远程连接mysql出现10060错误

网上很多方法都试过就是不行，最后通过设置端口的防火墙成功连接

iptables -I INPUT -p tcp -m state --state NEW -m tcp --dport 3306 -j ACCEPT

mysql -u root -p  use mysql;  select host,user from user where user='root';  update user set host = '%' where user ='root';  flush privileges;