SSHing into kraken

Kraken is our compute VM that is running on Euphrates, the compute server we bought for the lab on the ToMCAT grant. It is fairly capable (~750 GB RAM, 128 cores, two A100 GPUs).

Here are instructions for SSH-ing into Kraken:

• Generate an SSH key by running the following command (I recommend not requiring a passphrase as it will get old to keep typing it in):

ssh-keygen -t ed25519

• Put the following lines in your ~/.ssh/config file:

Host *
    ServerAliveInterval 10
    ServerAliveCountMax 3
    ForwardAgent yes

Host kraken
    HostName kraken.sista.arizona.edu

If your username on your local computer is different from your UA NetID, add a line like the one below above the HostName kraken.sista.arizona.edu line:

    User <username>

• Copy your SSH key to kraken by running the following command:

ssh-copy-id kraken

Then, test whether you can ssh into kraken by running the following command:

ssh kraken