epel 源:
centos6.x
rpm -Uvh http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm
centos7.0
rpm -Uvh http://dl.fedoraproject.org/pub/epel/7/x86_64/e/epel-release-7-5.noarch.rpm
Centos6.0/7.0 epel 源
原文：http://linuxg.blog.51cto.com/4410110/1709688
