连接mysql数据库报错解决方法_MySQL

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连接mysql数据库报错解决方法

1.mysql 错误 ERROR 2003 (HY000): Can't connect to MySQL server on 'localhost'

解决办法：关闭防火墙，linux下命令

[root@etl01 bin]# chkconfig --list | grep -i iptables ====check fire wall

iptables 0:off 1:off 2:on 3:on 4:on 5:on 6:off

[root@etl01 bin]# /sbin/service iptables stop ====stop fire wall

Flushing firewall rules: [ OK ]

Setting chains to policy ACCEPT: nat filter [ OK ]

Unloading iptables modules: [ OK ]

2.报错:1130-host ... is not allowed to connect to this MySql server

解决办法：

授权形式

比如账户为root,密码为root

use mysql;

用root账户从任何主机*问mysql数据库了

GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY 'root' WITH GRANT OPTION;

如果你想允许用户zz从ip为192.168.1.3的主机连接到mysql服务器，并使用123456作为密码

GRANT ALL PRIVILEGES ON *.* TO 'root'@'192.168.1.3' IDENTIFIED BY '123456' WITH GRANT OPTION;

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