I've come across Red Hat allot lately and am wondering if I need to get studying. I'm an avid Ubuntu server user but don't want to get stuck only knowing one distro.
What is the way to go if i want to know as much as I can for use in real world situations.
Personal take: RHEL is a very high quality well integrated OS. Debian is a mess of community opinion all conflicting held together by outdated and poor tooling.