[大数据入门-linux]linux通过ssh连接时出现 WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!

linux通过ssh连接时出现 WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!

[大数据入门-linux]

linux通过ssh链接是出现WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! 如下错误提示。

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@ WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! @
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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
a8:06:af:7f:97:62:4b:84:62:5d:d5:8f:9c:a1:09:af.
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 node3 has changed and you have requested strict checking.
Host key verification failed.
lost connection

解决方法：
1.删除本机中~./.ssh所有的文件

# rm -fr ~/.ssh/*

2.重新生成rsa公私钥

# ssh-keygen -t rsa -P '' -f ~/.ssh/id_rsa              # scp /root/.ssh/id_rsa.pub root@node3:~/.ssh/          ## 远程服务器        # cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys       # chmod 0600 ~/.ssh/authorized_keys