/etc/yum.repos.d/CentOS-Base.repo

[ base ]
name = CentOS- 5  - Base
repo = os
baseurl = http://ftp.sjtu.edu.cn/centos/ 5 /os/$basearch/
gpgcheck = 1
gpgkey = http://ftp.sjtu.edu.cn/centos/RPM-GPG-KEY-CentOS-5

#released updates
 [ update ]
name = CentOS- 5  - Updates
baseurl = http://ftp.sjtu.edu.cn/centos/ 5 /updates/$basearch/
gpgcheck = 1
gpgkey =http://ftp.sjtu.edu.cn/centos/RPM-GPG-KEY-CentOS-5

#packages used/produced in the build but not released
 [ addons ]
name = CentOS- 5  - Addons
baseurl = http://ftp.sjtu.edu.cn/centos/ 5 /addons/$basearch/
gpgcheck = 1
gpgkey = http://ftp.sjtu.edu.cn/centos/RPM-GPG-KEY-CentOS-5

#additional packages that may be useful
 [ extras ]
name = CentOS- 5  - Extras
baseurl = http://ftp.sjtu.edu.cn/centos/ 5 /extras/$basearch/
gpgcheck = 1
gpgkey =http://ftp.sjtu.edu.cn/centos/RPM-GPG-KEY-CentOS-5

#additional packages that extend functionality of existing packages
 [ centosplus ]
name = CentOS- 5  - Plus
baseurl = http://ftp.sjtu.edu.cn/centos/ 5 /centosplus/$basearch/
gpgcheck = 1
enabled = 0
gpgkey = http://ftp.sjtu.edu.cn/centos/RPM-GPG-KEY-CentOS-5

#contrib - packages by Centos Users
 [ contrib ]
name = CentOS- 5  - Contrib
baseurl = http://ftp.sjtu.edu.cn/centos/ 5 /contrib/$basearch/
gpgcheck = 1
enabled = 0
gpgkey =http://ftp.sjtu.edu.cn/centos/RPM-GPG-KEY-CentOS-5