RESOLVED
Website is operational again.
Our FreeBSD server suddenly rebooted itself and we didn't have notes on exactly what to do in that case*. Unfortunately for you all, I was the only HN sysadmin around—there exist other, much better ones—and it took me a while to figure out the right sequence. Then a helpful colleague asked a good question that triggered the right memory in my brain, and poof we were back up.
Posted 2 years ago.
INVESTIGATING
Website cannot be reached by our automated monitoring.
Posted 2 years ago.
Component impacted: Website (unauthed)