linux(CentOs)内网SSH，SCP命令访问服务器报错，Add correct host key in~/.ssh/known_hosts to get rid of this message

首先跟大家说一下我的遇到的问题，有一台虚拟机服务器重新装了系统ip:12.29.2.3，由于服务器12.29.2.3出问题了重新装了系统，本地Mac (如果是其他的linux系统一样)使用ssh方式内网登录12.29.2.3时会报错，主要原因是因为本地访问过12.29.2.3的服务器，会把服务器（12.29.2.3）登录标识证书记录下来，下次登录时会去比对之前的记录，由于系统重装标识变了导致不能继续登录。

解决方案是在客户端执行命令，清除本地缓存的证书：

ssh-keygen -R 12.29.2.3 

12.29.2.3 ：为要登录的服务器ip

原始错误如下：

$ scp ~/some.zip [email protected]:~

@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@

@    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:

Please contact your system administrator.

Add correct host key in ~/.ssh/known_hosts to get rid of this message.

Offending ECDSA key in ~/.ssh/known_hosts:17

ECDSA host key for 12.29.2.3 has changed and you have requested strict checking.

Host key verification failed.

lost connection