intrusion detection

Wazi: Snort, the open source intrusion detection and prevention system (IDS/IPS), can be a fabulous tool to protect your network from attack – if it's set up correctly.

Linux.com: "Front-line measures like firewalling, strong authentication, and staying on top of security updates are mandatory steps to keeping your system secure.

But you also need to check your system's health frequently and make sure a compromise didn't slip past you unnoticed."

Suricata: The OISF development team is proud to announce Suricata 1.0.0, the first stable release of Suricata, the Open Source Intrusion Detection and Prevention engine.

LinuxPlanet: "Packet Fence bundles many useful and powerful network protection tools into an attractive, integrated package.

Such as network access control, monitoring, intrusion detection, VLAN isolation, DHCP fingerprinting, and captive portal.

Eric Geier introduces us to this protective powerhouse."

Howtoforge: "AIDE (Advanced Intrusion Detection Enviornment) is a tool to check the file integrity. It is an opensource substitute for TRIPWIRE."