Ossec & Ossim Unified Open Source Security -

An open-source Host-based Intrusion Detection System (HIDS). It sits on your servers and endpoints to perform:

The "unified" approach relies on the specific strengths of each tool working in tandem: OSSEC & OSSIM Unified Open Source Security

Combining and OSSIM creates a powerful, unified open-source security architecture that bridges the gap between deep host-level monitoring and centralized security management. Together, they provide a cost-effective alternative to expensive commercial security suites for organizations needing robust intrusion detection and compliance. Core Components & Synergy An open-source Host-based Intrusion Detection System (HIDS)

Collects events from OSSEC agents and other network tools (like Snort or OpenVAS). OSSEC & OSSIM Unified Open Source Security

Detecting unauthorized changes to critical system files. Rootkit Detection: Identifying hidden malicious software.

Evaluates the severity of threats based on asset value and vulnerability data. How They Work Together