What does this message mean? Is this a potential problem? Is the channel not secure?
Or is this simply a default message that is always displayed when connecting to a new server?
I am used to seeing this message when using SSH in the past: I always entered my login with a password the normal way, and I felt fine about it because I wasn't making use of private/public keys (which is much more secure than a short password). But this time I have set up a public key with ssh for my connection to bitbucket but I still got the message. I am aware that the passphrase prompt at the end is a different, supplementary security measure, for the decryption of the private key.
I'm hoping somebody can give a nice explanation for what is meant by this "authenticity can't be established" message.
The authenticity of host 'bitbucket.org (18.104.22.168)' can't be established. RSA key fingerprint is 97:8c:1b:f2:6f:14:6b:5c:3b:ec:aa:46:46:74:7c:40. Are you sure you want to continue connecting (yes/no)? yes Warning: Permanently added 'bitbucket.org,22.214.171.124' (RSA) to the list of known hosts. Enter passphrase for key '/c/Users/Steven/.ssh/id_rsa':