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Red Hat Enterprise Linux 8 Administration

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

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Product type Paperback
Published in Nov 2021
Publisher Packt
ISBN-13 9781800569829
Length 534 pages
Edition 1st Edition
Tools
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Authors (3):
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Scott McCarty Scott McCarty
Author Profile Icon Scott McCarty
Scott McCarty
Pablo Iranzo Gómez Pablo Iranzo Gómez
Author Profile Icon Pablo Iranzo Gómez
Pablo Iranzo Gómez
Miguel Pérez Colino Miguel Pérez Colino
Author Profile Icon Miguel Pérez Colino
Miguel Pérez Colino
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Toc

Table of Contents (25) Chapters Close

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

Chapter 6: Enabling Network Connectivity

When we installed our system in the first chapter, we enabled the network interface. However, network configuration is, or can be, even more than that.

A server connected to a network might require additional interfaces for configuring other networks; for example, for reaching backup servers, performing internal services from other servers, or even accessing storage that is not presented directly via a Storage Array Network (SAN) as local drives but as, for example, Internet Small Computer System Interface (iSCSI) drives.

Additionally, a server might use redundant network capabilities to ensure that, in the event of a failure in one of the cards, switches, and so on, the server can still be reached and perform properly.

In this chapter, we will learn about how to define network configuration for our RHEL machine using different methods and perform some basic network troubleshooting.

This knowledge will be key since servers are commonly...

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