Error “The authenticity of host ‘github.com’ can’t be established. RSA key fingerprint “
You should simply be able to answer ‘yes‘, which will update your ~/.ssh/known_hosts file. A better approach, to avoid any MITM (Man-In-The-Middle) attack, would be (as commented below by Mamsds) to verify GitHub’s public key first (see “GitHub’s SSH key fingerprints”) and, if you find a match, then you can answer ‘yes’. Example: ssh-keyscan -t … Read more