@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@ WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! @
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IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!
Someone could be eavesdropping on you right now (man-in-the-middle attack)!
It is also possible that a host key has just been changed.
The fingerprint for the ED25519 key sent by the remote host is
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx 伏せ文字
Please contact your system administrator.
Add correct host key in /root/.ssh/known_hosts to get rid of this message.
Offending ECDSA key in /root/.ssh/known_hosts:2
Host key for [202.229.98.23]:822 has changed and you have requested strict checking.
Host key verification failed.
rsync: did not see server greeting
rsync error: error starting client-server protocol (code 5) at main.c(1821) [Receiver=3.2.3]
これは、IPアドレスの振り直しやOS再インストールなどでホスト鍵が変わってしまった場合に出るエラーの様だ。その回答はhttps://qiita.com/hnw/items/0eeee62ce403b8d6a23c に有った。接続元で
$ ssh-keygen -R ‘[IPアドレス又はドメイン]:ポート番号’
でエラーが出なくなる
