CentOS 6.5可使用的yum mirror代理源

遗留原因，有些系统不得不继续使用CentOS 6，但是官方源已不再维护，下面提供一个可用的源。

1. 使用以下内容填充这个文件 /etc/yum.repos.d/CentOS-Base.repo

   [C6.5-base]
   name=CentOS-6.5 - Base
   baseurl=http://linuxsoft.cern.ch/centos-vault/6.5/os/$basearch/
   gpgcheck=1
   gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6
   enabled=1
   metadata_expire=never
   
   [C6.5-updates]
   name=CentOS-6.5 - Updates
   baseurl=http://linuxsoft.cern.ch/centos-vault/6.5/updates/$basearch/
   gpgcheck=1
   gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6
   enabled=1
   metadata_expire=never
   
   [C6.5-extras]
   name=CentOS-6.5 - Extras
   baseurl=http://linuxsoft.cern.ch/centos-vault/6.5/extras/$basearch/
   gpgcheck=1
   gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6
   enabled=1
   metadata_expire=never
   
   [C6.5-contrib]
   name=CentOS-6.5 - Contrib
   baseurl=http://linuxsoft.cern.ch/centos-vault/6.5/contrib/$basearch/
   gpgcheck=1
   gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6
   enabled=0
   metadata_expire=never
   
   [C6.5-centosplus]
   name=CentOS-6.5 - CentOSPlus
   baseurl=http://linuxsoft.cern.ch/centos-vault/6.5/centosplus/$basearch/
   gpgcheck=1
   gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6
   enabled=0
   metadata_expire=never
   

2. 清理yum缓存并重新生成缓存

   yum clean all
   yum makecache