I just got a phone call from a user that D21C.COM and DOMANIA.US were down.
Here's a graph of today's traffic on the server:

This graph is looking at the server from the viewpoint of the switch. Green is traffic from the server to users. Blue is traffic going to the server from users.
As you can see, there is a lot of inbound traffic starting at about 4PM central time, continuing until about 9PM, when the server stopped communicating.
Our brute-force-detection system blocked 91.164.139.177 at 9:14:38 PM after 58 attempts to access the server illegally. This IP is located in Fourmies, Nord-Pas-De-Calais, France, and probably is a proxy server. I don't know yet if this user was responsible for the server going down, or just happened to be doing something illegal when the server went down.
The data center is currently rebooting the server. With any luck, we'll be back up and running in fifteen minutes, but as I don't know for sure why the server went down, I can't say for sure.





The data center informs me
The data center informs me that it's going to take more than a simple reboot.
At this point, I'm going to guess that it may be noon before everything is working again - but that's just a guess. I should have a better idea in a few hours, and I'll keep you updated.
Life is a beta...