在centos中php 在连接mysql的时候,出现Can't connect to MySQL server on 'XXX' (13)

原文连接:http://hi.baidu.com/zwfec/item/64ef5ed9bf1cb3feca0c397c

红色的是命令

SQLSTATE[HY000] [2003] Can't connect to MySQL server on 'XXX' (13)

我可以真见识了 SELinux 的利害了, 这个问题让我找了好长时间的原因:

结果是 SELinux 不让 httpd 访问外网,昨天安装 Chrome 浏览器,结果不让 在根帐号下运行 .....

SQLSTATE[HY000] [2003] Can't connect to MySQL server on 'XXX' (13)

解决方法:

Selinux 的设置 Can't connect to MySQL (13)



通过php的mysql_connect('localhost','usr','pass')连接本地数据库成功
但是,mysql_connect('127.0.0.1:3306','usr','pass')出现
can't connect to MySQL server using '' (13)的错误
原因:
# getsebool -a | grep httpd
[neo@neo phpMyTest]$ getsebool -a | grep httpd
allow_httpd_anon_write --> off
allow_httpd_mod_auth_ntlm_winbind --> off
allow_httpd_mod_auth_pam --> off
allow_httpd_sys_script_anon_write --> off
httpd_builtin_scripting --> on
httpd_can_check_spam --> off
httpd_can_network_connect --> off
httpd_can_network_connect_cobbler --> off
httpd_can_network_connect_db --> off
httpd_can_network_memcache --> off
httpd_can_network_relay --> off
httpd_can_sendmail --> off
httpd_dbus_avahi --> on
httpd_enable_cgi --> on
httpd_enable_ftp_server --> off
httpd_enable_homedirs --> off
httpd_execmem --> off
httpd_read_user_content --> off
httpd_setrlimit --> off
httpd_ssi_exec --> off
httpd_tmp_exec --> off
httpd_tty_comm --> on
httpd_unified --> off
httpd_use_cifs --> off
httpd_use_gpg --> off
httpd_use_nfs --> off

发现 httpd_can_network_connect --> off

解决方案:

#setsebool httpd_can_network_connect 1

 

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Linux服务器下Can't connect to MySQL server on '' (10060) (转)

 

原始地址:http://bbs.chinaunix.net/viewthread.php?tid=1344552

远程连接服务器出现以上错误,解决后做了下总结,如有不正之处,请指正。

主要有三个原因:
1、mysql授权表里没有远程机器的权限,及需要在授权表mysql.user添加
grant all privileges on *.* to 'root'@'远程登陆IP' identified by '远程登陆密码'
flush privileges;


2、网络不通,这个就不说了。

3、防火墙禁止3306端口,以iptable为例
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:  iptables设置
1) 重启后生效 
开启: chkconfig iptables on 
关闭: chkconfig iptables off 

2) 即时生效,重启后失效 
开启: service iptables start 
关闭: service iptables stop

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