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Recommended Terminal SetupΒΆ

Before configuring your ~/.ssh/config file, ensure that you have completed the First Time Login process and set your new cluster password. SSH connections using this configuration will not succeed until your temporary password has been replaced.

  1. In a new local terminal run; mkdir -p ~/.ssh/sockets this will create a subdirectory in your home directory to store socket configurations.

  2. Open your ssh config file (e.g. nano ~/.ssh/config to open with the text editor nano) and add the following

Make sure to replace username with your BMRC Username in all four places

Host *
    ControlMaster auto
    ControlPath ~/.ssh/sockets/ssh_mux_%h_%p_%r
    ControlPersist 1

Host bmrc1
     User username
     hostname cluster1.bmrc.ox.ac.uk
     ForwardAgent yes
     ForwardX11Trusted yes
     ControlMaster auto
     ControlPath ~/.ssh/sockets/ssh-socket-%r-%h-%p
     ControlPersist 24h
     ServerAliveInterval 300
     ServerAliveCountMax 2

Host bmrc2
     User username
     hostname cluster2.bmrc.ox.ac.uk
     ForwardAgent yes
     ForwardX11Trusted yes
     ControlMaster auto
     ControlPath ~/.ssh/sockets/ssh-socket-%r-%h-%p
     ControlPersist 24h
     ServerAliveInterval 300
     ServerAliveCountMax 2

Host bmrc3
     User username
     hostname cluster3.bmrc.ox.ac.uk
     ForwardAgent yes
     ForwardX11Trusted yes
     ControlMaster auto
     ControlPath ~/.ssh/sockets/ssh-socket-%r-%h-%p
     ControlPersist 24h
     ServerAliveInterval 300
     ServerAliveCountMax 2

Host bmrc4
     User username
     hostname cluster4.bmrc.ox.ac.uk
     ForwardAgent yes
     ForwardX11Trusted yes
     ControlMaster auto
     ControlPath ~/.ssh/sockets/ssh-socket-%r-%h-%p
     ControlPersist 24h
     ServerAliveInterval 300
     ServerAliveCountMax 2
3. Ensure the permissions are correct by running 

chmod 600 ~/.ssh/config
4. Now you can connect login node of interest with the aliases such as bmrc4 , bmrc2, etc. For an example, if you wanto to connec to cluster4.bmrc.ox.ac.uk which is bmrc4, execute 

ssh bmrc4