OSSEC is an open source centralized log monitoring and notification system. OSSEC is often used to meet PCI Compliance central logging and intrusion monitoring requirements with a free and self-managed solution. OSSEC monitors all types of logs such as syslog, apache, maillogs, mysql logs, ftp logs, cisco IOS logs, and more. I’ll show you how to install OSSEC on the latest Red Hat Linux or CentOS 6!