ssh 远程变更
来源:互联网 发布:守望先锋淘宝 编辑:程序博客网 时间:2024/04/29 17:45
使用SSH登录某台机器,有时因为server端的一些变动,会出现以下信息:
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@ WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! @
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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
50:e6:cb:58:bc:b7:a3:f6:e8:8f:46:a7:c1:5f:c2:df.
Please contact your system administrator.
Add correct host key in /home/cobyeah/.ssh/known_hosts to get rid of this message.
Offending key in /home/cobyeah/.ssh/known_hosts:7
RSA host key for 192.168.0.4 has changed and you have requested strict checking.
Host key verification failed.
(此处先不提及原理,只讲处理方法,需要了解原因的请留言或找其他资料)
这时候的处理方法,有3种:
1. 删除提示信息中,对应的行数,例如上例,需要删除/home/cobyeah/.ssh/known_hosts文件的第7行。
2. 删除整份/home/cobyeah/.ssh/known_hosts文件。
3. 修改/etc/ssh/ssh_config文件的配置,以后则不会再出现此问题StrictHostKeyChecking no
UserKnownHostsFile /dev/null