Access is still restricted to a selected number of alpha users


You can connect for the first time via SSH from another ECMWF platform.

$> ssh aa


Upon logging in, please take a look at the message of the day displayed on the login nodes (or review /etc/motd). 


If connecting from ECGATE or CCA/CCB no password will be asked. From other platforms you will have to use your ECMWF password to connect.

If you have not changed your password since 18 January 2021, password access may not work.

Password-less access from / to other platforms

If connecting from a different platform and to enable password-less connections and transfers between different platforms, you will need to enable ssh key authentication.

  1. Check if you have an existing rsa key pair on other ECMWF platforms:

    $> ls ~/.ssh/id_rsa*
~/.ssh/id_rsa    ~/.ssh/id_rsa.pub

    If you don't, you may generate them like so:

    $> ssh-keygen -t rsa                          # press 'enter' 3 more times


  2. Make sure it is added into the different platforms to be used

    If the key was already present in the ~/.ssh/authorized_keys file, it will be duplicated.


    $> ssh-copy-id -i ~/.ssh/id_rsa.pub ecgate
$> ssh-copy-id -i ~/.ssh/id_rsa.pub cca
$> ssh-copy-id -i ~/.ssh/id_rsa.pub aa


  3. Copy also your private key onto those platforms so you can make the connections in both directions:

    $> rsync -av ~/.ssh/id_rsa cca:.ssh/
$> rsync -av ~/.ssh/id_rsa aa:.ssh/