CMU clock drifting

[Predrag Punosevac]

Dear Autonians,

I have being trying to figure out what was wrong with AFS and Kerbersos
on Jeff's computer for over a week now. What I found out is such a subtle
problem that I would like to share with you as it is affecting everyone
on campus.

Namely the clock on Jeff's desktop was drifting so Kerberos server would
not give him a ticket. I wouldn't expect that to happen as I am running
ntpd daemon as I do on all our servers and virtual machines. Well I
learned hard way that Carnegie Mellon University is blocking clock
synchronization on their firewalls expecting people to run isc-dhcp
clients which can alter clock synchronization pool. I have the list of
their ntpd servers now and I will create Auton Lab ntpd server which pool
their machines and pass correct time to our machines.

So the moral of the story is something behaves very strange please check the
clock first. 

Best,
Predrag