>UT's DNS is ultimately supplied by Network Solutions (NSI). NSI has been under DDoS attack for some time; its DNS servers are effectively down so this site's name isn't resolving.

It resolves for most of the routes. I am aware that NS is expecting to do a maintenance procedure tomorrow, probably related to that. This has caused me problems since yesterday. Since the last hour, most of the DNS entries are being resolved again. The rest should come up shortly I guess.