$ ssh -l サーバーID -i サーバーID_rsa サーバーID.xsrv.jp -p 10022
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@ 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
SHA256:XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX.
Please contact your system administrator.
Add correct host key in /Users/testuser/.ssh/known_hosts to get rid of this message.
Offending ED25519 key in /Users/testuser/.ssh/known_hosts:6
Host key for [myservername.xsrv.jp]:10022 has changed and you have requested strict checking.
Host key verification failed.