登录是出现如下提示:ssh root@ 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 the RSA host key has just been changed.The fingerprint for the RSA key sent by the remote host is76:fb:b3:70:14:48:19:d6:29:f9:ba:42:46:be:fb:77.Please contact your system administrator.Add correct host key in /home/fante/.ssh/known_hosts to get rid of thismessage.Offending key in /home/fante/.ssh/known_hosts:68RSA host key for has changed and you have requested strict checking.Host key verification failed.server端密码或是ip对应的server等其他发生改变的时候。解决方法一般就需要删除~/.ssh/known_hosts的对应行,然后再登录即可。