第一招！
wget http://dl.fedoraproject.org/pub/ ... ease-6-8.noarch.rpm
wget http://rpms.famillecollet.com/enterprise/remi-release-6.rpm
rpm -ivh epel-release-6-8.noarch.rpm
rpm -ivh remi-release-6.rpm
完成后的设置
ls -1 /etc/yum.repos.d/epel* /etc/yum.repos.d/remi.repo
返回
/etc/yum.repos.d/epel.repo
/etc/yum.repos.d/epel-testing.repo
/etc/yum.repos.d/remi.repo
允许remi repository
vi /etc/yum.repos.d/remi.repo
编辑[remi]下的enabled选项从0设为1
[remi]
name=Les RPM de remi pour Enterprise Linux 6 - $basearch
#baseurl=http://rpms.famillecollet.com/enterprise/6/remi/$basearch/
mirrorlist=http://rpms.famillecollet.com/enterprise/6/remi/mirror
enabled=1
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-remi
第二招！
vi /etc/yum.repos.d/epel.repo
编辑[epel]下的baseurl前的#号去掉，mirrorlist前添加#号。正确配置如下：
[epel]
name=Extra Packages for Enterprise Linux 6 - $basearch
baseurl=http://download.fedoraproject.org/pub/epel/6/$basearch
#mirrorlist=https://mirrors.fedoraproject.org/metalink?repo=epel-6&arch=$basearch
failovermethod=priority
enabled=1
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-6
再运行
yum makecache
前两招不好使，第三招绝对好用目前没有我加不了epel源的机器
第三招
yum upgrade ca-certificates --disablerepo=epel
允许remi repository
yum install -y yum-utils
yum-config-manager --enable remi
再 yum makecache
ok肯定就能用yum下载软件或者运行库了。