If you're curious about the rather iffy availability of the blog lately, there are reasons. First, upgrading the server's OS had a couple of issues. In addition to the problem with PostgreSQL I mentioned before, I found another problem a couple of days ago.
It seems that the DNS configuration files changed rather dramatically between the last version and the current version. The changes weren't actually installed, because I had already customized my DNS quite a bit. This resulted in the DNS server crashing - but not until after it had come up saying it was OK. If you reached my backup DNS, you found me. If you reached my primary DNS, you didn't. Bleh. This is fixed.
But there is another problem: Lachlan. My server is plugged into a UPS so that it will survive a power outage. (There are lots of thunderstorms in Texas.) The UPS is under Steph's desk, next to the server. The power button on the UPS has a light on it. Lachlan likes to make the light go on and off. Sometimes he leaves it off. I'll fix this over the weekend (I'm going to use cardboard and duct tape :-), but in the meantime the server will just go down from time to time.