RedHat company releases 2 versions of OS - Fedora a general purpose OS and Red Hat Enterprise Linux or RHEL for enterprise users. RHEL is a light weight OS that only has a subset of features that are available in Fedora.
So to make it convenient to add packages a special interest group called Extra Packages for Enterprise Linux (EPEL) was created one that provides a set of additional packages for RHEL from Fedora sources.
Connect to server remotely via SSH or open terminal if in server
1) Install EPEL
2) Refresh repolist
yum install epel-release yum repolist
Once package is installed we can use yum to install specific packages in EPEL
yum install PkgfromEPEL