Querying DNS Client Configuration from the Command Line

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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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Lab Info

Level

Beginner

Last updated

Jul 14, 2025

Duration

45m

Challenge

Determine the Configured DNS Host

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

Test Connectivity to www.acloudguru.com

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

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