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Login to the Rackham console environment using SSH keys

There are multiple ways to log in to Rackham.

This page describes how to log in to Rackham using a terminal and an SSH key pair.

1. Get inside SUNET

When inside SUNET, one can access a Rackham console environment using SSH and SSH keys.

Forgot how to get within SUNET?

See the 'get inside the university networks' page here

This is considered a bit harder to setup, but one only needs to type one password to login to Rackham. If you don't mind typing your UPPMAX password twice, an easier setup is log in to the Rackham console environment with a password.

2. Use ssh to log in

From a terminal, use ssh to log in:

ssh -AX [user]@rackham.uppmax.uu.se

For example:

ssh -AX sven@rackham.uppmax.uu.se

3. Type your UPPMAX password

Type your UPPMAX password.

4. You are in

Enjoy! You are in! To be precise, you are on a Rackham login node.

How to behave on a login node

On a login node, one can and should do simple things only: it is a resource shared with all other users on that node.

If you need to do more intense calculations, use the Slurm job scheduler.

If you need to do more intense calculations interactively, use an interactive node.

In a Rackham console environment:

  • Text display is limited to 50kBit/s. This means that if you create a lot of text output, you will have to wait some time before you get your prompt back.
  • Cut, copy and paste work as usual. Be careful to not copy-paste sensitive data!