Understanding the Domain Name Service or DNS is imperative in IT today. Knowing what is supposed to happen when connecting to web sites and various services throughout your network relies heavily on DNS. In this course, Deep Dive: Domain Name Service (DNS), you'll learn about DNS query and responses at the packet level. Second, you'll learn all about how DNS referrals work, learning about when one DNS server refers to another for information. Finally, you'll learn how to troubleshoot DNS using log files, command line utilities, and how to capture data packets using Wireshark. By the end of this course, you'll have a firm grasp of DNS and be able to master the packet level.
Course Overview Hi everyone, my name is Rhonda Layfield, and welcome to my course DNS Deep Dive. I am an independent contractor, and I've been in IT for almost 35 years, and one topic everyone needs to know is the domain name service, or DNS. That's the topic of this course. In this course, we're going to learn DNS at the packet level. Starting out with a simple DNS query and response, you will ease into using Wireshark, one of the most technical tools in existence. You will learn not only DNS, but how to use Wireshark for all kinds of troubleshooting issues. We'll cover DNS forwarders, conditional forwarders, root hints, which takes us to authoritative versus non-authoritative responses, we'll cover zone types, resource records, and zone transfers. By the end of this course, you'll be a DNS expert, and you'll know how to find DNS packets using Wireshark. Before beginning the course, you should be a little bit familiar with just basic TCP/IP functionalities. I hope you'll join me on this journey to learn DNS with the DNS Deep Dive course at Pluralsight.