OWASP Coraza WAF is a golang modsecurity compatible firewall library
Cross-platform multi-protocol VPN software
A Fast Reverse Proxy
NSmartProxy is an open source reverse proxy tool
Manage port forwardings via UPnP
CacheGuard Gateway is a UTM, a WAF, and a QoS management appliance.
Robust and flexible VPN network tunnelling
Lightweight Server Suite for LAN
A client for the MikroTik RouterOS API protocol, written in PHP.
pfck - pf check - organizes flow information by host
IOSec Addons are enhancements for web security and crawler detection
Distributed reverse / forward proxy and tunneling solution for TCP.