CentOS 6.x和CentOS 7安裝RPMforge
從官網http://repoforge.org鏈接到http://wiki.centos.org/AdditionalResources/Repositories/RPMForge，沒有CentOS 7的鏈接，觀察CentOS 4、5、6的鏈接的規律，猜測CentOS 7的包名為rpmforge-release-0.5.3-1.el7.rf.x86_64.rpm。
rpm --import http://apt.sw.be/RPM-GPG-KEY.dag.txt
rpm -K rpmforge-release-0.5.3-1.el7.rf.x86_64.rpm
rpm -i rpmforge-release-0.5.3-1.el7.rf.x86_64.rpmrpmforge的repo文件已經在目錄/etc/yum.repos.d/下，禁掉rmpforge的repo：
enabled = 0
yum install * --enablerepo=rpmforge
done! ^_^
更多CentOS相關信息見CentOS 專題頁面 http://www.linuxidc.com/topicnews.aspx?tid=14
