Network Protocols for Security: DNS

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Brandon DeVault

17:32

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1. Course Overview

1. Course Overview.mp4

00:52

2. DNS Queries and Responses

1. Introduction to DNS.mp4

01:34

2. Demo - Using NSlookup.mp4

04:26

3. Scratching the Surface.mp4

00:16

3. Modifying Traffic Flow

1. DNS Traffic Flow.mp4

01:43

2. Demo - Modifying OS Cache.mp4

02:47

3. Vulnerable Settings.mp4

00:25

4. Detecting DNS C2

1. DNS C2.mp4

01:41

2. Demo - Generating an Entropy Score with Zeek.mp4

02:26

3. Advanced Analysis.mp4

01:22

Description

In this course, you’ll practice creating network traffic to analyze how DNS queries and responses operate. When you're finished, you'll have a fundamental understanding on how to find anomalies within DNS.

What You'll Learn?

Understanding how network protocols operate is an implied skill required to be successful in cyber security. In this course, Network Protocols for Security: DNS, you’ll learn to analyze DNS network traffic. First, you’ll explore a typical DNS request to understand how queries and responses operate. Next, you’ll modify the local hosts file to see one method where DNS can be taken advantage of. Finally, you’ll analyze a command and control conversation to gain further insight into malicious DNS conversations. When you’re finished with this course, you’ll have the skills and knowledge of DNS needed to find anomalies and malicious activity amongst network traffic.

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CISSP - Certified Information Systems Security Professional

Cyber Security

Network Security

Information Security

Cyber Security Awareness

Brandon DeVault

Instructor's Courses

Brandon DeVault is an Sr. Security Author focusing on general blue team operations, incident response, and threat hunting at Pluralsight. He is also a member of the Florida Air National Guard and works as a threat hunter on a Mission Defense Team (MDT) defending North America’s air tracks. Prior to joining Pluralsight, Brandon worked with Elastic as an Education Architect creating and delivering security content. He also worked with Special Operations Command where he had two deployments to Afghanistan on deployable communications teams. His experience spans satellite communications, radio technologies, system and network administration. Brandon is also passionate about hardware hacking, soldering, hiking, and currently holds the GCIA, GCED, and Security+ certifications.

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.