last night there were a few myg0t attacks (made by one person), they managed to find a way to crash servers and used the switch to spec bug to tk, griefed etc etc.
Anyway, the upshot is, infamous_cow compiled a list of all his possible ip's, so add this to your banned_ip.cfg if you don't want him raging your server; seeing as he does not have a static ip, and has more than 5 id's, this is the easiest way.
www.nocashvalue.org/kanrook/SF/banned_ip.cfg