RSA host key for HOST has changed and you have requested strict checking

RSA host key for HOST has changed and you have requested strict checking

If you get this:

————————————-
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@       WARNING: POSSIBLE DNS SPOOFING DETECTED!          @
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
The RSA host key for HOST has changed,
and the key for the corresponding IP address IP
is unknown. This could either mean that
DNS SPOOFING is happening or the IP address for the host
and its host key have changed at the same time.
今天突然发现git连不上服务器了，ssh连接的时候会抱错:Read socket failed: Connection reset by peer.

重新把Windows 7服务器上的CopSSH重新安装一次以后，再用ssh连接结果报下面的错：

@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@    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
26:4c:b0:d0:e1:fa:de:f4:1d:1d:2f:33:b7:81:fc:78.
Please contact your system administrator.
Add correct host key in /.ssh/known_hosts to get rid of this message.
Offending key in /.ssh/known_hosts:2
RSA host key for 192.168.1.110 has changed and you have requested strict checkin
g.
Host key verification failed.

搜索到known_hosts文件，清空，重新启动还是不行……

google以后发现了解决方法：

命令行调用如下命令：ssh-keygen -R HOST_IP        (HOST_IP替换成你的服务器的IP)

原文参考在这里：http://codingrecipes.com/rsa-host-key-for-host-has-changed-and-you-have-requested-strict-checking

@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@    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
SOME_KEY
Please contact your system administrator.
Add correct host key in /Users/user… to get rid of this message.
Offending key in /Users/user…
RSA host key for HOST has changed and you have requested strict checking.
Host key verification failed.
————————————-

Then try:

ssh-keygen -R HOST

And try reconnecting…