Updating SSH Key Fingerprints
The first time you connect to a remote computer using SSH, the local computer prompts for permission to add the remote computer’s fingerprint to the user’s ~/.ssh/known_hosts file. A message like this appears: The authenticity of host “server1.pretendco.com” can’t be established.
RSA key fingerprint is f8:0e:37:53:74:f1:dd:cd:5a:a4:1d:b3:57:a9:a6.
Are you sure you want to continue connecting [...]