服务器ssh认证

只需要将服务器上的/etc/ssh/*_key目录备份、拷贝即可实现改服务器ip或重装openssh-server、系统重装等而不影响客户端连接

如下面报错就可以规避了

@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@

@    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 ECDSA key sent by the remote host is

5c:99:a2:08:02:bf:1b:45:37:ce:96:29:da:c2:e3:dd.

Please contact your system administrator.

Add correct host key in /root/.ssh/known_hosts to get rid of this message.

Offending ECDSA key in /root/.ssh/known_hosts:2

  remove with: ssh-keygen -f "/root/.ssh/known_hosts" -R 10.1.81.116

ECDSA host key for 10.1.81.116 has changed and you have requested strict checking.

Host key verification failed.

本文转自linux博客51CTO博客，原文链接http://blog.51cto.com/yangzhiming/1669007如需转载请自行联系原作者

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