Firewall able to analyze visitor behavior & provide adapted response
CacheGuard Gateway is a UTM, a WAF, and a QoS management appliance.
Powerfull Web Application Firewall for PHP
Open source voucher management / hotspot system
Firewall Management Script
IOSec Addons are enhancements for web security and crawler detection
ddos_deflate, el Guapo Edition is network trench defense!
Easy to use firewall for linux beginners.
Lomalarga is a VPN-like service based on SSH and Linux.