[Raspbian]ssh 접속 오류(WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!)

라즈비안 OS를 변경 후 ssh접속 오류 발생

라즈베리는왜 이러는걸까222

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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 ECDSA key sent by the remote host is
SHA256:UnJZyIH/8Bfj4dj9bhzR7hpRCJQG4uTuQ0IEuUY3yBE.
Please contact your system administrator.
Add correct host key in C:\\Users\\srokinc1/.ssh/known_hosts to get rid of this message.
Offending ECDSA key in C:\\Users\\srokinc1/.ssh/known_hosts:10
ECDSA host key for 192.168.0.103 has changed and you have requested strict checking.
Host key verification failed.

해결방법

ssh-keygen -R 라즈비안 IP

 

발생원인

기존 사용했던, 라즈비안 OS를 변경했더니 발생했다.  구글링 결과

A host 가 있고 B server가 있다. 
A는 항상 B 서버에 ssh접속하고 있었는데 B서버에 ssh나 os를 새로 설치 하는 작업을 했다.
그런후에 A는 똑같이 B에 접속을 한다. 이때 B에 IP는 똑같다면...
위와 같은 메시지가 뜬다!!

https://visu4l.tistory.com/343

ssh 원격 접속 에러(WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!)