On 9-30-2010, interworx automatically upgraded itself on several servers, and the DNS server was OFF. Anyone else experience this problem?
In the log, you can see that djbdns was updated. A simple click on the start fixed the problem, but in the mean time, a crapload of sites were down 
djbdns 1.05-109.rhe4x.iworxHi - yes, this did unfortunately happen for some servers during this update. It was actually related to a bug in the previously installed djbdns RPM - this update removed the bug, but despite our best efforts, some folks were still hit by it. It definitely won’t be a problem that repeats itself.
Paul