Hi there,

I'm experiencing a significant UDP DDoS at the moment which is aimed at port 80 on my server, it's currently crippling Apache, but only on port 80, https (443) is fine. I've told iptables it drop UDP packets sent to port 80 and have also completely blocked most of the attacking IPs, this has helped, but the webserver is still periodically unresponsive.

Does anybody have any suggestions?

Thanks in advance.