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Editorial Team
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Asked: 2026-05-30T21:03:31+00:00

I have ssh-ed to a remote machine. I have enabled X11 forwarding (ssh -X)

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I have ssh-ed to a remote machine. I have enabled X11 forwarding (ssh -X) and I have started a GUI program.

The program takes 5 minutes to set up to do some processing but the actual processing takes 1-2 hours. I don’t want to stream data while the program is working. I don’t even want to see the program again as it produces files as output when it finishes and I can just scp them.

So how can I quit the ssh session but leave the program running on the machine? CRTL+C in the terminal?

EDIT: For the answer please see my comment just below.

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1 Answer

  1. Editorial Team

    Long story short – you can’t do this without making some modifications to the way you run things. A GUI application requires for an X server target to be accepting it’s GUI updates – if you’re using your local X server to do this, then it’ll require (1) the connection to be open (2) that you actually handle the updates.

    A way around this is to use something like Xvfb – which is a headless way of hosting a virtual X-server. Above and beyond the examples provided on the wikipedia page, folks who seem to make frequent use of this mechanism are Selenium users.

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