mysql授权IP登录

授权所有，youpassword为登录密码
GRANT ALL PRIVILEGES ON *.* TO ‘root‘@‘%‘ IDENTIFIED BY ‘youpassword‘ WITH GRANT OPTION;

指定IP
GRANT ALL PRIVILEGES ON *.* TO ‘root‘@‘171.111.8.130‘ IDENTIFIED BY ‘youpassword‘ WITH GRANT OPTION;

如果失败删除后重新授权
delete from user where host = ‘171.111.8.130‘ and user = ‘root‘;

保存配置

flush privileges;