If you're new to Red Hat and need help with the basics of the yum package manager and rpm format, you're definitely not alone. yum always ranks highly as a topic of interest in Red Hat knowledge searches.
Fortunately, there's a couple of great places to start here on the Portal if you want to familiarize yourself with yum:
If you need to dive in deeper, there's always the yum documentation.
Or if you're just looking for a quick solution to a particular problem with yum, the Groups is a great place to get an answer from our community or engineers.
If you've got any yum tips for new users, or comments on your experience with yum, let's hear them below!