1.阿里云开放3306端口; 2.执行: 使用 mysql 命令为 root 用户授权 mysql 远程连接服务 mysql> grant all privileges on . to ‘root’@’%’ identified by ‘root’ with grant option; 其他: 查看临时密码: grep ‘A temporary password’ /var/log/mysqld.log 修改密码: set password = password(‘root’) 解决密码安全性较低的问题: set global validate_password_policy=LOW; set global validate_password_length=4;