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The problem is I want to use the remote desktop to access to an Ubuntu 14.04 (A) from another Ubuntu 14.04 (B). A and B are not in the same network.

The machine A is behind a router and has a private IP address as 192.168.X.X. The router cannot be controlled, so the forwarding option does not work. But, I have a public IP address which can be accessed from outside.

Can anyone offer a solution on how to configure the network? Thanks!

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  • can you enable dmz
    – mchid
    Jun 12, 2015 at 3:47

1 Answer 1

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Since the router or firewall cannot be accessed to set up port forwarding to that host, the best recommendation I can give you is to set up a Reverse Tunnel to the host behind the firewall/router.

Information about setting up one can be found in the following link:

http://www.thegeekstuff.com/2013/11/reverse-ssh-tunnel/

I have not used the next one, but I have seen it recommended around. It is TeamViewer.

https://www.teamviewer.com/en/index.aspx

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