OWASP Coraza WAF is a golang modsecurity compatible firewall library
Manage port forwardings via UPnP
Bypass your ISP's firewalls and connect to the internet!
SSH Java client GUI for Unix, Linux administration and monitoring
Jateway is a general purpose TCP/IP connection proxy
A web interface for various penetration testing tools
Unity Network is a distributed Virtual Networking Platform
Lomalarga is a VPN-like service based on SSH and Linux.