Where to find and validate SSH key of the server itself

[reyt]

In order to let bitbucket using SSH, I just cross the "SSH enabled" button.

But I have no means to recover which public key he is using, exept from  accept that the presented fingerprint of the certificate is correct.

However, in our environment, we need to put a bit more of security and fingerprint validation must be made via comparison in another repository. As we do for other ssh fingerprint revover by reading the file /etc/ssh/ssh_host_ecdsa_key.pub

[reyt]

I know that it's possible to see it under the ssh key management for each user, but I need it from shell.