[SSH] WSL 원격 접속 에러 WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!

에러 발생

평소처럼 WSL에 ssh 접속을 하려고 명령어를 입력했는데, 이런 에러가 나오는것이 아니겠는가,,

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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:(비밀).
Please contact your system administrator.
Add correct host key in /(.ssh)/known_hosts to get rid of this message.
Offending ED25519 key in /(.ssh)/known_hosts:51
Host key for (서버 IP) has changed and you have requested strict checking.
Host key verification failed.

 

일반적으로는 아래 명령어로 해결 가능하다고 하는데, 나의 경우 아래 방법으로도 해결하지 못했다.

ssh-keygen -R [ IP or DomainName]

 

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해결

~/.ssh/known_hosts 파일에서 ssh 접속하려는 ip 정보를 지워주고 접속하니 해결되었다.

(vim 에서 line 지우는 커맨드: dd)

sudo vim ~/.ssh/known_hosts

known_hosts 내용