1.修改mysql密码
mysql> set password for root@localhost = password('新密码');
2.防火墙开启3306端口
A.打开防火墙配置文件：vi /etc/sysconfig/iptables
B.修改3306 DROP为ACCESS :-A INPUT -m state --state NEW -m tcp -p tcp --dport 3306 -j ACCEPT
C.重启防火墙：service iptables restart
3.mysql开启远程访问
A.登录MySQL之后，修改mysql数据库中user表中用户host的值为%
mysql> use mysql;
mysql> update user
set
host =
'%'
where user =
'root'
;
mysql>
select
host, user from user;//查看是否修改成功
B.重启MySQL