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@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@ 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
25:ab:2e:55:30:11:a0:84:d8:45:2f:5b:e2:47:eb:1e.
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
:1
RSA host key
for
192.168.1.240 has changed and you have requested strict checking.
Host key verification failed.
lost connection
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用跳板机去连接某机器的时候出现了这样的提示，开始我以为是命令错误，仔细一看，原来是密钥验证错误，说现在这个机器的新指纹是25:ab:2e:55:30:11:a0:84:d8:45:2f:5b:e2:47:eb:1e，该服务器原来的公钥记录在文件 ~/.ssh/known_hosts 中第 1 行。
可能是我的账号信息做过更改。那么遇到这样的问题就找到该跳板机root目录下的如下的ssh连接文件夹：
1. cd ~/.ssh/
2. vi known_hosts
3. 找到和远程主机ip一致的密钥保存信息，直接dd删除，然后:x保存退出
4. 重新连接，输入密码，发现连接成功
本文转自 苏幕遮618 51CTO博客，原文链接:http://blog.51cto.com/chenx1242/1812605
