickets were not valid, your identity could
not be proven and thus the Zephyr server logs the attempt as
'unauthorized'.
----
Our hypothesis is (from one who has never seen a zephyr server before)
because one of the zephyr servers was hosed, the kerberos
authenticators were expiring (5 min lifetime) before whatever
transaction needed to be performed was completed, due to the time in
retransmitting the requests (this sounds like something that could be
easily fixed). We've since unhosed the zephyr server.
- Tom
