一.can‘t connect to MySql server on ‘192.168.X.X’
這是因為mysql埠被防火牆攔截，需用linux執行如下指令：
1.#/sbin/iptables -I INPUT -p tcp --dport 3306 -j ACCEPT
2.#/etc/rc.d/init.d/iptables save
3.#/etc/init.d/iptables restart
4.檢視埠是否開啟#/etc/init.d/iptables status
二.1130-host ... is not allowed to connect to this MySql server
方法一：把mysql的user表host等於localhost那條資料host=%
mysql -u root -p password>use mysql;
mysql>update user set host = '%' where user = 'root';
mysql>FLUSH PRIVILEGES;
mysql>select host, user from user;
方法二：

1. 從任何主機連線到mysql伺服器
   GRANT ALL PRIVILEGES ON . TO 'root'@'%' IDENTIFIED BY 'password' WITH GRANT OPTION;
   FLUSH PRIVILEGES;
   2)只允許使用者root從ip為192.168.x.x的主機連線到mysql伺服器，並使用password作為密碼
   GRANT ALL PRIVILEGES ON . TO 'root'@'192.168.x.x' IDENTIFIED BY 'password' WITH GRANT OPTION;
   FLUSH PRIVILEGES;
   如果你想允許使用者root從ip為192.168.x.x'的主機連線到mysql伺服器的某個資料庫，並使用password作為密碼
   GRANT ALL PRIVILEGES ON 資料庫名.* TO 'root'@'192.168.x.x' IDENTIFIED BY 'password' WITH GRANT OPTION;
   FLUSH PRIVILEGES;