http://blog.csdn.net/liuxiyangyang/article/details/8951262
问题：”Host ‘admin-PC’ is not allowed to connect to this MySQLserver” （其中，admin-PC为我的机器名）
原因：安装MySQL时没有勾选“Enable root access from remote machines”
解决办法：执行命令
GRANT ALL PRIVILEGES ON . TO ‘root’@’%’ IDENTIFIED BY ‘mypassword’;
flush privileges;
