CentOS6由于已经停止维护更新，国内所有的镜像源已经停止提供，网上找了很多资料，终于可以正常使用yum了，记录下来以供大家参考。

1、更换/etc/yum.repos.d/CentOS-Base.repo 

     我的系统为6.4，所以目录版本号为6.4

 

[base]

name=CentOS-6.4 - Base - mirrors.aliyun.com

failovermethod=priority

baseurl=http://mirrors.aliyun.com/centos-vault/6.4/os/$basearch/

gpgcheck=1

gpgkey=http://mirrors.aliyun.com/centos-vault/RPM-GPG-KEY-CentOS-6

#released updates

[updates]

name=CentOS-6.4 - Updates - mirrors.aliyun.com

failovermethod=priority

baseurl=http://mirrors.aliyun.com/centos-vault/6.4/updates/$basearch/

gpgcheck=1

gpgkey=http://mirrors.aliyun.com/centos-vault/RPM-GPG-KEY-CentOS-6

#additional packages that may be useful

[extras]

name=CentOS-6.4 - Extras - mirrors.aliyun.com

failovermethod=priority

baseurl=http://mirrors.aliyun.com/centos-vault/6.4/extras/$basearch/

gpgcheck=1

gpgkey=http://mirrors.aliyun.com/centos-vault/RPM-GPG-KEY-CentOS-6

#additional packages that extend functionality of existing packages

[centosplus]

name=CentOS-6.4 - Plus - mirrors.aliyun.com

failovermethod=priority

baseurl=http://mirrors.aliyun.com/centos-vault/6.4/centosplus/$basearch/

gpgcheck=1

enabled=0

gpgkey=http://mirrors.aliyun.com/centos-vault/RPM-GPG-KEY-CentOS-6

#contrib - packages by Centos Users

[contrib]

name=CentOS-6.4 - Contrib - mirrors.aliyun.com

failovermethod=priority

baseurl=http://mirrors.aliyun.com/centos-vault/6.4/contrib/$basearch/

gpgcheck=1

enabled=0

gpgkey=http://mirrors.aliyun.com/centos-vault/RPM-GPG-KEY-CentOS-6

2、使用以上配置后，还需要更换/etc/yum.repos.d/epel-6.repl   

    用于解决当使用yum install 时出现 repodata/repomd.xml: [Errno 12] Timeout 的问题：

repo.webtatic.com 目前还可以使用

[epel]
name=Extra Packages for Enterprise Linux 6 - $basearch
baseurl=http://repo.webtatic.com/yum/el6/$basearch
#mirrorlist=https://mirrors.fedoraproject.org/metalink?repo=epel-6&arch=$basearch
failovermethod=priority
enabled=1
gpgcheck=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-6

[epel-debuginfo]
name=Extra Packages for Enterprise Linux 6 - $basearch - Debug
baseurl=http://repo.webtatic.com/yum/el6/$basearch/debug
#mirrorlist=https://mirrors.fedoraproject.org/metalink?repo=epel-debug-6&arch=$basearch
failovermethod=priority
enabled=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-6
gpgcheck=0

[epel-source]
name=Extra Packages for Enterprise Linux 6 - $basearch - Source
baseurl=http://mirrors.aliyun.com/epel/6/SRPMS
        http://mirrors.aliyuncs.com/epel/6/SRPMS
#mirrorlist=https://mirrors.fedoraproject.org/metalink?repo=epel-source-6&arch=$basearch
failovermethod=priority
enabled=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-6
gpgcheck=0

3、php环境配置

     

/*用于查看可用的php包*/
yum list php* 

/*安装php*/

yum install php55w php55w-mysql  php55w-gd

yum list php* 显示的可以扩展