Requirements
- Have working terminal set up.
X-11 is a protocol for rendering graphical user interfaces (GUIs) that can be sent along an SSH tunnel. If you plan on using a GUI on a NeSI cluster you will need to have an X-Server and X-Forwarding set up.
X-Servers
You must have a X-server running on your local machine in order for a GUI to be rendered.
Download links for X-servers can be found below.
| MacOS | Xquartz |
| Linux | Xorg |
| Windows | Xming |
Make sure you have launched the server and it is running in the background, look for this 
symbol in your taskbar
Note
MobaXterm has a build in X server, no setup required. By default the server is started alongside MobaXterm. You can check it's status in the top left hand corner (
=on,
=off).
X-Forwarding
Finally your ssh tunnel must be set up to 'forward' along X-11 connections.
OpenSSH (terminal)
Make sure the -Y or -X flag is included
ssh -Y user@lander.nesi.org.nzssh -Y login.nesi.org.nzMobaXterm
Under 'session settings' for your connection make sure the X-11 forwarding box is checked.
