Centos6 官方的yum源已经关闭了，本人也尝试了很多的yum源均已失败告终

无意间发现了下面的yum源，实测可用，这里和大家分享一下

1. cd /etc/yum.repos.d/

2.vim CentOS-Base.repo 添加如下配置:

提供以下文本，方便大家保存

---------------------

[base]

name=CentOS-6.6 - Base

baseurl=http://mirrors.aliyun.com/centos-vault/6.6/os/x86_64/

gpgcheck=1

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

[updates]

name=CentOS-6.6 - Updates

baseurl=http://mirrors.aliyun.com/centos-vault/6.6/updates/x86_64/

gpgcheck=1

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

[extras]

name=CentOS-6.6 - Extras

baseurl=http://mirrors.aliyun.com/centos-vault/6.6/extras/x86_64/

gpgcheck=1

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

[centosplus]

name=CentOS-6.6 - Plus

baseurl=http://mirrors.aliyun.com/centos-vault/6.6/centosplus/x86_64/

gpgcheck=1

enabled=0

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

[contrib]

name=CentOS-6.6 - Contrib

baseurl=http://mirrors.aliyun.com/centos-vault/6.6/contrib/x86_64/

gpgcheck=1

enabled=0

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

----------------------------------

保存退出 yum clean all && yum makecache 即可

各位小伙伴，以上处理方法，希望能够帮到大家