Connect your devices into a secure WireGuard-based overlay network
GO Simple Tunnel, a simple tunnel written in golang
Overlay networks based on WebRTC.
glider is a forward proxy with multiple protocols support
Manage port forwardings via UPnP
A self-hosted solution to enable secure connectivity between devices
A TCP/UDP packet forwarding tool for IPv6 and IPv4
Java SSH API
Port forwarding between TCP and UDP
Vulnerable VM featuring Bitbot
Lomalarga is a VPN-like service based on SSH and Linux.
HardWall Firewall for Linux 2.4/2.6