SSH登陆错误

昨天登录好的，今天已登录提示如下：

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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 a host key has just been changed.
The fingerprint for the RSA key sent by the remote host is
SHA256:BL+HuRQcU6BvdyrWeN3bGjfyAiA9uUFs/u/seBspQ5Q.
Please contact your system administrator.
Add correct host key in /home/bc/.ssh/known_hosts to get rid of this message.
Offending RSA key in /home/bc/.ssh/known_hosts:5
  remove with:
  ssh-keygen -f "/home/bc/.ssh/known_hosts" -R jps.bonc.local
RSA host key for jps.bonc.local has changed and you have requested strict checking.
Host key verification failed.

解决问题：

细心的人看给的提示信息就能解决问题^_^

　　公钥过期

1.ssh-keygen -R 加上你要连接的远程的ip（仔细观察就会发现提示信息中就有）

2.可以去 用户目录下的.ssh目录（笔者的/home/bc/）下找known_hosts对应的RSA key删除。