CF

DNS course for developers

2h 44m 2s
English
Paid
Updated February 2024

Learn DNS once and for all. They say you should learn the fundamentals, and the rest will fall into place. DNS is right at the foundation of the internet. Having a clear understanding of DNS will help you configure and debug DNS many times throughout your career.

DNS hasn't changed that much since its introduction in 1983 and it's unlikely to start now. DNS isn't going anywhere. The earlier you learn DNS, the longer you'll benefit. The great thing about DNS is that all the information is public. You can have perfect clarity if you know where to look.

Who is this course for?

This course is for you if you want to gain mastery over DNS.

It assumes you have a basic understanding of how the internet works, but you don't need to be an expert. This course assumes no prior networking experience and involves no programming.

If you've worked on DNS full-time for over a year, this course is probably not for you. Otherwise, you'll learn a lot! If you invest in your knowledge today, you'll benefit for the rest of your career.

Additional

Pre-sale version.

Modules

  • Email and the DNS - coming soon
  • Debugging DNS issues - coming soon

About the Author: Ruurtjan Pul

Ruurtjan Pul thumbnail

Ruurtjan Pul is a software engineer and educator focused on the foundational networking knowledge underneath modern software — particularly DNS as a system that most developers treat as opaque magic.

His CourseFlix listing carries DNS Course for Developers — a structured treatment of how DNS actually works: the resolution flow, the record types, the operational concerns (caching, propagation, the nameserver hierarchy), and the engineering patterns for reasoning about DNS as part of production system design.

Material is paid and aimed at developers ready to fill the DNS-fundamentals gap that most CS curricula skip. For broader content, see CourseFlix's Networking & Protocols category page.

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#1: DNS is a database
All Course Lessons (39)
#Lesson TitleDurationAccess
1
DNS is a database Demo
03:01
2
The DNS is organized as a tree
02:58
3
Zone delegation
03:22
4
The root zone
03:08
5
Authoritative DNS servers
00:49
6
Zone transfer
04:00
7
Top-level domains
03:44
8
Second and third-level domains
01:02
9
Registries, registrars & registrants
03:07
10
ICANN-s oversight
01:38
11
WHOIS & RDAP
05:18
12
International domain names
02:15
13
The domain name lifecycle
02:58
14
Domain transfer
03:16
15
Recursive queries
04:23
16
Glue records
02:01
17
DNS caching
04:17
18
Negative caching
01:11
19
The DNS protocol
08:26
20
EDNS
04:19
21
Transport protocols
04:59
22
Public DNS resolvers
03:45
23
DDNS
02:11
24
Dynamic DNS responses
03:19
25
An overview of DNS record types
02:16
26
A and AAAA records
04:04
27
CNAME records
08:37
28
TXT records
03:22
29
SRV records
05:23
30
PTR records
05:17
31
DNSSEC-related record types
02:18
32
An overview of email configuration
04:35
33
Receiving email Resources and references
05:17
34
DANE Resources and references
08:08
35
MTA-STS Resources and references
06:29
36
SPF Resources and references
12:14
37
DKIM Resources and references
05:15
38
DMARC Resources and references
09:20
39
BIMI Resources and references
02:00
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Frequently asked questions

What is DNS course for developers about?
Learn DNS once and for all. They say you should learn the fundamentals, and the rest will fall into place. DNS is right at the foundation of the internet. Having a clear understanding of DNS will help you configure and debug DNS many times…
Who teaches this course?
It is taught by Ruurtjan Pul. You can find more courses by this instructor on the corresponding source page.
How long is the course?
It contains 39 lessons with a total runtime of 2 hours 44 minutes. Every lesson is available to watch online at your own pace.
Is it free to watch?
It is part of CourseFlix's premium catalog. A subscription unlocks the full video player; the course description, table of contents, and preview information are available to everyone.
Where can I watch it online?
The course is available to watch online on CourseFlix at https://courseflix.net/course/dns-course-for-developers. The page hosts every lesson with the integrated video player; no download is required.