How to Create and Configure Local Repository On Red Hat Enterprise Linux 8/8.2 using a RHEL 8.2 DVD
A software repository or “repo” is a central location for keeping and maintaining RPM software packages for Redhat Linux distribution, from which users can download and install packages on their Linux servers.
Repositories are generally stored on a public network, which can be accessed by multiple users on the internet. However, you can create your own local repository on your server and access it as a single user or allow access to other machines on your local LAN (Local Area Network) using HTTP web server.
The advantage of creating a local repository is that you don’t require an internet connection to install software packages or updates.
YUM (Yellowdog Updater Modified) or DNF (Dandified YUM) is a widely used software package management utility for RPM (RedHat Package Manager) based Linux systems, which makes software installation easy on Red Hat/CentOS Linux.