设置服务器上MySQL允许外网访问

1.修改配置文件sudo vim /etc/mysql/mysql.conf.d/mysqld.cnf把bind-address参数的值改成你的内/外网IP或0.0.0.0,或者直接注释掉这行.

2.登录数据库mysql -u root -p

输入密码mysql> use mysql;

3.查询hostmysql> select user,host from user;

4.创建host如果没有"%"这个host值,就执行下面这两句:mysql> update user set host='%' where user='root';mysql> flush privileges;

5.授权用户任意主机以用户root和密码mypwd连接到mysql服务器mysql> GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY 'mypwd' WITH GRANT OPTION;mysql> flush privileges;

IP为192.168.1.102的主机以用户myuser和密码mypwd连接到mysql服务器mysql> GRANT ALL PRIVILEGES ON *.* TO 'myuser'@'192.168.1.102' IDENTIFIED BY 'mypwd' WITH GRANT OPTION; mysql> flush privileges;

 PS：最好新创建用户

CREATE USER 'username'@'host' IDENTIFIED BY 'password';

来赋予对应表的权限。 

PS：以上为授权方法，以下为改表方法：

mysql> use mysql;mysql> update user set host='%' where user='root';