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Old 12-19-2004, 03:29 AM   #1
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Registered: Dec 2004
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not common x display question

I have an application that in order to work requires a window to be open. The problem is I don't want the window running on my local machine while logged in to the remote machine. I want to direct the display to the machine I'm logged into. I also need to have the program running after I disconnect (using nohup), which I currently can't do because the required window is runs on my local machine. I've tried setting $DISPLAY to :0.0, but I get a connection refused / no protocol specified error. I'm logging into a Fedora core machine from xmanager in windows. It's hard searching for a solution because all that comes up is how to setup the display so you can view it on your local machine, which is exactly what I don't want.

Thanks for the help!
Old 12-19-2004, 04:43 AM   #2
Registered: Nov 2003
Location: Ronneby, Sweden
Posts: 555

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Hi kdotsky. Welcome to!

If I interpret your problem correclty, you log on from a remote host (using telnet or SSH or something like that) and then try to open a window on that machine. Is this correct? If so, this is what you need to do:

The user who logs on must
as you already tried. This is not enough, however, since the X server doesn't allow connections by default. You also need to look into the xhost command. The user who started X on the remote machine must issue a command like:
xhost +
This allows anyone to open a window on your display. Since this might be bad from a security perspective, you could arrange that only users logged on to the machine may open a window. This is done with the command
xhost +localhost

Does this answer your question? If not, I could try to clarify it for you.

Good luck!
Old 12-19-2004, 10:36 PM   #3
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Registered: Dec 2004
Posts: 21

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There are 2 solutions to your problem:

1. You must be logged in at the remote machine, with a X server running. This will allow you to open a window on the remote machine. Or alternatively, someone else can be logged in, but must have run "xhost +" or "xhost +localhost".

The key is someone must be logged in on the remote machines console and running X.

2. You can run a vncserver on the remote machine. The vncserver will run on a display other than :0 (usually :1) and you can set DISPLAY=:1 to display the window. You can then run a vncviewer (from "remote" or somewhere else) if you want to see what's happening in your window.



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