exp : Linux/ ssh登录失败: REMOTE HOST IDENTIFICATION HAS CHANGED

青旅半醒 2022-12-29 04:54 107阅读 0赞

时间：2020-12-20  
系统：ubuntu 18.04

$ ssh xxx@192.168.6.111
    @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
    @    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
    SHA256:YrQ+gVZEbmDtg0keh6jdgpJV/nU5UO/5U/iQDTHpRcc.
    Please contact your system administrator.
    Add correct host key in /home/xxx/.ssh/known_hosts to get rid of this message.
    Offending ECDSA key in /home/xxx/.ssh/known_hosts:10
      remove with:
      ssh-keygen -f "/home/xxx/.ssh/known_hosts" -R "192.168.6.111"
    ECDSA host key for 192.168.6.111 has changed and you have requested strict checking.
    Host key verification failed.

问题原因：  
远程电脑重新安装了，之前保存的信息失效。

解决方案：  
执行提示中的命令

ssh-keygen -f "/home/xxx/.ssh/known_hosts" -R "192.168.6.111"

参考：  
REMOTE HOST IDENTIFICATION HAS CHANGED 问题解决  
[https://www.jianshu.com/p/04328ed5970e][https_www.jianshu.com_p_04328ed5970e]

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[https_www.jianshu.com_p_04328ed5970e]: https://www.jianshu.com/p/04328ed5970e
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