Client systems that use yum to contact your mirror also require configuration. The yum repository configuration files are located in /etc/yum.repos.d and end with the suffix .repo. Below is an example configuration file.

[mirror]
name=Fedora Core $releasever - $basearch - Base
baseurl=http://server.mydomain.net/mirror/fedora/linux/core/$releasever/$basearch
enabled=1
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-fedora

Client systems should use a repository configuration file for each Fedora branch your mirror provides. The base distribution and released updates, for example, each require a separate configuration file.

If you want clients to use your mirror in place of the official repositories, disable the existing repositories. To do this, edit the client's file for the official repository to include the directive enabled=0. You will need root access to edit these files.

Many repositories provide their own installable RPM packages containing these configuration files. When a user installs the RPM, the new files in /etc/yum.repos.d/ reference that repository. These packages simplify the addition of new repositories for end users. Whether you use such a package yourself will depend on the number and skill set of clients your repository serves.