Colm O'Neill

I've lost access to the 4g networked #wilderland remote server (a repurposed Samsung A40, powered by solar panels) out in the West of Ireland.

The web-server and system itself is up an running, but I lost #ssh connection to it, because #tmate (terminal sharing) has stopped its services.

Preliminary research shows that #upterm https://upterm.dev/ is a fairly similar alternative, but I won't have much time to make the switch when I'm next with the system.

Anyone with experience of these Instant Terminal Sharing tools with alternatives or tips? I wasn't smart enough to manage to set up my own way of bypassing #NAT (https://wiki.termux.com/wiki/Bypassing_NAT) so I used tmate, and it had a handy termux pkg that was just ready to use.

Don't even know where to start trying to install upterm in termux!

Upterm

Instant Terminal Sharing

Upterm
Aug 1, 2025 at 8:38pmWeb
Show threadAreskulAug 1, 2025
@colm
Lost ssh access because of tmate?
Could you elaborate?
Do you not have a standalone sshd running?
Show threadColm O'NeillAug 1, 2025

@jean_dupont tmate has closed it's service in the last few weeks and I did not notice until it was too late :( https://github.com/tmate-io/tmate/issues/322

tmate was the way I connected to this device (which is only connected on 4g) remotely.

I'm certain the ssh services are still running, but the tmate domains are no longer active, so I'm sort of stuck, until I physically access the device again.

Hope that explains things a bit better?

Can't ssh into terminal. Internal error. Connection to lon1.tmate.io closed. · Issue #322 · tmate-io/tmate

We are having issues trying to ssh into our raspberry pi devices at several sites. Usually we can ssh in remotely using: ssh user/[email protected] but now we get the following: Internal error ...

GitHub
Show threadAreskulAug 1, 2025
@colm Ouch! Do you remember the device static ip, if any?!
Show threadColm O'NeillAug 2, 2025
@jean_dupont no static IP here as the networking WAN is all via consumer grade 4g sim. I just didn't even investigate if a static IP via 4G was possible 
Show threadAreskulAug 2, 2025
@colm There is a lot of chance your isp do cg-NAT, so static ipv4 might not be possible.
But if your isp gives ipv6, then you could easily ssh into your machine again.