Denial of Service evasion module for Apache
mod_evasive is an evasive maneuvers module for Apache to provide
evasive action in the event of an HTTP DoS or DDoS attack or brute
force attack. It is also designed to be a detection and network
management tool, and can be easily configured to talk to ipchains,
firewalls, routers, and etcetera. mod_evasive presently reports
abuses via email and syslog facilities.