mysql设置ip连接

1. 授权用户root使用密码jb51从任意主机连接到mysql服务器：

代码如下:

GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY 'jb51' WITH GRANT OPTION;
flush privileges;

 
2.授权用户root使用密码jb51从指定ip为218.12.50.60的主机连接到mysql服务器：

代码如下:

GRANT ALL PRIVILEGES ON *.* TO 'root'@'218.12.50.60' IDENTIFIED BY 'jb51' WITH GRANT OPTION;
flush privileges;