scp(或SSH)报错:WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED 的解决办法

一台linux重装了系统，SCP无法传文件过去了

scp -P 2222 /home/web_ahai/java-ipm.tar.gz db_igogo@192.168.0.2:/tmp

@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@    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 is
d8:18:94:ce:6c:a4:45:48:aa:10:a4:36:6e:13:71:3f.
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:1
RSA host key for 192.168.1.111 has changed and you have requested strict checking.
Host key verification failed.
lost connection

根本不给我输密码的机会

问题分析：

网上说：因为在本地机器上曾经用SSH登录过这台远程计算机，因而留下了known_hosts的记录，在远程计算机重新安装系统后不能够通过鉴权.

解决办法：

 

  rm -rf /root/.ssh/known_hosts