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I have a setup where I need to forward X11 from my local machine (laptop) to a Virtual machine. The server hosting this VM cannot be reached directly from my laptop. I need to first login to a gateway and from this gateway, I can access the VM. How can I forward X11 from my laptop to this VM? I have tried following but these do not work:

  1. [laptop # ] ssh -X [gateway]

    [gateway # ] ssh -X [VM]

  2. [laptop # ] ssh -tX [gateway] ssh -X [VM]

I could forward X11 only till the gateway. (DISPLAY variable gets set on gateway)

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migrated from stackoverflow.com Jan 16 '11 at 5:38

This question came from our site for professional and enthusiast programmers.

What you need to do is to use port forwarding so that you can ssh to the remote machine via port forwarding and then do ssh -X.

ssh -L 2222:[VM]:22 [gateway]
ssh -p 2222 -X localhost

or

ssh -R 2222:[VM]:22 [gateway]
ssh -p 2222 -X [gateway]
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