When I try this command it fails:
ssh -o FingerprintHash=sha256 example.com
command-line: line 0: Bad configuration option: fingerprinthash
Why is this? Has this option been removed from OpenSSH? My ssh client version is
OpenSSH_6.6.1p1 Ubuntu-2ubuntu2.10, OpenSSL 1.0.1f 6 Jan 2014.
My intention is to verify the fingerprint from the client’s output with the fingerprint sent to me by the sysadmin, which was in another format (base64-encoded SHA256, I believe).