如何解决ssh，scp程序报错的问题

在系统中不知怎么的出现了ssh,scp程序报错的问题，出现一系列的乱码，很让人不知所措，所以要进行解决，那么要怎么的解决呢！一起去看看吧！　　
　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　　05:25:84:ea:dd:92:8d:80:ce:ad:5b:79:58:fe:c9:42.
　　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:10　
　RSA host key for 192.168.1.90 has changed and you have requested strict checking.　　Host key verification failed.　
解决方案：　
　Shell代码　
　cd ~/.ssh　　rm known_hosts　　
以上就是解决ssh,scp程序报错的问题，处理好了以后，就是的系统的安全大大的提高了。