Connecting via SSH

SSH

This connection method leaves you with a terminal window accepting only keyboard input in a command line interface. If you are comfortable in a command-line interface, this is the simplest way to use the cluster.

From a Linux or Mac, you can simply run this from a terminal window:

ssh <KU username>@front1.ittc.ku.edu

Note

Use your KU username and password to login to the cluster

In Windows, you can either use Putty or enter the command above into Windows Terminal.

The example above uses front1, but we'd recommend users to use front2 as well to balance out usage.

You'll be left with a shell on the front-end node. Do not run your computationally-expensive tasks directly on these nodes, since they are shared with all of the cluster users. Instead, create an allocation on a compute node with srun or sbatch, both detailed in the Slurm section.

Available front-end node hostnames

front1.ittc.ku.edu
front2.ittc.ku.edu

Campus

If you are connecting from any of the University of Kansas campuses, you may connect to either host directly.

Off-Campus

If you wish to connect to the I2S Cluster from off campus, you must connect to KU Anywhere (VPN) before attempting to connect to the cluster. More information is available at KU Anywhere

Submitting jobs from front nodes

Visit Slurm to learn how to submit a job from a front node using srun or sbatch.