Learn the fundamentals of administering and managing DNS servers on Windows, Linux, and Mac machines using dig and other DNS server technologies.
- [Voiceover] From desktop support to the CTO, everyone who works in IT should have a fundamental undertanding of how DNS works. After all, the internet works because of DNS. If DNS on the internet fails, so does the information economy. For this reason, everyone who works in any capacity with technology should watch and understand this course. I've included a section on the fundamentals of DNS with helpful animations to help you visually understand some of the more difficult concepts.
But this isn't just a course on theory. In several places in the course I show you specifically how to set up DNS on a pfSense router running Bind, on a Windows 2012 R2 server running DNS Manager, and on an OS10 server in the server app. I walk you through each of the widely used record types like A Records, MX Records, CNAMEs and SRVs, as well as SPF Records and more. If you've always wanted to learn DNS, then join me now as we begin the process of demystifying the subject and practical use of DNS.
Author
Updated
1/20/2017Released
4/21/2016To begin, author Sean Colins covers the fundamentals of DNS. He then segues to more complex topics such as setting up a DNS server on Linux, Mac, and Windows and working with DNS record types, such as AAAA, MX, TX, CNAME, and SPF. He offers breakdowns of difficult concepts as well as practical technical tips for the day-to-day activities involved in DNS server management.
- How split-horizon DNS works
- Lookups in Network Utility and Terminal on OS X, and from the cmd prompt on Windows
- Resolving DNS from different DNS servers, including BIND on pfSense and DNS Manager in Windows Server 2012
- Query, recursion, and caching basics
- DNS hierarchy
- Root-level DNS servers
- Configuring resource records: AAAA, MX, TXT, and more
- DNS tips and tricks for BIND, Windows Server, and Mac OS X Server
- Exploring DNS server options
Skill Level Beginner
Duration
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Introduction
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Welcome1m 9s
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Prerequisites3m 6s
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1. Using DNS Every Day
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How split-horizon DNS works5m 25s
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Lookups in Terminal with dig8m 48s
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2. The Fundamentals of DNS
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3. How DNS Is Organized as a System
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Components of DNS9m 12s
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Understanding DNS hierarchy3m 26s
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What is in a zone?6m 21s
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4. Resource Records
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Explore AAAA records2m 42s
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Understand CNAME records2m 32s
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Configure MX records2m 58s
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Explore TXT records2m 4s
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Understand SRV records8m 37s
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Explore PTR records7m 46s
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5. DNS Tips and Tricks
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Windows DNS dynamic updates2m 47s
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6. DNS Server Options
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Understand Internet DNS2m 54s
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Goodbye
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