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Configuring Networking in RHEL 9

In this lab, you’ll practice setting up Linux networking, managing networking services, and also setting up and configuring caching DNS.

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Path Info

Rating
(18 reviews)
Level
Clock icon Beginner
Duration
Clock icon 1h 0m
Last updated
Clock icon Aug 04, 2025

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Table of Contents

  1. Challenge

    Get Started in the Lab Environment

    Here are the initial instructions and explanation of the lab environment. Read this while your environment is busy creating itself from nothing. Yes, this violates physics; we know. How fun!

  2. Challenge

    Configure Static and Dynamic Networking

    To start the lab, you configure both static and dynamic networking using nmcli (NetworkManager Command Line Interface). This includes assigning a static IP address to a network interface, and configuring DHCP for automatic IP address assignment. You will verify connectivity using the ping and traceroute commands.

  3. Challenge

    Manage Network Services and Firewalls

    You'll learn how to manage network services and firewalls by enabling and disabling network interfaces, allowing and blocking ports using firewall-cmd, and configuring firewall zones for enhanced security.

  4. Challenge

    Configure DNS and Hostname Resolution

    Finally, you will learn how to configure DNS and hostname resolution by modifying /etc/hosts and /etc/resolv.conf, and troubleshooting DNS issues using tools like dig and nslookup.

  5. Challenge

    The Last Challenge

    Welcome to the final challenge! This is your last chance to experiment in the environment. Clicking Finish Lab will end this little world that flittered into existence just for you.

Obinna Amalu - Labs - Obinna
Author
Obinna Amalu

Obinna Amalu is a Tech Leader with 20+ years of experience training and being hands-on with technology. He enjoys mentoring and public speaking.

What's a lab?

Hands-on Labs are real environments created by industry experts to help you learn. These environments help you gain knowledge and experience, practice without compromising your system, test without risk, destroy without fear, and let you learn from your mistakes. Hands-on Labs: practice your skills before delivering in the real world.

Provided environment for hands-on practice

We will provide the credentials and environment necessary for you to practice right within your browser.

Guided walkthrough

Follow along with the author’s guided walkthrough and build something new in your provided environment!

Did you know?

On average, you retain 75% more of your learning if you get time for practice.
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