What Linux is RedHat based on?

Related questions

1. Is Red Hat an operating system?
2. How much does a RHEL license cost?
3. What exactly does Red Hat do?
4. Is Redhat free to use?
5. What do Red Hat ladies do?
6. Is Redhat Linux free?
7. Is redhat free for personal use?
8. Does CentOS have a GUI?
9. Is Red Hat Linux still used?
10. Which one is better CentOS or Ubuntu?

Tags

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2. #redhat
3. #oracle
4. #ubuntu
5. #number
6. #variant
7. #mother
8. #linux
9. #distribution
10. #fedora
11. #around
12. #distro
13. #developed
14. #those
15. #debian
16. #truly
17. #centos