X
From Storrs HPC Wiki
Running X11 GUI Apps
It is possible to run X11 GUI apps on the Hornet cluster. In general, this is not recommended and submitting batch jobs is strongly preferable. However, sometimes X11 is necessary and there are various ways to do this.
Connecting
Connecting Using NX
The login node is running and NX server, so you it is possible to connect with and NX client.