Open Source System Management

GParted - An Open Source System Management and free partition editor for graphically managing your disk partitions

With GParted you can resize, copy, and move partitions without data loss, enabling you to:

Snort_inline - Open Source Intrusion Detection

This modified version of Snort uses iptables instead of libpcap. Operating System: FreeBSD, Linux.

AFICK- Open Source Intrusion Detection

Short for "Another File Integrity Checker," AFICK monitors changes to your file systems in order to alert you to possible intrusion. If you're familiar with Tripwire, AFICK will look and feel very familiar. Operating System: Windows, Linux, Unix.

Snort - Open Source Intrusion Detection

As the most widely deployed intrusion prevention technology in the world, Snort has earned the right to call itself "the de facto standard for intrusion prevention/detection." It performs real-time analysis to detect buffer overflows, stealth port scans, CGI attacks, SMB probes, OS fingerprinting attempts, and other attacks. Operating System: Linux, Unix, BSD, Mac OS X.