Chapter 7: Adding, Patching, and Managing Software

Maintaining a system's software, to close security issues, apply fixes, and keep the system up to date is an essential task in systems management. In this chapter, we will review how the Red Hat Subscription Management system works, how to ensure that packages are verified, and other software management tasks to keep the system fresh.

Going a bit more into the details, in this chapter, we will go over how the subscription system works and how to use your developer subscription for self-training or installing a personal server. We will also check how to manage the software origins, also known as repositories, that your system will use. That includes learning the role of signatures in package management, to ensure the software installed is the one Red Hat provides. We will also learn about key tasks such as adding and removing packages and package groups, using different software versions with modularity, and reviewing and rolling...