Protocol Deep Dive: DNS

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Betty DuBois

2:21:31

95 View

1. Course Overview

1. Course Overview.mp4

01:43

2. Exploring DNS Terminology and Use Cases

1. Describe the Purpose of DNS.mp4

03:49

2. Demo- Simple Client Query.mp4

07:32

3. Understanding DNS Terminology.mp4

07:24

4. Capturing DNS Recursion.mp4

09:12

3. Configuring DNS for Clients

1. Examine How Clients Obtain DNS.mp4

02:18

2. Demo- DNS in DHCP.mp4

01:58

3. Understanding DNS Cache.mp4

01:12

4. Demo- Clearing Cache on Client and Server.mp4

08:24

5. Comparing DNS Privacy Methods.mp4

03:03

6. Demo- Implementing DNS over TLS (DoT).mp4

04:28

4. Modifying DNS Configuration for Servers

1. Configuring DNS Zones.mp4

05:08

2. Demo- Creating Zones.mp4

13:59

3. Configuring Record Types.mp4

07:02

4. Demo- Adding Records and Confirming Zone Transfer.mp4

07:41

5. Adding Subdomains including Demo.mp4

03:38

5. Troubleshooting DNS

1. Isolating Cause of DNS Outages.mp4

02:31

2. Demo- Isolating Cause of Inability to Browse Internet.mp4

03:53

3. Demo- Isolating Cause of Inability to Access Local Resources Too.mp4

07:37

4. Demo- Isolating Cause of Inability to Access Local or Remote Resources.mp4

02:16

5. Identifying Single Points of Failure.mp4

03:53

6. Demo- Troubleshooting Silence.mp4

03:48

7. Demo- Troubleshooting Error Responses.mp4

06:13

8. Demo- Troubleshooting Slow Responses.mp4

13:46

6. Securing DNS

1. Preventing Common DNS Attacks.mp4

04:37

2. Demo- Filtering at the Server with Microsoft DNS Policy.mp4

04:26

Description

Billions of number sets are impossible to remember, that's why DNS is critical to internal networks and the Internet. This course will teach you how DNS works from configuration to security. Packets will be analyzed with Wireshark at every step.

What You'll Learn?

Almost every application depends on DNS name resolution. Users just don’t want to memorize or lookup an IP address. In this course, Protocol Deep Dive: DNS, you’ll learn to use DNS in a variety of scenarios. First, you’ll explore DNS terminology and use cases. Next, you’ll discover how to configure DNS on a client for privacy using DNS over TLS and DNS over HTTPS. Then, you’ll investigate the different types of DNS zones, record and server types, and see subdomains and redirects in action to better understand their effect on a company. Finally, you’ll learn how to troubleshoot and secure DNS. When you’re finished with this course, you’ll have the skills and knowledge needed to manage, troubleshoot, and secure DNS.

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Wireshark

Betty DuBois

Instructor's Courses

Betty DuBois is the Chief Detective for Packet Detectives, a network performance consulting and training firm based in Atlanta, GA. She has been solving mysteries since 1997. Experienced with a range of hardware and software packet capture solutions, she captures the right data, in the right place, and at the right time to find the real culprit. Betty shares her passion for packets as a presenter each year at SharkFest the Wireshark Developer and User Conference, and is active in the Wireshark community. Using packets to solve crimes against the network and applications is her passion. Teaching others to do the same is her calling.

Pluralsight

View courses Pluralsight

Pluralsight, LLC is an American privately held online education company that offers a variety of video training courses for software developers, IT administrators, and creative professionals through its website. Founded in 2004 by Aaron Skonnard, Keith Brown, Fritz Onion, and Bill Williams, the company has its headquarters in Farmington, Utah. As of July 2018, it uses more than 1,400 subject-matter experts as authors, and offers more than 7,000 courses in its catalog. Since first moving its courses online in 2007, the company has expanded, developing a full enterprise platform, and adding skills assessment modules.