Welcome to the OpenSentinel Setup, Installation and Usage manual. Following the instructions below will get you setup with an OpenSentinel Stack installed on a recent Ubuntu server platform. The stack (currently) includes MySQL database logging and control of Modsecurity, Fail2Ban, Tripwire and optionally, Cloudflare firewall control. This stack provides you with a way to quickly learn your network environment and fine tune these open source products to provide maximum protection and visibility to your (web) servers.