While static page serving has gone on uninterrupted, the CGI for bugzilla and manpages was timing out due to some kind of spam attack. I've tweaked the fail2ban config to catch more of the offending requests, and increased the bantime for these requests to 72 hours, up from the default of 10 minutes. Bugzilla appears to be running normally now. Considering increasing the bantime further, we'll see. Reply to this thread if you notice any other problems in the next few days.