Edit file File name : qos.conf Content :<IfModule qos_module> # minimum request rate (bytes/sec at request reading): #QS_SrvRequestRate 120 # limits the connections for this virtual host: #QS_SrvMaxConn 100 # allows keep-alive support till the server reaches 600 connections: #QS_SrvMaxConnClose 600 # allows max 50 connections from a single ip address: #QS_SrvMaxConnPerIP 50 </IfModule> Save