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

$> ssh aa

For those users from our Member and Cooperating States with no formal access to the HPCF, or for serial jobs that will not use HPCF Member State allocation, they can log in to

# or for users with no formal access to HPC service:
$> ssh ecs

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

   No Format
   $> ls ~/.ssh/id_rsa* ~/.ssh/id_rsa ~/.ssh/id_rsa.pub

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

   No Format
   $> ssh-keygen -t rsa # press 'enter' 3 more times

   
   

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

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

   
   

   No Format
   $> 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 # or iffor users youwith don'tno haveformal access to HPC HPCFservice: $> 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:

   No Format
   $> rsync -av ~/.ssh/id_rsa cca:.ssh/ $> rsync -av ~/.ssh/id_rsa aa:.ssh/ # or iffor users youwith don'tno haveformal access to HPCFHPC service: $> rsync -av ~/.ssh/id_rsa ecs:.ssh/

   
   

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