Red Hat is usually referred to as RHEL + a version number. Kickstart is a way to answer the innumerable questions during an installation of RHEL, before the installation starts. This way no one needs to sit in front of the monitor to answer questions, for what seems like an interminable duration.
Once the kickstart file is made, you can leave the PC alone, and it will have all the answers it needs in the kickstart file. Here's a link:
You could also use Fedora with kickstart installs.