关于客户端连接mysql的授权问题

mysql远程连接 Host * is not allowed to connect to this MySQL server的错误。

是因为mysql需要授权才能访问。授权方式：

授权给某一个ip：

GRANT ALL PRIVILEGES ON *.* TO 'root'@'192.168.1.3' IDENTIFIED BY 'root' WITH GRANT OPTION;

授权给所有ip：

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