suse-linux:~/.ssh # ssh 192.168.1.212
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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 a host key has just been changed.
The fingerprint for the RSA key sent by the remote host is
cd:17:7a:35:8b:8e:95:1d:37:4b:40:0c:a0:a8:ae:0c.
Please contact your system administrator.
Add correct host key in /root/.ssh/known_hosts to get rid of this message.
Offending RSA key in /root/.ssh/known_hosts:3
You can use following command to remove all keys for this IP:
ssh-keygen -R 192.168.1.212 -f /root/.ssh/known_hosts
RSA host key for 192.168.1.212 has changed and you have requested strict checking.
Host key verification failed.
suse-linux:~/.ssh #
按照提示，重新建立连接
suse-linux:~/.ssh # ssh-keygen -R 192.168.1.212 -f /root/.ssh/known_hosts
/root/.ssh/known_hosts updated.
Original contents retained as /root/.ssh/known_hosts.old
suse-linux:~/.ssh #
suse-linux:~/.ssh # ssh 192.168.1.212
The authenticity of host '192.168.1.212 (192.168.1.212)' can't be established.
RSA key fingerprint is cd:17:7a:35:8b:8e:95:1d:37:4b:40:0c:a0:a8:ae:0c.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added '192.168.1.212' (RSA) to the list of known hosts.
root@192.168.1.212's password:
Last login: Fri Jun 7 18:10:54 2013 from 192.168.1.6
[root@linux-212 ~]#
搞定
