I use a notebook for everything, including checking email, including in public wifi spots. As a result, my email and messenger are permanently configured to send and receive email/messages through an SSH tunnel:

That thing above is part of a script I run manually about a minute after booting my machine. And I also have to run it manually every two or three hours, because the tunnel goes down after a while.

How can I automate that? I would like to have it:

- run on boot
- check if the (usually wifi) connection is already available
- create the tunnel
- postpone it if no connection is available yet
- do nothing if the tunnel already exists and is up/responsive, so it can be run on cron every 30 or 60 minutes

Honestly, I think I can only go as far as running it on boot. I need help with all the rest. :-\

Hello,

I think you need AutoSSH. I've been using it for quite some time now to keep SSH tunnels alive and it works great. It might also be available in the repositories of your distro, just check.

Kind regards,

Eric

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you could do checking of network connection like in this post #6 and below that