sshuttle

It creates a transparent proxy that routes traffic from a local machine—or a router—through an SSH connection to a remote network, effectively providing VPN‑like access without requiring a dedicated VPN server. The tool works on Linux, FreeBSD, macOS and Windows, and does not need administrative privileges on the remote side. It is designed for situations where a conventional VPN is unavailable or impractical, and where setting up individual SSH port forwards would be cumbersome.

By intercepting network packets and forwarding them over SSH, it avoids the performance issues associated with OpenSSH’s port‑forwarding and PermitTunnel features. The implementation handles TCP‑over‑TCP efficiently, delivering a usable experience for most common use cases.

The program can be run from the command line or installed as a service, and it integrates with configuration‑management systems for automated deployment. Documentation for both stable and development releases is available online.