/usr/lib/autossh/autossh -M 10982 -N -o PubkeyAuthentication=yes -o PasswordAuthentication=no -R 2222:localhost:22 server_ip
/usr/lib/autossh/autossh -M 10982 -N -o PubkeyAuthentication=yes -o PasswordAuthentication=no -R 2222:localhost:22 server_ip