Ubuntu-ssh--경고 : 원격 호스트 ID가 변경되었습니다. 원격 시스템에 ssh 및 rysnc를 사용할 수 없습니다. 다음과 같은 오류 메시지가 계속 표시됩니다. WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! 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 RSA key sent by the remote host is a3:8f:..