[dinghuaneng@95 move_data]$ scp * dinghuaneng@172.16.103.176:/home/dinghuaneng
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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
e0:59:1a:4d:52:54:f9:81:a2:f1:ca:11:55:26:74:86.
Please contact your system administrator.
Add correct host key in /home/dinghuaneng/.ssh/known_hosts to get rid of this me
Offending key in /home/dinghuaneng/.ssh/known_hosts:1
RSA host key for 172.16.103.176 has changed and you have requested strict checki
Host key verification failed.
lost connection
操作：在執行scp命令的主機上執行：
vi ~/.ssh/known_hosts
刪除IP為172.16.103.176 的行即可。
該現象在虛擬機刪除之后重新建立的時候尤其明顯，主要是因為原始主機已經存了一份了known_hosts了，需要更新。
參見：http://canlynet.blog.163.com/blog/static/25501365201092711383363/