Reverse SSH tunnel daemon I own a Macintosh laptop (10.11.2) that I would like to create a permanent reverse SSH tunnel. 

This way, when I switch network, or the computer is stolen, I can remotely SSH into the device independent on what network it is on. 

Currently, I run this command from when I am on the laptop, but if my network gets interrupted, I have to run it again.

ssh -N -R 2000:localhost:22 root@my_server_ip


(and then run ssh -p 2000 localhost on my home server)

But if my laptop switches network, or I am not physically on it to run the command, the reverse SSH tunnel does not work.

Is there any mac command line solution for this?
There is autossh doing exactly what you need:

autossh -M 12345 -N -R 2000:localhost:22 root@my_server_ip


But you should certainly reconsider running the tunnel using root account, when it is password-less (unless you have the key limited using authorized_commands).