1130 - Host ‘win7' is not allowed to connect to this mysql server

远程连接自己或别人的mysql时，弹出了提示：“1130 - Host ‘win7‘ is not allowed to connect to this mysql server”，意思是主机不允许连接到mysql服务器，不允许的原因是连接方没有足够的权限。解决办法有两个：

方法一：
1）允许任何用户连接：
update user set host=‘%‘ where user=‘root‘;
flush privileges;

2）允许ip 192.168.1.3连接
update user set host=‘192.168.1.3‘ where user=‘root‘;
flush privileges;

3）允许ip是192.168.1开头的任何用户连接：
update user set host=‘192.168.1%‘ where user=‘root‘;
flush privileges;

方法二：
1）允许任何用户使用root/root连接
grant all privileges on *.* to ‘root‘@‘%‘ identified by ‘root‘ with grant option;
flush  privileges;

2）允许用户root从ip为192.168.1.3的主机连接到mysql服务器，并使用root作为密码
grant all privileges on *.* to ‘root‘@‘192.168.1.3‘ identified by ‘root‘ with grant option;
flush privileges;

3）允许用户root从ip为192.168.1.3的主机连接到mysql服务器的dk数据库，并使用root作为密码
grant all privileges on dk.* to ‘root‘@‘192.168.1.3‘ identified by ‘root‘ with grant option;
flush privileges;

1130 - Host ‘win7' is not allowed to connect to this mysql server