SSH登录Linux提示Host key verification failed.解决方法

2019年3月9日13:18:55Linux SSHSSH登录Linux提示Host key verification failed.解决方法已关闭评论253 views

SSH登录Linux服务器提示Host key verification failed.如何解决?新手站长网分享:文章源自新手站长网-https://www.xinshouzhanzhang.com/host-key-verification-failed.html

Host key verification failed.解决方法

ssh登录Linux服务器时提示如下:文章源自新手站长网-https://www.xinshouzhanzhang.com/host-key-verification-failed.html

aliyunbaike@aliyundeMacBook-Pro:~$ ssh root@47.74.190.156
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@    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:Ms+BRn93GbOO1fwP6g1O+UwSRFv9KIUMGeoHDt70OfQ.
Please contact your system administrator.
Add correct host key in /Users/aliyunbaike/.ssh/known_hosts to get rid of this message.
Offending ECDSA key in /Users/aliyunbaike/.ssh/known_hosts:6
ECDSA host key for 47.74.190.156 has changed and you have requested strict checking.
Host key verification failed.

报错:ECDSA host key for xx has changed and you have requested strict checking.
Host key verification failed.
,这是由于之前连接过,ssh会默认保存该ip的连接协议信息,当我们再次访问此ip服务器时,ssh会自动匹配之前ssh保存的信息,如果我们对服务器信息作出更改后(例如:重装系统),就会导致本地保存的ssh信息失效,就会报错。文章源自新手站长网-https://www.xinshouzhanzhang.com/host-key-verification-failed.html

解决方法

解决方法:删除本地known_hosts保存的该服务器IP的ssh缓存信息即可文章源自新手站长网-https://www.xinshouzhanzhang.com/host-key-verification-failed.html

执行命令:ssh-keygen -R "你的远程服务器ip地址"文章源自新手站长网-https://www.xinshouzhanzhang.com/host-key-verification-failed.html

删除本地的ssh keygen信息后,再次通过ssh root@ip登录应该就不会报错了。文章源自新手站长网-https://www.xinshouzhanzhang.com/host-key-verification-failed.html