Well, I just lost an hour of my day for no good reason. First, I spent nearly six hours geting my daughter's glasses dealt with (eyes checked, old glasses retrieved from friend's house, new glasses purchased elsewhere). Sheesh - it was like waiting for Godot. Then I get home, and my Linux box can't see anything.
So of course, I panic. Is it the network card? My router? Since the Mac can see everything, it's not the router or the office hub. Then what, did the network card go? I rebooted the thing (too much time on Windows there). Finally, I slapped my forehead and looked at the DNS information my router had vs. the info the linux box had. Dohhh.
I set that box up with a static IP a long time ago, so that I could use it as an internally "well known" location. Well, I hadn't updated the DNS servers in eons - it's kind of amazing that the old ones had been on, given Comcasts many upgrades. I guess they finally went down though.
It had been so long that I had no idea which text file held that info. Fortunately, I remembered linuxconf. A minute later and I was back in business. What a lousy afternoon/evening it's been :/