Friday, October 3, 2008

Using Xwindow client-server

Before starting, make sure both client and server (remote machine) have port 6000 open for Xserver (on SuSE, file /etc/sysconfig/displaymanager should contain DISPLAYMANAGER_XSERVER_TCP_PORT_6000_OPEN="yes"). Once you have changed it, restart Xwindow (or refresh it by pressing CTL-SHFT-BKSPACE).

  1. From local shell, type "xhost +". This will allow this client to connect to all hosts
  2. ssh to remote machine as: "ssh -Y -o ForwardX11Trusted=yes ". If after following steps it does not work, try "ssh -X -o ForwardX11=yes " (although this is less secure)
  3. Once we're in remote machine, type "xhost +" as well.
  4. if we just want to redirect a single X application, we can pass -display directly to the application. For example, to bring remote xterm window to our local screen, just type "xterm -display address:0", e.g.: xterm -display
  5. If we want to redirect all new X applications to our local screen, modify environment variable DISPLAY. For example: export DISPLAY= and then type any GUI applications.

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