ssh的一個(gè)小問題解決

sunjiangang-ok

今天一開機(jī)登錄到另一臺(tái)機(jī)子的時(shí)候，出現(xiàn)了如下問題：

1. @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
   
2. @ WARNING: REMOTE HOST IDENTIFICATION HAS @
   
3. @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
   
4. IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING
   
5. Someone could be eavesdropping on you right now (man-in-the-middle attack)!
   
6. It is also possible that the RSA host key has just been changed.
   
7. The fingerprint for the RSA key sent by the remote host is
   
8. 4e:d2:94:d9:ce:58:2e:9e:93:7b:33:49:bb:77:e1:dc.
   
9. Please contact your system administrator.
   
10. Add correct host key in /home/sunny/.ssh/known_hosts to get rid of this message.
    
11. Offending key in /home/sunny/.ssh/known_hosts:6
    
12. RSA host key for 192.168.3.118 has changed and you have requested strict checking.
    
13. Host key verification failed.

經(jīng)過核對(duì)之后，自已的操作沒有問題。仔細(xì)一看英文的錯(cuò)誤，然后百度了一下，這個(gè)問題很好解決，把~.ssh/known_hosts內(nèi)容清空一下，重新登錄即可。

但這個(gè)是為什么呢？