IT Security Champion: DNS from Pluralsight

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.

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.

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Read about what's good

what should give you pause

and possible dealbreakers

Develops DNS security knowledge and skills, which are core skills for IT professionals

Explores DNS vulnerabilities, which is standard in industry knowledge

Teaches DNS management, which helps learners protect and optimize their networks

Reviews summary

Essential dns security for it professionals

According to students, this course offers a clear and comprehensive foundation in DNS security. Many learners praise the instructor's clarity in explaining complex concepts and the course's emphasis on practical, real-world application of security measures, including DNSSEC and DNS over HTTPS (DoH). Reviewers appreciate the insights into identifying and mitigating DNS vulnerabilities like poisoning and exfiltration. However, a recurring theme among some experienced IT professionals is that while the course is excellent for beginners, it may lack the advanced depth expected from a 'champion' level and many wished for more hands-on labs or advanced configuration examples.

Excellent for beginners, but may lack advanced details for experienced pros.

"Good for beginners, but not for seasoned pros looking for an advanced track."

"While it touched on DNS security, I felt it lacked the depth I expected from a 'champion' level course."

"Provides a robust overview... for someone with prior DNS experience, it might feel a bit slow-paced."

"I was hoping for more cutting-edge threats and defense strategies... didn't quite live up to the 'champion' title."

Thoroughly addresses DNSSEC, DoH, and common DNS vulnerabilities.

"The modules on DNS vulnerabilities like poisoning and exfiltration were particularly insightful."

"The sections on DNSSEC were comprehensive and easy to follow..."

"The coverage of DNS over HTTPS (DoH) was current and relevant."

"It demystified DNSSEC for me."

Focuses on actionable insights and real-world defense mechanisms.

"The demos were spot on, showing real-world scenarios for DNSSEC and DoH implementation."

"I particularly valued the emphasis on real-world attacks and defense mechanisms."

"I've already applied some of the techniques to my organization's setup."

"The focus on practical application rather than just theory was appreciated."

Instructor excels at demystifying complex DNS security topics.

"The instructor explains complex DNS concepts and security implications with incredible clarity."

"The explanations were clear, concise, and the pace was perfect. It demystified DNSSEC for me."

"The instructor's explanations are superb! I particularly liked how he broke down DNS poisoning and how to prevent it."

"Absolutely fantastic! The instructor's passion for the subject really shone through."

Learners desire more practical exercises and dedicated lab environments.

"My only minor gripe is that I wished for a bit more advanced configuration examples beyond the basics..."

"I needed more hands-on practical exercises to truly understand the vulnerabilities and countermeasures. Not enough 'how-to'."

"I would have appreciated a dedicated lab environment to practice the mitigation steps..."

"Adding interactive labs could make it even better, especially for demonstrating the vulnerabilities hands-on."

Activities

Be better prepared before your course. Deepen your understanding during and after it. Supplement your coursework and achieve mastery of the topics covered in IT Security Champion: DNS with these activities:

Review the basics of DNS

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Ensure a baseline understanding of DNS concepts and terminology before starting the course.

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Review the definition and purpose of DNS.
Explain how DNS translates domain names to IP addresses.
Identify the different types of DNS records.

Work through DNS tutorials

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Reinforce your understanding of DNS concepts and gain practical experience through guided tutorials.

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Follow a tutorial on configuring a DNS server.
Practice managing DNS records for a domain.
Explore tutorials on DNS security best practices.

Engage in peer discussions

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Exchange knowledge and insights with peers to enhance your understanding of DNS concepts and best practices.

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Join or create a study group or discussion forum.
Participate actively in discussions and share your knowledge.
Seek feedback and support from peers.

Three other activities

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Troubleshoot DNS issues

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Develop your problem-solving skills by practicing troubleshooting common DNS issues.

Browse courses on DNS Troubleshooting

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Identify symptoms and causes of DNS errors.
Use diagnostic tools to analyze DNS issues.
Implement solutions to resolve DNS problems.

Develop a DNS security plan

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Apply your knowledge of DNS security to create a comprehensive plan for your organization.

Browse courses on DNS Security

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Identify and assess DNS security risks.
Develop strategies to mitigate DNS vulnerabilities.
Document your DNS security plan.

Mentor junior IT professionals

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Reinforce your understanding of DNS concepts while supporting the development of others in the field.

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Identify opportunities to mentor junior IT professionals or students.
Provide guidance and support on DNS-related topics.
Share your knowledge and expertise to foster their growth.

Career center

Learners who complete IT Security Champion: DNS will develop knowledge and skills that may be useful to these careers:

Information Security Analyst

An Information Security Analyst is responsible for designing and implementing security measures to protect an organization's network and data. This course can help you prepare for this role by introducing you to the fundamentals of DNS and its security implications. You'll learn how to identify and mitigate DNS vulnerabilities, and how to use advanced protocols like DNSSEC and DNS over HTTPS to secure DNS queries.

See salaries and explore the career path for Information Security Analyst

Network Administrator

A Network Administrator is responsible for managing and maintaining an organization's network infrastructure. This course can help you prepare for this role by teaching you how to configure and manage DNS servers. You'll also learn how to troubleshoot DNS issues and how to implement security measures to protect the network from DNS attacks.

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IT Security Manager

An IT Security Manager is responsible for developing and implementing security policies and procedures for an organization. This course can help you prepare for this role by providing you with a deep understanding of DNS security. You'll learn how to identify and mitigate DNS threats, and how to develop and implement security measures to protect the organization's IT infrastructure.

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Security Engineer

A Security Engineer is responsible for designing, implementing, and maintaining security systems for an organization. This course can help you prepare for this role by providing you with a deep understanding of DNS security. You'll learn how to identify and mitigate DNS threats, and how to develop and implement security measures to protect the organization's IT infrastructure.

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Cloud Security Architect

A Cloud Security Architect is responsible for designing and implementing security measures for cloud-based applications and infrastructure. This course can help you prepare for this role by providing you with a deep understanding of DNS security. You'll learn how to identify and mitigate DNS threats, and how to develop and implement security measures to protect the organization's cloud-based IT infrastructure.

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Penetration Tester

A Penetration Tester is responsible for identifying and exploiting security vulnerabilities in an organization's network and IT systems. This course can help you prepare for this role by teaching you how to identify and exploit DNS vulnerabilities. You'll also learn how to use advanced techniques to bypass DNS security measures.

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SOC Analyst

A Security Operations Center (SOC) Analyst is responsible for monitoring and analyzing security events and incidents. This course can help you prepare for this role by providing you with a deep understanding of DNS security. You'll learn how to identify and mitigate DNS threats, and how to use security tools and techniques to detect and respond to DNS attacks.

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Cybersecurity Consultant

A Cybersecurity Consultant provides advice and guidance to organizations on how to improve their cybersecurity posture. This course can help you prepare for this role by giving you a comprehensive understanding of DNS security. You'll learn how to assess DNS vulnerabilities, develop and implement DNS security measures, and respond to DNS attacks.

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Incident Responder

An Incident Responder is responsible for responding to and managing security incidents. This course can help you prepare for this role by providing you with a deep understanding of DNS security. You'll learn how to identify and mitigate DNS threats, and how to use security tools and techniques to respond to DNS attacks.

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Security Architect

A Security Architect is responsible for designing and implementing security architectures for organizations. This course can help you prepare for this role by providing you with a comprehensive understanding of DNS security. You'll learn how to assess DNS vulnerabilities, develop and implement DNS security measures, and respond to DNS attacks.

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System Administrator

A System Administrator is responsible for managing and maintaining an organization's IT systems. This course can help you prepare for this role by teaching you how to configure and manage DNS servers. You'll also learn how to troubleshoot DNS issues and how to implement security measures to protect the network from DNS attacks.

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Database Administrator

A Database Administrator is responsible for managing and maintaining an organization's databases. This course may be helpful in preparing for this role by teaching you how to secure DNS queries and protect against DNS attacks. This knowledge can be particularly valuable for securing database-related DNS queries and protecting against DNS-based attacks that target databases.

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Software Engineer

A Software Engineer designs, develops, and maintains software applications. This course may be helpful in preparing for this role by teaching you how to secure DNS queries and protect against DNS attacks. This knowledge can be particularly valuable for securing software applications that rely on DNS for communication and data retrieval.

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Web Developer

A Web Developer designs, develops, and maintains websites. This course may be helpful in preparing for this role by teaching you how to secure DNS queries and protect against DNS attacks. This knowledge can be particularly valuable for securing websites that rely on DNS for domain name resolution and content delivery.

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Cloud Engineer

A Cloud Engineer designs, develops, and maintains cloud-based applications and infrastructure. This course may be helpful in preparing for this role by teaching you how to secure DNS queries and protect against DNS attacks. This knowledge can be particularly valuable for securing cloud-based applications and infrastructure that rely on DNS for domain name resolution and network connectivity.

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