秘钥更换导致ssh远程主机时报错：Host key verification failed

最新推荐文章于 2024-11-19 23:59:55 发布

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最新推荐文章于 2024-11-19 23:59:55 发布 · 1.3k 阅读

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#ssh #linux

问题情景

为了实现免密操作，主机A和主机B之间相互添加过安全秘钥。主机A更换硬盘后，仍然使用以前的IP，从主机B ssh登录到主机A失败，报错如下：

@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@    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 a host key has just been changed.
The fingerprint for the ECDSA key sent by the remote host is 0c:f6:6e:35XXXXX
Please contact your system administrator.Add correct host key in /home/maxnet/.ssh/known_hosts to get rid of this message.
Offending ECDSA key in /home/maxnet/.ssh/known_hosts:82
remove with: ssh-keygen -f "/home/xin/.ssh/known_hosts" -R 192.168.3.66
ECDSA host key for 192.168.3.66 has changed and you have requested strict checking.
Host key verification failed.
lost connection

这里主机A地址是xin@192.168.3.66。