centos-mirrors

http://mirrors.aliyun.com/centos/7.2.1511/os/x86_64/Packages/

http://mirrors.aliyun.com/centos/7.2.1511/extras/x86_64/Packages/

当mirror失效后用

http://vault.centos.org/centos/7.2.1511/extras/x86_64/Packages/

http://vault.centos.org/7.2.1511/os/x86_64/Packages/