AutoSSH + GatewayPorts on a public server has been solid for me. Setup is a service file on the private machine and "GatewayPorts yes" in sshd_config of the pub

AutoSSH + GatewayPorts on a public server has been solid for me. Setup is a service file on the private machine and "GatewayPorts yes" in sshd_config of the public computer. Plus there's no keep alive traffic. Combine it with dynamic DNS, a web proxy and Lets Encrypt for access to a website running on the remote computer. from the systemd service file: Environment=AUTOSSH_GATETIME=0 ExecStart=/usr/bin/autossh -M 0 -N -q -o "ServerAliveInterval 60" -o "ServerAliveCountMax 3" -o "ExitOnForwardFailure yes" -p 3004 -l pi exampmle.org -R 3006:127.0.0.1:3006 -R 8080:127.0.0.1:8080 -i /home/pi/.ssh/id_rsa