OSSEC is a scalable, multi-platform, open source Host-based Intrusion Detection
System (HIDS). It has a powerful correlation and analysis engine, integrating
log analysis, file integrity checking, Windows registry monitoring, centralized
policy enforcement, rootkit detection, real-time alerting and active response.

This package adds the configuration overlay with samples, additional rules,
commands, scripts and support for multiple configuration files.

WWW: https://ossec.github.io