Learn in and Out of DNS

Name: Learn in and Out of DNS
Rating: 3.7 (37 reviews)

Learn the Core Concepts of DNS functionality

Created byVista Skills

Last updated 5/2020

English

What you'll learn

You will know what DNS is, and how it works.
Learn how primary and secondary DNS servers works together
Learn how DNS resolves queries

Course content

8 sections • 37 lectures • 2h 23m total length

Introduction1:07

Domain Name System - History5:00
Trace the evolution from the host file to domain name system, highlighting latency and bandwidth challenges, and the rise of a hierarchical, globally accessible DNS shaped by RFCs and BIND.
DNS - Domain Name System4:27
DDZ3:48
Internet Namespace5:22
Explore the early internet namespace with seven functional top-level domains, such as com for commercial and edu for educational, and its evolution toward generic and country code top-level domains.
IDM - Internationalised Domain Names2:45
Name Servers, Zones & Authority1:41
Resolvers2:19
RR-Resolution & Recursion6:16
Q & R - Queries and Responses3:36
Caching3:06
SSR2:18

Resource Records4:07
DNS A Record1:16
DNS AAAA Record1:31
DNS PTR Record3:49
DNS CNAME Record2:11
Understand how the dns cname record creates an alias that points to a canonical name and why the alias cannot host other records.
DNS MX Record2:39
DNS SRV Record3:11
DNS TXT Record1:09
Learn how dns txt records can attach data to domain names using multiple 255-byte strings, and why keeping data under about 1300 bytes avoids udp fragmentation.
DNS Infrastructure Record9:10
DNS Wildcards2:41
RRset Order1:37
DIG tool - Tracing Resolution5:57
Use the dig tool to trace DNS resolution, follow ns delegations, and see how A and AAAA records, along with CNAME aliases, map info blocks dot com to Amazon AWS.

Dynamic Update8:02
Notify3:48
Explore how notify lets a primary authoritative name server tell secondaries when zone data changes, triggering serial-number checks and zone transfers via small UDP notifier messages.
IXFR1:21
Sender Policy Framework4:05
Discover how the sender policy framework uses DNS to authenticate mail, prevent spoofing, and authorize senders via plus and minus mechanisms for domains and their DNS records.

Requirements

Basic Knowledge of Windows/Linux

Description

The Domain Name System (DNS) is the backbone of the Internet; making sure it is configured properly is a key skill for network administrators.

In this course, you will learn how DNS works, including different its different functions as resolvers, resolution and recursion, and caching. Further, you will learn about name servers, such as authoritative, primary, secondary, and forwarders. It's easy to get confused between different kinds of DNS records, so we will take a deep dive in learning a different kind of DNS records.

and in the last, we will see different DNS tools in action like nslookup and dig, as well as advanced topics such as NOTIFY and sender policy framework.

I am sure that once you are through this based training course, you will have gained a solid understanding of Domain Name Servers and resource records.

Who this course is for:

System Administrators
IT professionals who are looking to Understand the Core concepts of DNS
Network Administrators

Learn in and Out of DNS

What you'll learn

Explore related topics

Course content

Introduction1 lecture • 1min

Learn Core Working of DNS11 lectures • 41min

DNS Name Servers4 lectures • 12min

DNS Different Types of Resource Records12 lectures • 39min

Resolver2 lectures • 10min

DNS Advance Concepts4 lectures • 17min

DNS Query Tools2 lectures • 22min

Wrap-up1 lecture • 2min

Requirements

Description

Who this course is for: