SSHFPを設定してみる - skubotaの日記
RFC 4255 - Using DNS to Securely Publish Secure Shell (SSH) Key Fingerprints
$ dig sshfp git.fedorahosted.org (略) ;; QUESTION SECTION: ;git.fedorahosted.org. IN SSHFP ;; ANSWER SECTION: git.fedorahosted.org. 60 IN SSHFP 1 1 A843ECED826C2F0075888150E89AE4567CD37D7F git.fedorahosted.org. 60 IN SSHFP 2 1 DE382873ABE19B40AEFE714D686E15E16EAD5177