rpmforge又名repoforge，是CentOS官方推荐的第三方yum源。提供超过5000种rpm格式的软件包，其中包括vlc、mplayer、xmms-mp3等流行的多媒体工具。
C7:
wgethttp://repository.it4i.cz/mirrors/repoforge/redhat/el7/en/x86_64/rpmforge/RPMS/rpmforge-release-0.5.3-1.el7.rf.x86_64.rpm rpm-ivhrpmforge-release-0.5.3-1.el7.rf.x86_64.rpm
C6:
i386 wgethttp://repository.it4i.cz/mirrors/repoforge/redhat/el6/en/i386/rpmforge/RPMS/rpmforge-release-0.5.3-1.el6.rf.i686.rpm rpm-ivhrpmforge-release-0.5.3-1.el6.rf.i686.rpm x86_64 wgethttp://repository.it4i.cz/mirrors/repoforge/redhat/el6/en/x86_64/rpmforge/RPMS/rpmforge-release-0.5.3-1.el6.rf.x86_64.rpm rpm-ivhrpmforge-release-0.5.3-1.el6.rf.x86_64.rpm
C5:
i386 wgethttp://repository.it4i.cz/mirrors/repoforge/redhat/el5/en/i386/rpmforge/RPMS/rpmforge-release-0.5.3-1.el5.rf.i386.rpm rpm-ivhrpmforge-release-0.5.3-1.el5.rf.i386.rpm x86_64 wgethttp://repository.it4i.cz/mirrors/repoforge/redhat/el5/en/x86_64/rpmforge/RPMS/rpmforge-release-0.5.3-1.el5.rf.x86_64.rpm rpm-ivhrpmforge-release-0.5.3-1.el5.rf.x86_64.rpm ppc wgethttp://repository.it4i.cz/mirrors/repoforge/redhat/el5/en/ppc/rpmforge/RPMS/rpmforge-release-0.5.1-1.el5.rf.ppc.rpm rpm-ivhrpmforge-release-0.5.1-1.el5.rf.ppc.rpm
上面这些rpm包的地址都可以到https://pkgs.org网站中直接搜索相应的rpm包即可，如：直接搜索rpmforge或者epel，找到合适的rpm包后下载即可
验证安装：
[root@localhost~]#yumrepolist Loadedplugins:fastestmirror Loadingmirrorspeedsfromcachedhostfile *base:mirrors.aliyun.com *extras:mirrors.aliyun.com *rpmforge:ftp.kddilabs.jp *updates:mirrors.aliyun.com repoidreponamestatus baseCentOS-6-Base-mirrors.aliyun.com6,706 extrasCentOS-6-Extras-mirrors.aliyun.com46 rpmforgeRHEL6-RPMforge.net-dag4,718 updatesCentOS-6-Updates-mirrors.aliyun.com721 repolist:12,191
使用RPMforge(Repoforge)源查找mplayer
[root@localhost~]#yum--enablerepo=rpmforgeinfomplayer Loadedplugins:fastestmirror Loadingmirrorspeedsfromcachedhostfile *base:mirrors.aliyun.com *extras:mirrors.aliyun.com *rpmforge:mirrors.tuna.tsinghua.edu.cn *updates:mirrors.aliyun.com AvailablePackages Name:mplayer Arch:x86_64 Version:1.0 Release:0.48.svn20100703.el6.rf Size:4.0M Repo:rpmforge Summary:MPlayer,theMoviePlayerforLinux URL:http://mplayerhq.hu/ License:GPL Description:MPlayerisamultimediaplayer.ItplaysmostvideoformatsaswellasDVDs. :Itsbigfeatureisthewiderangeofsupportedoutputdrivers.Therearealso :niceantialiasedshadedsubtitlesandOSD. : :Onx86,additionalWin32binarycodecsshouldbeaddedto/usr/lib64/codecs/. : :Availablerpmbuildrebuildoptions: :--with:dvdread :--without:aaliblirccdparanoiaartsxvidesdlzofamecacadvbvstream :theoraosdmenugcccheckfribidixvmcx264faacmpcliveladspa :amrnbsambaspeextwolame
安装mplayer:
[root@localhost~]#yuminstallmplayer
禁用RPMforge(Repoforge)源：
[root@localhost~]#vi/etc/yum.repos.d/rpmforge.repo 将enabled=1选项改为enabled=0。
参考：
http://repoforge.org/use/
https://pkgs.org/
http://quenywell.com/how-to-set-up-rpmforge-repoforge-repository-on-rhel-centos/