问题背景：
前几日，把云服务器系统由centos改成Ubuntu之后，重新搭建的git服务器环境。
问题描述：
从本机不能clone远程git仓库。
报错如下：
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ @ 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 RSA key sent by the remote host is SHA256:puhqqLAYH9hxo9rEtbhdyoeM98JQsEPY7SKMeNmzt30. Please contact your system administrator. Add correct host key in /c/Users/Daemon/.ssh/known_hosts to get rid of this message. Offending RSA key in /c/Users/Daemon/.ssh/known_hosts:1 RSA host key for 118.89.230.188 has changed and you have requested strict checking. Host key verification failed.
问题解决：
把/c/Users/Daemon/.ssh/known_hosts 文件中118.89.230.188地址的公钥删除，更换系统后，需要重新匹配远程服务器信息。
git操作：WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! （警告:远程主机标识已更改!）
原文：https://www.cnblogs.com/daemonFlY/p/10391351.html