“DNS is down and nothing is working!” is not something anyone ever wants to hear at 3am. Virtually every service on a modern network depends on DNS to function. When DNS goes down, you can't send mail ...

Even Jeff Doyle tells me that I should do a little blogging with OSPF. What’s a networker to do with that kind of backing? And a few others expressed some interest as well – in understanding LSAs ...

Well, at least one of you asked… and I did promise! Next we’ll move on to Type 5 (external) LSAs. (yeeha!) But if you didn’t yet vote for your top requests from Santa for this year, at least relative ...