I setup an RPI in a field at my dad’s w/ 900MHz internet bridge and wanted 24/7 remote access but didn’t want to pay for and configure VPN. At first I opened a router port but the RPI showed access attempts every few minutes, which was troubling. Learned enough about ssh tunneling to setup a systemd service to auto-attach the RPI to an AWS instance. (Also have an RPI on the bench attached as well.)

I always laugh when I ssh into AWS, then into the RPI (over the internet and then a 900MHz bridge). Then sometimes I ssh or ftp into a data logger running in the field. Good times and has worked relatively flawlessly for a few months. (I don’t have any uptime metrics for the network connection but no noticeable problems.)

I’m planning a few more which would be much more remote. Any other suggestions for managing such a setup? Some sites may have cellular connections and so I’m not sure I want 24/7 ssh tunnel (though I don’t think it uses too much data).

Edit: I see others recommending WireGuard for similar situation. Never heard of it will check out.