Welcome to OSSEC.net

OSSEC is an Open Source Host-based Intrusion Detection System. It performs log analysis, integrity checking, Windows registry monitoring, rootkit detection, real-time alerting and active response. It runs on most operating systems, including Linux, OpenBSD, FreeBSD, MacOS, Solaris and Windows. A list with all supported platforms is available here.

You can start by reading our Community FAQ, the official manual page or by just downloading OSSEC. If you need any help with the install, you can follow some step-by-step guides available here. We also have a mailing list to solve any question that you may have.

New to OSSEC? Check out our Getting started page.