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  • Linux:SSH错误"WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! "

    hadoop@master:~$ scp /home/hadoop/.ssh/authorized_keys node3:/home/hadoop/.ssh/
    @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
    @    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
    a8:68:2e:0e:1e:67:33:db:0f:f8:d0:0b:43:fe:17:e2.
    Please contact your system administrator.
    Add correct host key in /home/hadoop/.ssh/known_hosts to get rid of this message.
    Offending ECDSA key in /home/hadoop/.ssh/known_hosts:6
      remove with: ssh-keygen -f "/home/hadoop/.ssh/known_hosts" -R node3
    ECDSA host key for node3 has changed and you have requested strict checking.
    Host key verification failed.
    lost connection

    出现错误原因:

    之前使用ssh登录过该机器,在~/.ssh/known_host中记录了该信息。

    解决方案:删除known_host文件中的内容。

    hadoop@master:~$ cd .ssh
    hadoop@master:~/.ssh$ ls
    authorized_keys  id_rsa  id_rsa.pub  known_hosts
    hadoop@master:~/.ssh$ sudo vim known_hosts
    [sudo] password for hadoop:
    hadoop@master:~/.ssh$ scp authorized_keys node1:/home/hadoop/.ssh/
    authorized_keys                                                                                                                                             100%  395     0.4KB/s   00:00
    hadoop@master:~/.ssh$ scp authorized_keys node2:/home/hadoop/.ssh/
    authorized_keys                                                                                                                                             100%  395     0.4KB/s   00:00
    hadoop@master:~/.ssh$ scp authorized_keys node3:/home/hadoop/.ssh/
    hadoop@node3's password:
    authorized_keys                                                                                                                                             100%  395     0.4KB/s   00:00
    hadoop@master:~/.ssh$

    参考:http://www.cnblogs.com/york-hust/archive/2012/03/27/2420168.html

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  • 原文地址:https://www.cnblogs.com/yy3b2007com/p/5880198.html
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