Serve as a reverse proxy to protect your web services from attacks
Firewall log analyzer
Free UTM appliance: firewall, VPN, WAF and antivirus in one ISO.
Next Generation Open Source Firewall
Small Content Filtering And Web Acceleration Appliance
360-FAAR Analyze FW1 Cisco Netscreen Policy Offline Using Config/Logs
Open source voucher management / hotspot system
network control and reporting
A simple captive portal