리눅스(Linux) SSH RSA 접속 에러 해결방법(IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!)

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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 the RSA host key has just been changed.
The fingerprint for the RSA key sent by the remote host is
e6:51:f6:8e:07:41:b2:bb:7c:13:60:e5:bd:b5:99:5a.
Please contact your system administrator.
Add correct host key in /root/.ssh/known_hosts to get rid of this message.
Offending key in /root/.ssh/known_hosts:8
RSA host key for 192.168.0.100 has changed and you have requested strict checking
Host key verification failed.

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리눅스 root 계정에서

ssh-keygen -R 192.168.0.100