背景
公司xx云到期，需要迁移环境
自己提测的时候遇到了相关的问题记录下
记录
执行push报错如下
https://www.cnblogs.com/52php/p/6637221.html@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@ WARNING: POSSIBLE DNS SPOOFING DETECTED! @
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
The RSA host key for [git.ccc.con]:2222 has changed,
and the key for the corresponding IP address [12xxx:xxx210]:36000
is unknown. This could either mean that
DNS SPOOFING is happening or the IP address for the host
and its host key have changed at the same time.
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@ 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:mnqN0h00k.
Please contact your system administrator.
Add correct host key in /Users/leesin/.ssh/known_hosts to get rid of this message.
Offending RSA key in /Users/leesin/.ssh/known_hosts:31
RSA host key for [xxx]:36000 has changed and you have requested strict checking.
Host key verification failed.
fatal: Could not read from remote repository.Please make sure you have the correct access rights
and the repository exists.
针对第二个问题，还有另外一个说法：
ssh-keygen -R xxx.xxx.xxx.xxx (服务器ip地址)
目的是清除你当前机器里关于你的远程服务器的缓存和公钥信息，注意是大写的字母“R”。
详情看：https://blog.csdn.net/ouyang_peng/article/details/81536396
但是我尝试了很多次没有成功。
于是尝试另一种说法https://www.cnblogs.com/52php/p/6637221.html 直接删掉这个缓存文件。于是乎成功了。
总结
公司的运维发布了邮件由xx:xx:xx:xx迁移到xx:xx:xx:xx
①修改自己的hosts文件为运维邮件中的内容
②rm ~/.ssh/known_hosts