Читать книгу Mastering Linux System Administration - Richard Blum - Страница 73

While it may seem odd to you that a company charges for its Linux distribution, Red Hat has solid reasoning and experience behind what it calls its subscription model. When you pay a subscription, besides getting the RHEL distro to run on a server and access to any of its software updates, you have access to experts.

As an example, suppose you have a mission‐critical system running RHEL. The system starts to exhibit some performance issues. Your subscription with Red Hat includes a system performance expert, who will analyze and evaluate your server configuration and then make recommendations for improvement. In addition, you can talk to RHEL security experts and get technical support at any time.

Red Hat has been using this subscription model for more than 20 years, and the popularity of this Linux distribution shows that the model works. You can find more information about the Red Hat subscription model at redhat.com.

For our purposes in this book, the CentOS distribution without a GUI will provide what is needed since our target is a headless server (see Chapter 2 for a more detailed explanation as to why a GUI is typically not used in modern server rooms). Specifically, we're using a CentOS 8 Linux distribution.

Before starting your CentOS installation, it's a good idea to review what resources are needed. This step is important in order to achieve a successful Linux distribution installation.