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      Could not connect to the specified instance
      MySQL Error Number 1130
      Host '192.168.1.51' is not allowed to connect to this MySQL server
      if you want to check the net connection , please click the ping buttion
     
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root#mysql -h localhost-u mysql -p 
Enter password:    ******
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 4 to server version: 4.0.20a-debug
Type 'help;' or '\h' for help. Type '\c' to clear the buffer.
mysql> use mysql;   (´ËDB´æ·ÅMySQLµÄ¸÷ÖÖÅäÖÃÐÅÏ¢)
Database changed
mysql> select host,user from user; (²é¿´Óû§µÄȨÏÞÇé¿ö)
+-------------+-------+
| host            | user    |
+-------------+-------+
| localhost      |           |
| localhost      | root   |
| localhost      |           |
| localhost      | mysql |
+-------------+-------+
6 rows in set (0.02 sec)
 
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mysql> Grant all privileges on *.* to 'root'@'%' identified by ‘password’ with grant option;
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