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Can't connect to MySQL server on '' (10060)

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1¡¢mysqlÊÚȨ±íÀïûÓÐÔ¶³Ì»úÆ÷µÄȨÏÞ£¬¼°ÐèÒªÔÚÊÚȨ±ímysql.userÌí¼Ó
grant all privileges on *.* to 'root'@'Ô¶³ÌµÇ½IP' identified by 'Ô¶³ÌµÇ½ÃÜÂë'
flush privileges;
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3¡¢·À»ðǽ½ûÖ¹3306¶Ë¿Ú£¬ÒÔiptableΪÀý
vi /etc/sysconfig/iptables
-A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport 3306-j ACCEPT  
service iptables restart
ps:  iptablesÉèÖÃ
1) ÖØÆôºóÉúЧ
¿ªÆô£º chkconfig iptables on
¹Ø±Õ£º chkconfig iptables off
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¿ªÆô£º service iptables start
¹Ø±Õ£º service iptables stop


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<?php
$db_name="new";
mysql_connect("localhost","root","123456");
mysql_select_db($db_name);
$tb=mysql_list_tables($db_name);
$sql="";
while($query=mysql_fetch_row($tb)){
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    $sql.= get_table_fn($query[0]);
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