CentOS has a few differences from Red Hat Enterprise Linux:
- No Red Hat branding or logos.
- No access to RHN, Red Hat packages or payed support.
- Packages are not extensively tested or certified to run correctly on specific hardware.
CentOS is commonly used by businesses too cheap to pay for RHEL and by individuals pursing Red Hat Certifications.
Adding the Fedora EPEL repository to CentOS
You may want to use some packages that are unavailable in the CentOS repos. You can configure yum to use the Fedora EPEL repo:
[EPEL] name=EPEL baseurl=putURLhere enabled=1
yum clean ; yum repolist
Note: This example does not use GPG for package signing.