vi /etc/yum.repos.d/Dag.repo###定义第三方源 

[dag] 
name=Dag RPM Repository for Red Hat Enterprise Linux 
baseurl=http://apt.sw.be/redhat/el$releasever/en/$basearch/dag 
http://rh-mirror.linux.iastate.edu/pub/dag/redhat/el$releasever/en/$basearch/dag 
http://wftp.tu-chemnitz.de/pub/linux/dag/redhat/el$releasever/en/$basearch/dag 
http://archive.cs.uu.nl/mirror/dag.wieers/redhat/el$releasever/en/$basearch/dag 
http://apt.sw.be/redhat/el$releasever/en/$basearch/dag 
http://mirror.cpsc.ucalgary.ca/mirror/dag/redhat/el$releasever/en/$basearch/dag 
http://rpmfind.net/linux/dag/redhat/el$releasever/en/$basearch/dag 
http://ftp.riken.jp/Linux/dag/redhat/el$releasever/en/$basearch/dag 
http://mirrors.ircam.fr/pub/dag/redhat/el$releasever/en/$basearch/dag 
gpgcheck=0 
enabled=1 
protect=0 
gpgcheck=1 
gpgkey=http://dag.wieers.com/packages/RPM-GPG-KEY.dag.txt 
################################################## 
 
vi utterramblings.repo ###定义php独立源 
 
name=Jason's Utter Ramblings Repo 
baseurl=http://www.jasonlitka.com/media/EL$releasever/$basearch/     
enabled=1     
gpgcheck=1     
gpgkey=http://www.jasonlitka.com/media/RPM-GPG-KEY-jlitka 
#########################################################################