So while in Chicago my ISP decided to shuffle IP addresses - the first time in 6 months - meaning my domain was no longer accessible.
I was going to get my wonderful wife to reconfigure the router so all would be fine and dandy, but alas, something else appears to be wrong on the other side of the router.
Boy do I wish I had enabled sshd port forwarding. At least it's only another week and a half before I return to Adelaide and I can rectify things myself.
Whew.