Lab
A Cloud Guru

Validating Network Configuration and Configuring Network Services

In this hands-on lab, you will be reviewing hostname information, name resolution, and network interfaces. Using the `hostnamectl` command, you will view and update hostname for the system. You will also add an entry to the `/etc/hosts` file and a DNS server to the default network connection, reloading the interface and cycling the service to pick up the change. Finally, you will drop a network connection and recreate it, assigning it an IPv4 address and gateway. *This course is not approved or sponsored by Red Hat.*

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Path Info

Level

Beginner

Duration

30m

Published

Dec 04, 2020

Challenge

View and Update Hostname Information
- Use hostnamectl to view hostname details.
- Set a new hostname, rh8server1, for the system.
- Set a pretty name, RH8 Lab Server, for the server.
- Confirm new values were updated using hostnamectl.
Challenge

Update Name Resolution by Adding DNS Servers and Editing the /etc/hosts File
- Add a line to the /etc/hosts file, using the local IP Address and the value rh8lab.
- Ping rh8lab to confirm hosts entry works.
- Use nmcli to view network connections.
- Add the DNS server 8.8.8.8 to the default connection, System eth0.
- Reload the interfaces and cycle the NetworkManager service to pickup the changes.
- Confirm the /etc/resolv.conf contains the new DNS server.
Challenge

Drop and Recreate the Secondary Network Connection
- Use nmcli to view network connections.
- Delete the secondary connection, Wired connection 1.
- Recreate the connection with the following details:
  - Name: New connection
  - Interface name: eth1
  - Type: ethernet
  - IP Address: 10.0.10.10/24
  - Gateway: 10.0.10.1
- Confirm the connection was created.
- Confirm the new interface has the correct IP Address.

Author

A Cloud Guru

The Cloud Content team comprises subject matter experts hyper focused on services offered by the leading cloud vendors (AWS, GCP, and Azure), as well as cloud-related technologies such as Linux and DevOps. The team is thrilled to share their knowledge to help you build modern tech solutions from the ground up, secure and optimize your environments, and so much more!

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.