Red Hat Enterprise Linux, CentOS, Fedora and other Linux distributions based on RHEL all use YUM as a package management system to install, remove, and update software. Each distribution has its own main repository, but you can also install or remove third-party repositories whenever you like.
To add a YUM repository, type as root:
yum-config-manager –add-repo repository_url
yum-config-manager –add-repo http://www.serverschool.com/serverschool.repo
And the output will look like:
Loaded plugins: product-id, refresh-packagekit, subscription-manager
adding repo from: http://www.serverschool.com/serverschool.repo
grabbing file http://www.serverschool.com/serverschool.repo to /etc/yum.repos.d/serverschool.repo
serverschool.repo | 413 B 00:00
repo saved to /etc/yum.repos.d/serverschool.repo
You can then enable the repository with:
yum-config-manager –enable serverschool
To disable a respository:
yum-config-manager disable serverschool
For more information about repository management with YUM, see this Red Hat documentation.