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IT Security Champion: DNS

by Kevin James

In this course, we will dive into the essentials of DNS and its security implications. This course will teach you how to protect and optimize your network's DNS infrastructure.

What you'll learn

In today's digital age, internet infrastructure security is paramount, yet often overlooked is the critical role that the Domain Name System (DNS) plays in overall network security. In this course, IT Security Champion: DNS, you'll learn to understand, manage, and secure DNS to enhance your IT infrastructure. First, you'll explore the fundamental concept of DNS, its function, and its relevance to IT administration, providing a solid foundation for further learning. Next, you'll discover the intricacies of how DNS requests work, including different scenarios that affect internet traffic flow and its vulnerabilities. Finally, you'll learn how to identify and mitigate DNS vulnerabilities such as DNS poisoning, tunneling, and exfiltration, and understand the application of advanced protocols like DNSSEC and DNS over HTTPS to secure DNS queries. When you're finished with this course, you'll have the skills and knowledge of DNS needed to effectively protect your organization's network and contribute significantly as a security champion.

About the author

As a seasoned technologist with over 30 years of wide-ranging expertise in information technology roles across diverse industries, Kevin is passionate about finding effective and economical solutions to business problems. His passion for teaching technical subjects allows him to have a particular style that imparts information yet teaches at the same time. He enjoys working with Linux, Unix and Windows Operating Systems and combined with a deep knowledge of software platforms as varied as Ap... more

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