如果在用 Mac 连接搬瓦工VPS时提示“WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED”，“IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY”，最后提示“Host Key verification failed”的错误导致连不上搬瓦工时：

直接 vi /Users/your_PC_name/.ssh/known_hosts 编辑本地已存的密钥，找到对应的签名记录，删除即可。