You're reading from Red Hat Enterprise Linux 8 Administration Master Linux administration skills and prepare for the RHCSA certification exam

Product type Paperback

Published in Nov 2021

Publisher Packt

ISBN-13 9781800569829

Length 534 pages

Edition 1st Edition

Tools

Linux

Concepts

System Administration

Authors (3):

Scott McCarty

Pablo Iranzo Gómez

Miguel Pérez Colino

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Table of Contents (25) Chapters

Preface

1. Section 1: Systems Administration – Software, User, Network, and Services Management

2. Chapter 1: Installing RHEL8 FREE CHAPTER

3. Chapter 2: RHEL8 Advanced Installation Options

4. Chapter 3: Basic Commands and Simple Shell Scripts

5. Chapter 4: Tools for Regular Operations

6. Chapter 5: Securing Systems with Users, Groups, and Permissions

7. Chapter 6: Enabling Network Connectivity

8. Chapter 7: Adding, Patching, and Managing Software

9. Section 2: Security with SSH, SELinux, a Firewall, and System Permissions

10. Chapter 8: Administering Systems Remotely

11. Chapter 9: Securing Network Connectivity with firewalld

12. Chapter 10: Keeping Your System Hardened with SELinux

13. Chapter 11:System Security Profiles with OpenSCAP

14. Section 3: Resource Administration – Storage, Boot Process, Tuning, and Containers

15. Chapter 12: Managing Local Storage and Filesystems

16. Chapter 13: Flexible Storage Management with LVM

17. Chapter 14: Advanced Storage Management with Stratis and VDO

18. Chapter 15: Understanding the Boot Process

19. Chapter 16: Kernel Tuning and Managing Performance Profiles with tuned

20. Chapter 17: Managing Containers with Podman, Buildah, and Skopeo

21. Section 4: Practical Exercises

22. Chapter 18: Practice Exercises – 1

23. Chapter 19: Practice Exercise – 2

24. Other Books You May Enjoy

Managing repositories and signatures with YUM/DNF

RHEL like many other Linux distributions, has a mechanism to provide software based on repos. These contain a list of software packages (which could be end user applications such as Firefox, or components for them such as GTK3), a list of dependencies between the packages, and other useful metadata.

Once we finish subscribing the system, we can take a look at the repositories available in the system using yum or dnf:

[root@rhel8 ~]# yum repolist
Updating Subscription Management repositories.
repo id                              repo name
rhel-8-for-x86_64-appstream-rpms     Red Hat Enterprise Linux 8 for x86_64 - AppStream (RPMs)
rhel-8-for-x86_64-baseos-rpms        Red Hat Enterprise Linux 8 for x86_64 - BaseOS (RPMs...

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You're reading from Red Hat Enterprise Linux 8 Administration Master Linux administration skills and prepare for the RHCSA certification exam

Table of Contents (25) Chapters

Managing repositories and signatures with YUM/DNF

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Authors (3)

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