ssh-keyscan Get the public ssh keys of remote hosts. Retrieve all public ssh keys of a remote host: ssh-keyscan {{host}} Retrieve all public ssh keys of a remote host listening on a specific port: ssh-keyscan -p {{port}} {{host}} Retrieve certain types of public ssh keys of a remote host: ssh-keyscan -t {{rsa,dsa,ecdsa,ed25519}} {{host}} Manually update the ssh known_hosts file with the fingerprint of a given host: ssh-keyscan -H {{host}} >> ~/.ssh/known_hosts