centos6.8 Installation Enabled Epel

EPEL (Enterprise Linux Add-on) is a special interest group created, maintained, and managed for Red Hat Enterprise Linux (RHEL) and its derivative distributions (such as CentOS, Scientific Linux, Oracle Enterprise Linux ) provides high-quality additional packages. EPEL packages typically do not conflict with packages in the official Linux source, or replace files with each other.
epel_rpm Package Download

Installation Method
1.yum Installation

$ yum Install Epel-release-y

CentOS users can install and enable EPEL feeds directly from Yum. CentOS Extras contains the package by default. CentOS-6.8 is the latest version installed through Yum.

2.RPM Package Installation (/USR/LOCAL/SRC directory)

$ wget http://dl.fedoraproject.org/pub/epel/epel-release-latest-6.noarch.rpm
$ rpm-ivh epel-release-latest-6.noarch.rpm

The installation is complete and you can see if the Epel source exists through Yum repolist.
If there is an error as shown below, import rpm-gpg-key-epel-6.

$ wget http://dl.fedoraproject.org/pub/epel/RPM-GPG-KEY-EPEL-6
$ mv rpm-gpg-key-epel-6/etc/pki/rpm-gpg/
$ RPM--import/etc/pki/rpm-gpg/rpm-gpg-key-epel-6

If there is a mistake, also hope to point out, thank you.