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DNS and BIND - DNS Querying with BIND Utilities

Name service queries are essential in retrieving information stored in DNS records. We will be using the tools in the bind-utils package to perform these requests. In this video, we will perform name service queries using the `host`, `nslookup`, and `dig` commands.

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Lab Info
Level
Beginner
Last updated
Aug 06, 2025
Duration
15m

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Table of Contents
  1. Challenge

    Install the bind-utils Package and Start Named
    $ yum install bind-utils -y
    
  2. Challenge

    Display the Name Servers for the Domain google.com Using the host Command
    $ host -t ns google.com
    
  3. Challenge

    Use the host Command to Display the Mail Servers Configured for google.com
    $ host -t mx google.com
    
  4. Challenge

    Resolve the IP Address for ns4.google.com Using the nslookup Command
    nslookup ns4.google.com
    
  5. Challenge

    Using the nslookup Command, List the Name Servers for google.com
    $ nslookup -type=ns google.com
    
  6. Challenge

    Use the nslookup Command to List the Mail Servers Responsible for Mail Exchange for google.com
    $ nslookup -query=mx google.com
    
  7. Challenge

    Use the Debug Mode for nslookup to Provide More Details for google.com
    $ nslookup -debug google.com
    
  8. Challenge

    Resolve the IP for google.com Using the dig Command
    $ dig google.com
    
  9. Challenge

    Use the dig Command to List the Name Servers for google.com
    $ dig ns google.com
    
  10. Challenge

    Using dig, List Only the Four NS Records for google.com
    $ dig ns google.com +noall +answer
    
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