如何开通mysql远程连接设置

mysql数据库远程访问设置方法   1、修改localhost 更改 "mysql" 数据库里的 "user" 表里的 "host" 项，从"localhost"改成"%" mysql>use mysql; mysql>update user set host = '%' where user = 'root'; mysql>select host, user from user; mysql>FLUSH PRIVILEGES; 2、指定授权 使用myuser/mypassword从任何主机连接到mysql服务器: GRANT ALL PRIVILEGES ON *.* TO 'myuser'@'%' IDENTIFIED BY 'mypassword' WITH GRANT OPTION; 使用myuser/mypassword从ip为192.168.1.250的主机连接到mysql服务器: GRANT ALL PRIVILEGES ON *.* TO 'myuser'@'192.168.1.250' IDENTIFIED BY 'mypassword' WITH GRANT OPTION; 3、泛授权 mysql -h localhost -u root mysql>GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' WITH GRANT OPTION; //赋予任何主机上以root身份访问数据的权限 mysql>FLUSH PRIVILEGES;   解决Mysql无法远程连接的问题 1、Mysql的端口是否正确 通过netstat -ntlp 查看端口占用情况，一般情况下端口是3306。在用工具连接MySQl是要用到端口。例如My Admin\My Query Browser\MySQl Front等。 2、检查用户权限是否正确 mysql库的user表里有两条记录：host分别为localhost和%(为了安全，%可以换成你需要外部连接的IP)。 3、查看/etc/mysql/my.cnf中,skip-networking 是否已被注掉 需要注掉 报错：ERROR 2003 (HY000): Can't connect to MySQL server on '192.168.1.250' (111) sudo gedit /etc/mysql/my.cnf #skip-external-locking #bind-address        = 127.0.0.1 skip-name-resolve 4、查看iptables是否停掉,没关的情况下,无法连接 通过：service iptables stop临时关闭。 报错：ERROR 2003 (HY000): Can't connect to MySQL server on '192.168.1.250' (113)