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HomeDatabaseMysql TutorialPHP无法访问远程mysql的有关问题分析及解决

PHP无法访问远程mysql的问题分析及解决 首先说明,远程服务器是可远程访问的。 我遇到的问题是这样的:有A,B,C三台服务器,C为服务器,B可以用PHP成功连接上C机器的mysql,而A机器则不能连接! 可以说,肯定不是代码有什么问题,服务器上的mysql设置也是没

PHP无法访问远程mysql的问题分析及解决

首先说明,远程服务器是可远程访问的。

我遇到的问题是这样的:有A,B,C三台服务器,C为服务器,B可以用PHP成功连接上C机器的mysql,而A机器则不能连接!
可以说,肯定不是代码有什么问题,服务器上的mysql设置也是没什么问题的,因为B机器都是可以的。
肯定是A机器的设置有问题!

在网上一顿搜,各种说mysql授权问题的,以及修改php.ini的,修改防火墙的,事实上都不是这些问题导致的。
和这个页面上讨论的问题类似,但是没人给出结果,链接:http://bbs.csdn.net/topics/90284141
最后想到了SELINUX的问题,对比了下AB两台机器,果然设置不一样!估计就是它的问题,有戏!

进行了如下设置:

root下,用vim打开文件文件/etc/selinux/config
修改SELINUX的值:
#SELINUX=enforcing
SELINUX=disabled
保存并退出。
重启生效,如果不想重启,命令行输入
setenforce 0
回车,OK
此处修改参考:http://www.xiaojb.com/archives/tips/disabled-selinux.shtml

最后,连接成功,哦耶!!!

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