Arkansas High Performace Computing Center [hpcwiki]

SSH Certificates can be used to log into Pinnacle without using password authentication. A set of two files has to be present on the SSH client computer:

• SSH private key (key-ed25519)
• SSH public certificate (key-ed25519-cert.pub)

Both files are generated on the Pinnacle cluster.

The pair of needed files can be downloaded by logging into

https://arp-ood.hpc.uark.edu

Then in the main menu select: Files→SSH Certificate Update

Check both of the listed files, and at the top click the “Download” button.

The SSH private key (key-ed25519), once generated and downloaded to the SSH client machine does not change. However, the SSH public certificate is valid for 12 hours. After that period it has to be regenerated and downloaded again to the SSH client machine (as described in the previous section).