Free UTM appliance: firewall, VPN, WAF and antivirus in one ISO.
HTTP proxy to block ads and customize webpages
iptables script in only one file
Robust and flexible VPN network tunnelling
Anti Spam SMTP Gateway
OpenWRT ©VMWare ©ESXi Appliance NAT router
IPFIRE Firewall for ARM architecture (OrangePi)
Network Firewall Linux Kernel Module with Conflict Resolution Engine
High interaction honeypot solution for Linux based systems
Jateway is a general purpose TCP/IP connection proxy
IOSec Addons are enhancements for web security and crawler detection
Personal firewall for linux desktop and android phone
iptables web interface