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Ubuntu 20.04 connected to the internet through wifi with a static IP address 192.168.1.133

Is there a way to set up something so that I can ssh to it remotely? I do not have access to the router

I set up a reverse tunnel to an http server like this

$ sudo ssh -R 8001:127.0.0.1:3000 -N -f [email protected]

This works From the remote host, I can connect to the local host with elinks.

SUCCESS

ssh --R 2022:127.0.0.1:2222 -N -f [email protected] -i .ssh/djangoserver

From the remote machine:

ssh -p 2022 d0325mgray@localhost

Successfully connects me to my local machine.

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    You'll probably really need that access to the router for port forwarding... I'm not aware of any other easy way to get WAN traffic through to a specific LAN device.
    – MiG
    Jan 7, 2022 at 22:47
  • The router belongs to a hotel. I know how to set up port forwarding on a router.
    – Dennis Gray
    Jan 8, 2022 at 0:45
  • Why is it relevant if I cannot access the router?
    – Dennis Gray
    Jan 8, 2022 at 6:34
  • First of all, drop the sudo. It is unnecessary and a security risk to run ssh with root privilege for that.
    – Tilman Schmidt
    Jan 9, 2022 at 14:52
  • Then remove the extra space after 5522: in your second command. If it still doesn't work, check whether port 5522 is already in use on remote.host.
    – Tilman Schmidt
    Jan 9, 2022 at 14:58

2 Answers 2

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192.168.1.133 is a private IP address and not directly reachable from the Internet. You'll need a public IP address and a mechanism to forward ssh connections from there to your Ubuntu system.

The easiest way would be to use the public IP address of your Internet router. But if you don't have access to that router to set up port forwarding there, that avenue is barred.

Another possibility is to set up a gateway server with a public IP address somewhere on the internet and create a connection from your Ubuntu system to that gateway server through which the ssh connection can then be tunneled. Candidates for such a connection are the various VPN technologies such as OpenVPN or Wireguard, but also a ssh connection with the remote port forwarding option (-R).

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  • See my updated post about port forwarding
    – Dennis Gray
    Jan 8, 2022 at 20:11
  • I executed this with the debug option but got nothing more than the error message
    – Dennis Gray
    Jan 9, 2022 at 4:37
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Using this command on the local machine

ssh -R 2022:127.0.0.1:2222 -N -f [email protected] -i .ssh/djangoserver

successfully set up remote forwarding.

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