Mac使用ssh连接远程时出现报错：
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ @ 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 ED25519 key sent by the remote host is SHA256:17QgI/RJT72bRhFqSBvOTMGnIKJvvxENu4FhU+AzFf4. Please contact your system administrator. Add correct host key in /Users/allen/.ssh/known_hosts to get rid of this message. Offending ED25519 key in /Users/allen/.ssh/known_hosts:18 Host key for [222.188.64.13]:2205 has changed and you have requested strict checking. Host key verification failed.
解决方案：
1、找到.ssh文件夹，一般默认地址在Users/allen/中(allen替换为本机用户名)
2、删除本机 .ssh/known_hosts文件中关于222.188.64.13（你需要连接的IP地址）公钥信息
3、或者直接删除.ssh/known_hosts文件
4、重新ssh，成功连接
✘ allen@AllendeMacBook-Pro ~ ssh root@222.188.64.13 -p 2205 The authenticity of host '[222.188.64.13]:2205 ([222.188.64.13]:2205)' can't be established. ED25519 key fingerprint is SHA256:17QgI/RJT72bRhFqSBvOTMGnIKJvvxENu4FhU+AzFf4. This key is not known by any other names Are you sure you want to continue connecting (yes/no/[fingerprint])? yes
Warning: Permanently added '[222.188.64.13]:2205' (ED25519) to the list of known hosts. root@222.188.64.13's password: