Somebody stepped on the power cord.   No, I'm not joking.   :'/
Unfortunately, since the machine is in a very secure environment, and
since both of the people at Vixie Enterprises who have access to that
environment are in Albuquerque at NANOG right now, it took a bit
longer to get into the machine room than it should have.   We will be
fixing that.   We will also be fixing the arrangement of power cord so
that people can't randomly step on it.

Meanwhile, the machine is back up now.   I hope you will all accept
Vixie Enterprises' humble apologies for the interruption in service.
Sigh.

			       _MelloN_