Source

autotunnel / autotunnel.service

[Unit]
Description=Auto tunneling daemon
After=network.target
Wants=network.target

[Service]
Type=simple
Restart=restart-always
ExecStart=/usr/local/bin/autotunnel /etc/autotunnel/default.conf
ExecStop=/usr/local/bin/autotunnel -k /etc/autotunnel/default.conf

[Install]
WantedBy=multi-user.target