:: What is mod_evasive
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. – zdziarski
:: How to install mod_evasive on cPanel / WHM
+ download and install

+ configure

i used csf to blocked, you can use apf or other tools to blocked.

+ restarting httpd

or you can use whm to restarting httpd.

:: Links
+ Google
+ Bloke