給mysql賦予連接的權限

mysql服務器裝好以後，默認只能在localhost上登錄，如果你要是從另外的IP地址登錄，即使是本機登錄也會出現問題。

mysql -h 192.168.2.48 -u root -pwow8;
ERROR 1130 (00000): Host '192.168.2.48' is not allowed to connect to this MySQL server

查看mysql手冊，1130表示如下

·        錯誤：1130 SQLSTATE: HY000 (ER_HOST_NOT_PRIVILEGED)

消息：不允許將主機'%s'連接到該MySQL服務器。

所以需要在mysql服務器上打開相應的權限，下面幾步可以是root用戶在所有的機器上以wow8登錄

[zhoulei@localhost ~]$ mysql -u root;
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 13
Server version: 5.1.59-log Source distribution

Type 'help;' or '\h' for help. Type '\c' to clear the buffer.

mysql> GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY 'wow8' WITH GRANT OPTION;
Query OK, 0 rows affected (0.00 sec)

mysql> FLUSH   PRIVILEGES;  
Query OK, 0 rows affected (0.00 sec)

mysql> quit;
Bye