北京交大yum

[base]

name=CentOS-$releasever - Base

#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=os&infra=$infra

baseurl=http://mirror.bjtu.edu.cn/centos/$releasever/os/$basearch/

gpgcheck=

gpgkey=http://mirror.bjtu.edu.cn/centos/RPM-GPG-KEY-CentOS-6

#released updates

[updates]

name=CentOS-$releasever - Updates

#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=updates&infra=$infra

baseurl=http://mirror.bjtu.edu.cn/centos/$releasever/updates/$basearch/

gpgcheck=

gpgkey=http://mirror.bjtu.edu.cn/centos/RPM-GPG-KEY-CentOS-6

#additional packages that may be useful

[extras]
name=CentOS-$releasever - Extras

#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=extras&infra=$infra

baseurl=http://mirror.bjtu.edu.cn/centos/$releasever/extras/$basearch/

gpgcheck=

gpgkey=http://mirror.bjtu.edu.cn/centos/RPM-GPG-KEY-CentOS-6

#additional packages that extend functionality of existing packages
[centosplus]

name=CentOS-$releasever - Plus

#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=centosplus&infra=$infra

baseurl=http://mirror.bjtu.edu.cn/centos/$releasever/centosplus/$basearch/

gpgcheck=

enabled=

gpgkey=http://mirror.bjtu.edu.cn/centos/RPM-GPG-KEY-CentOS-6
#contrib - packages by Centos Users

[contrib]

name=CentOS-$releasever - Contrib

#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=contrib&infra=$infra

baseurl=http://mirror.bjtu.edu.cn/centos/$releasever/contrib/$basearch/

gpgcheck=

enabled=

gpgkey=http://mirror.bjtu.edu.cn/centos/RPM-GPG-KEY-CentOS-6

在/etc/yum.repos.d/CentOS-Base.repo，文件中修改，注意拷贝一份，以防万一

校验Key导入：rpm --import http://mirror.bjtu.edu.cn/centos/6.7/os/x86_64/RPM-GPG-KEY-CentOS-6

更新：yum update