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Querying DNS Client Configuration from the Command Line

Knowing how to locate DNS information, and how to perform queries using the configured DNS host (as well as other hosts), is a useful skill. In this hands-on lab, we’ll verify the network DNS configuration settings and perform several DNS queries.

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Path Info

Level
Clock icon Beginner
Duration
Clock icon 45m
Published
Clock icon Jul 17, 2019

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Table of Contents

  1. Challenge

    Determine the Configured DNS Host

    Determine the Configured DNS Host by checking the /etc/resolv.conf file.

  2. Challenge

    Perform a DNS Lookup on www.acloudguru.com Using the Configured DNS Host

    Utilize the host and dig commands to query www.acloudguru.com and observe the results.

  3. Challenge

    Perform a DNS Lookup of www.acloudguru.com Using Another DNS Host

    Utilize the host and dig commands to query www.acloudguru.com utilizing another DNS host and observe the results. Note: The DNS host for CloudFlare (1.1.1.1) was used as an example, but you can also use Google DNS (8.8.8.8 or 8.8.4.4).

  4. Challenge

    Test Connectivity to www.acloudguru.com

    Utilize the ping and curl commands to test connectivity to www.acloudguru.com and observe the results.

A Cloud Guru - Labs - Querying DNS Client Configuration from the Command Line
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!

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