[Unit] Description=SSH Tunnel ConditionPathExists=|/usr/bin After=network.target [Service] User=simono41 ExecStart=/usr/bin/ssh -NTC -o ServerAliveInterval=60 -o ExitOnForwardFailure=yes -o StrictHostKeyChecking=no -i /home/simono41/.ssh/id_rsa -L 12345:localhost:22 pi@mgwywbvcwmot7vir.myfritz.net # Restart every >2 seconds to avoid StartLimitInterval failure RestartSec=3 Restart=always [Install] WantedBy=multi-user.target