WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED

wubolu

 
    今天新装一台CentOS5.5启动后用ubuntu连接不上，提示如下，但在192.168.1.140本地查看网络全部正常，发现不到什么问题，网上也没有相关资料，清空了ubuntu下的.ssh/known_hosts仍然没有解决。
    后来发现在局域网内有同样IP在上网，才想起原来是有IP冲突，后来CentOS换了一个ip地址后没有出现这个问题了。
 
20101220补充：问题依旧i出现，网上的方法是按照提示清空/root/.ssh/known_hosts公钥文件，但我删除对应IP公钥问题就解决了：
                                       [root@ubuntu10] ssh-keygen -R 192.168.1.140
  /root/.ssh/known_hosts
 

[email=wubolu@wubolu-linux:~%24]wubolu@wubolu-linux:~$[/email] sudo ssh 192.168.1.140 @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ @    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 the RSA host key has just been changed. The fingerprint for the RSA key sent by the remote host is ca:fc:3b:38:39:f4:43:fb:9a:c2:4f:46:8a:3d:46:ba. 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:8 RSA host key for 192.168.1.140 has changed and you have requested strict checking. Host key verification failed.