Systemd service for autossh

autossh.service

[Unit]
Description=Keeps a tunnel to 'remote.example.com' open
After=network-online.target

[Service]
User=tunel
#ISTALLL 
# sudo mv autossh.service /etc/systemd/system/
# sudo systemctl enable autossh.service
# sudo apt install autossh
# sudo adduser --home /var/lib/tunel  tunel
# sudo scp  /var/lib/tunel/.ssh/id_rsa.pub [email protected]:/tmp/
# ssh [email protected] -p 6969  'cat /tmp/id_rsa.pub >> /home/tunel/.ssh/authorized_keys'
# sudo su - tunel 
# ssh -p 6969 [email protected]  ls
# exit 
# sudo systemctl start autossh.service 

Environment=HOSTTUNEL=74.208.65.34
Environment=USERTUNEL=tunel
Environment=PORTSERVER=6969
Environment=REMOTE_PORT=2290
Environment=LOCAL_PORT=22

# -p [PORT]
# -lN Just open the connection and do nothing (not interactive)
# LOCALPORT:IP_ON_EXAMPLE_COM:PORT_ON_EXAMPLE_COM


ExecStart=/usr/bin/autossh -M 0 -N -q -o "ServerAliveInterval 60" -o "ServerAliveCountMax 3" -p ${PORTSERVER}  ${USERTUNEL}@${HOSTTUNEL} -R 0.0.0.0:${REMOTE_PORT}:localhost:${LOCAL_PORT} -i /var/lib/tunel/.ssh/id_rsa


[Install]
WantedBy=multi-user.targetsudo sudo systemctl enable autossh.service