Windows

For Windows, the best (cheapest) X server is Xming.

Go to www.straightrunning.com/XmingNotes/ and select Xming under Public Releases. You may also want the Xming-fonts

Install this on your system. If you already have PuTTY installed, you should be able to accept the defaults, but make sure you the Desktop Icon and Quick Launch options for XMing are checked.

Don't worry about XLaunch.

Once installed, make sure it is running. there should be a red and black X in the task tray (lower right) of your Windows Desktop.

Now, configure PuTTY to allow X tunneling.

Run PuTTY

Enter turing.cs.niu.edu in the "Host Name (or IP address) field. If you want to use hopper, enter that instead. Or load an existing configuration from the Saved Sessions windows.

In the "Category" window, select :

Connections
  SSH
    Auth - highlight the actual name.
      On the right hand side of the "Putty Configuration" windows
        Authentication parameters
         [x] Allow agent forwarding <- click this on.

    Xll - now click this.  
      On the right hand side of the "Putty Configuration" windows
      X11 forwarding
      On the right hand side of the "Putty Configuration" windows
      [x] Enable X11 forwardng <- click this on. 

Now scroll all the way back up to the top in the "Category" windows and select "Session".

Make sure the "Saved Session" edit box has a labelfor the Host Name you are configuring.

Click [Save] on the right.

You should now be able to open this session, log into turing or hopper, and run any graphical applications we've installed.

Apple no long provides a native X-server, but one may be found at www.xquartz.org. Download and install. You will have to have an admin Id on your system.

Once installed, you will have to log out and back in to activate the X-Server.

The OSX shell terminal program can be found under Applications/Utilities. You may want to 'Dock' this for convience.

To use :

Run the terminal application.

Invoke ssh with the -X option, your Linux acocunt ID, and name of the graphical application you want to use. Example :

ssh -X z912730@turing.cs.niu.edu geany

You should receive a turing/hopper login prompt.

Log in.

If successful, a 'Window' will appear on your OSX desktop with geany running.

You may get an initial error about a missing .Xauthority file. It should go away once OSX has generated the needed file.

For more help, google "X tunneling on Mac"