Step-by-step guide

Pre-requisite: please create a ssh config file .ssh/config  adapting the template below. 

Host ela
    HostName ela.cscs.ch
    User <username>
    IdentityFile ~/.ssh/cscs-key
    IdentitiesOnly yes

Host daint-ela
    Hostname daint.cscs.ch
    User <username>
    IdentityFile ~/.ssh/cscs-key
    ProxyJump ela
    IdentitiesOnly yes

Host eiger-ela
    Hostname eiger.cscs.ch
    User <username>
    IdentityFile ~/.ssh/cscs-key
    ProxyJump ela
    IdentitiesOnly yes

Please note that the ssh config file can be written in many different ways, the template above is for your reference only. In particular:

  • The <username>  in the above snippet needs to be configured with your cscs username
  • Adjust to your own preferenceThe naming convention for Host given as daint-ela or eiger-ela 

Please follow the steps below (the first two steps are required if you are connecting for the first time or if the downloaded keys got expired):

  1. Log in to the SSHService web application to generate keys and download (or) download the keys using the sshservice-cli
  2. Make sure the downloaded keys are copied to the folder ~/.ssh with names cscs-key  and cscs-key-cert.pub. The permission of cscs-key should be set as 600 
  3. Connect to Piz Daint or Eiger via the frontend Ela using the commands below:
ssh daint-ela 

OR

ssh eiger-ela