we are facing DDOS attack on VPS. And datacenter can not help in it. It's on port80.
Mod_evasive is installed but its not enough.
i tried script
http://bash.cyberciti.biz/security/v...cript.bash.php

When I start this script it blocks all the ports and services. I have made all the changes for IP in script but it's not working.
How can I make this script work on VPS and block IP's through it.

Operating system is CentOS 4.3
Please suggest.
Thanks.