DECS primarily recommends using X2Go for connections to our compute servers. In some cases it may be helpful to know how to make the connection via terminal or putty and X11 server software. If you have an issue with X2Go, see below for more options.
X forwarding allows a user to run UNIX and Linux graphical applications remotely. In order to do this, you need a SSH client that supports X forwarding, such as PuTTY, click here to learn more about SSH and PuTTY.
How to Set Up the X server
In order for a GUI to be displayed on your client machine you'll need an X11 Server VcXsrv (installed with a normal DECS software installation) or XMing running. Launch one of these programs before you make your ssh connection.
- Open PuTTY and enter the name of a DECS compute server for the host name.
- Choose Tunnels, which is located under Connection and then SSH on the left hand side. Then click the Enable X11 forwarding checkbox.
- To save these settings, go back to the original screen by clicking on the Session item on the left. Under Saved Sessions type in a name and then click Save. These settings are now saved, and can be reused the next time you use PuTTY by choosing the name you saved it under and clicking Load after opening PuTTY.
- When you are ready to connect, click on the Open button.
IMPORTANT: Do NOT run long jobs or cpu-heavy jobs on scully. If you have a long running or cpu-intensive job, use a compute server.