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Red Hat Enterprise Linux 9 Administration

You're reading from   Red Hat Enterprise Linux 9 Administration A comprehensive Linux system administration guide for RHCSA certification exam candidates

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Product type Paperback
Published in Nov 2022
Publisher Packt
ISBN-13 9781803248806
Length 530 pages
Edition 2nd Edition
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Authors (4):
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Scott McCarty Scott McCarty
Author Profile Icon Scott McCarty
Scott McCarty
Miguel Pérez Colino Miguel Pérez Colino
Author Profile Icon Miguel Pérez Colino
Miguel Pérez Colino
Pedro Ibañez Requena Pedro Ibañez Requena
Author Profile Icon Pedro Ibañez Requena
Pedro Ibañez Requena
Pablo Iranzo Gómez Pablo Iranzo Gómez
Author Profile Icon Pablo Iranzo Gómez
Pablo Iranzo Gómez
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Toc

Table of Contents (26) Chapters Close

Preface 1. Part 1 – Systems Administration – Software, User, Network, and Services Management
2. Chapter 1: Getting RHEL Up and Running FREE CHAPTER 3. Chapter 2: RHEL 9 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. Part 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. Part 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. Part 4 – Practical Exercises
22. Chapter 18: Practice Exercises – 1 23. Chapter 19: Practice Exercise – 2 24. Index 25. Other Books You May Enjoy

Automating RHEL deployments with Anaconda

Once you have finished your first deployment of RHEL locally, you can log in as root on the machine and list the files that the root user has in their folder, as follows:

[root@rhel-instance ~]# ls /root/
anaconda-ks.cfg

You will find the anaconda-ks.cfg file. This is an important file, called a kickstart file, and it contains the responses given to the installer, Anaconda, during the installation process. Let’s review the content of this file.

Important Note

In cloud images, there is no anaconda-ks.cfg file.

This file can be reused to install other systems with the same options as the ones we used for this installation. Let’s review the options that we added during our previous installation.

Lines starting with # are comments and have no effect on the installation process.

The comment specifying the version that is being used is shown here:

#version=RHEL9

Then, a type of installation was performed....

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