Getting Started

This document will help you get started with requesting a user account as well as accessing any of the supported RSS clusters. Please follow all of the instructions to help expedite the account request process.

Get an Account

  • Use RSS Resource Allocation Request for requesting Hellbender accounts and RDE Storage Allocations.
  • Hellbender logins use your University SSO credentials. You can login with your password within the campus network, or using the campus VPN. You can add your SSH Public key to your Hellbender account's authorized_keys file and access Hellbender that way from outside the campus network.
  • To login to Hellbender
    • ssh
    • e.g. ssh
  • Hellbender RDE Storage Allocations are mounted using autofs, and will automatially mount when accessed.

Logging into Lewis

Please note - Lewis accounts will only be created on an as-needed basis

To log into Lewis, type the following in a local terminal:

ssh <username>

The first time you log in you will see a message like this:

[<username>.<your_computer_name_here>] ➤ ssh <username>
Warning: Permanently added '' (ECDSA)
to the list of known hosts.
Enter passphrase for key '/home/mobaxterm/.ssh/id_rsa':
Last login: Fri Aug 19 13:08:52 2016 from
* ********************************************************************
* Welcome to lewis4-r710-login-node223.cobalt.lan, CentOS, 7.6.1810
* Archive of news is available in /etc/motd-archive
* University of Missouri Division of IT Research Computing Support Services
   <message of the day will appear here>

[<username>@lewis4-r710-login-node223 ~]$

That warning is telling you that you are logging into a computer you have never seen before - it is expected on your first login. The passphrase is the one created in step 2, during the generation of your ssh keys. If you have forgotten this passphrase, you will need to repeat step 2, and provide our team with your new key so that we can update them.

Logging into Clark

To log in Clark cluster, you only need a UM username and password. Open your favorite terminal app, for our Windows users we recommend MobaXterm, and type:

ssh <username> 

Transfer Your Data to the Cluster

There are multiple ways to transfer your data to the cluster. On Windows drag and drop files into your MobaXterm window. For Linux and Mac OS use the rsync or scp commands to copy data to the cluster.

Transfers to/from the cluster that include large files (gigabyte or larger) and/or many files (hundreds or more) will need to use one of Data Transfer Nodes (DTN). Review Data Transfer to learn more.

Next Steps