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Network Protocols for Security

DNS

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.

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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What's inside

Syllabus

Course Overview

DNS Queries and Responses

Modifying Traffic Flow

Detecting DNS C2

Good to know

Know what's good

, what to watch for

, and possible dealbreakers

Examines how DNS network protocols work, which is key to cybersecurity

Explores common DNS anomalies and malicious conversations, which is found in real-world security scenarios

Taught by Brandon DeVault, a recognized expert in network security

Utilizes practical hands-on labs to reinforce key concepts, enhancing active learning

Assumes some background knowledge in networking and cybersecurity concepts

May require additional resources for learners with limited networking background

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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 Network Protocols for Security: DNS with these activities:

Seek Guidance from DNS Experts

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Connect with experienced professionals to gain valuable insights and guidance.

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Identify individuals with expertise in DNS protocols and security.
Reach out to potential mentors via LinkedIn, email, or industry events.
Seek advice on career development, technical challenges, or research opportunities.

DNS Query and Response Analysis Exercises

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Reinforce your understanding of DNS queries and responses by analyzing real-world network traffic.

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Capture network traffic using a packet analyzer (e.g., Wireshark).
Identify DNS requests and responses in the captured traffic.
Analyze the fields and values in the DNS queries and responses.
Identify any anomalies or suspicious patterns in the DNS traffic.

DNS Analysis Group Discussions

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Collaborate with peers to analyze DNS traffic and share insights.

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Form study groups or join online forums focused on DNS analysis.
Share your findings and interpretations of DNS traffic data.
Discuss potential security threats and mitigation strategies.
Learn from others' perspectives and broaden your understanding.

Two other activities

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DNS Security Tutorials

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Enhance your knowledge of DNS security by following expert-led tutorials.

Browse courses on DNS Security

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Identify reputable sources for DNS security tutorials.
Watch or read tutorials on topics such as DNSSEC and anti-spoofing techniques.
Take notes on key concepts and best practices.
Apply what you learn to improve your understanding of DNS security.

DNS Traffic Visualization

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Gain a deeper understanding of DNS traffic patterns by visualizing it.

Browse courses on Network Visualization

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Use a tool or library (e.g., NetworkX) to create a visual representation of DNS traffic data.
Identify patterns and relationships in the visualization.
Draw conclusions about DNS traffic behavior and potential security implications.
Present your findings to enhance your understanding.

Career center

Learners who complete Network Protocols for Security: DNS will develop knowledge and skills that may be useful to these careers:

Information Security Analyst

Network Protocols for Security: DNS is a valuable course for aspiring Information Security Analysts. Analysts rely on their deep understanding of network protocols and traffic to identify malicious activity. This course's unique focus on DNS-related security concerns and detection methods equips learners with specialized skills essential for this role. By mastering DNS analysis techniques, learners can enhance their ability to safeguard sensitive data and prevent cyberattacks, making them highly sought after in the field of information security.

See salaries and explore the career path for Information Security Analyst

Cybersecurity Engineer

Network Protocols for Security: DNS provides a solid foundation for individuals aspiring to become Cybersecurity Engineers. Engineers need to have a thorough understanding of network protocols to design and implement secure network architectures. This course's in-depth exploration of DNS, a critical protocol in internet communication, empowers learners to identify vulnerabilities and mitigate threats effectively. By gaining expertise in DNS security, learners can enhance their ability to protect organizations from cyberattacks, making them valuable assets in the cybersecurity industry.

See salaries and explore the career path for Cybersecurity Engineer

Network Security Engineer

Network Protocols for Security: DNS is a highly relevant course for Network Security Engineers. Engineers specialize in securing computer networks, and a deep understanding of network protocols is paramount. This course focuses specifically on DNS, a key protocol for internet communication, providing learners with the knowledge and skills to identify and address DNS-related security concerns. By mastering DNS analysis techniques, learners can contribute to the design and implementation of robust network security measures, enhancing their ability to protect organizations from cyber threats.

See salaries and explore the career path for Network Security Engineer

Security Architect

Network Protocols for Security: DNS may prove useful for Security Architects. Architects design and implement security solutions for organizations, and a comprehensive understanding of network protocols is essential. While this course delves into a specific protocol, DNS, it provides valuable insights into network security principles and best practices. By gaining expertise in DNS security, learners can enhance their ability to identify and mitigate network-based threats, contributing to the development of effective security architectures that protect organizations from cyberattacks.

See salaries and explore the career path for Security Architect

DevOps Engineer

Network Protocols for Security: DNS may be beneficial for DevOps Engineers. Engineers are responsible for bridging the gap between development and operations teams, and understanding network protocols is essential. This course focuses on DNS, a critical protocol for internet communication, providing learners with the knowledge and skills to troubleshoot and resolve DNS-related issues effectively. By mastering DNS analysis techniques, learners can contribute to the smooth operation and security of IT systems, enabling DevOps teams to deliver high-quality software products and services.

See salaries and explore the career path for DevOps Engineer

IT Auditor

Network Protocols for Security: DNS may be beneficial for IT Auditors. Auditors are responsible for assessing and reporting on the security of IT systems, and understanding network protocols is essential. This course focuses on DNS, a critical protocol for internet communication, providing learners with the knowledge and skills to identify and address DNS-related security concerns. By mastering DNS analysis techniques, learners can enhance their ability to evaluate the effectiveness of network security controls and contribute to the overall security posture of organizations.

See salaries and explore the career path for IT Auditor

Network Administrator

Network Protocols for Security: DNS may be beneficial for Network Administrators. Administrators are responsible for managing and maintaining computer networks, and understanding network protocols is crucial. This course focuses on DNS, a foundational protocol for internet communication, providing learners with the knowledge and skills to troubleshoot and resolve DNS-related issues effectively. By mastering DNS analysis techniques, learners can contribute to the smooth operation and security of computer networks, making them valuable members of IT teams.

See salaries and explore the career path for Network Administrator

Cloud Security Engineer

Network Protocols for Security: DNS may be useful for Cloud Security Engineers. Engineers are responsible for securing cloud computing environments, and a deep understanding of network protocols is essential. This course focuses on DNS, a key protocol for internet communication, providing learners with the knowledge and skills to identify and mitigate DNS-related security concerns in cloud environments. By mastering DNS analysis techniques, learners can contribute to the design and implementation of secure cloud architectures, enhancing their ability to protect cloud-based systems from cyber threats.

See salaries and explore the career path for Cloud Security Engineer

Information Technology Manager

Network Protocols for Security: DNS may be beneficial for Information Technology Managers. Managers are responsible for overseeing and managing IT operations, and understanding network protocols is essential. This course focuses on DNS, a critical protocol for internet communication, providing learners with the knowledge and skills to make informed decisions about network security and performance. By mastering DNS analysis techniques, learners can contribute to the efficient and secure operation of IT systems, enabling organizations to achieve their business goals.

See salaries and explore the career path for Information Technology Manager

Computer Network Architect

Network Protocols for Security: DNS may prove useful for Computer Network Architects. Architects design and implement computer networks, and a thorough understanding of network protocols is crucial. This course focuses on DNS, a key protocol for internet communication, providing learners with the knowledge and skills to design and implement secure network architectures. By mastering DNS analysis techniques, learners can contribute to the development of robust and efficient networks that meet the evolving needs of organizations.

See salaries and explore the career path for Computer Network Architect

Security Consultant

Network Protocols for Security: DNS may be helpful for Security Consultants. Consultants provide advice and guidance on security matters to organizations, and a deep understanding of network protocols is essential. This course focuses on DNS, a key protocol for internet communication, providing learners with the knowledge and skills to identify and mitigate DNS-related security risks. By mastering DNS analysis techniques, learners can contribute to the development and implementation of effective security strategies, helping organizations protect their critical assets from cyber threats.

See salaries and explore the career path for Security Consultant

Data Scientist

Network Protocols for Security: DNS may be beneficial for Data Scientists. Scientists use data to extract insights and knowledge, and understanding network protocols is essential for analyzing network traffic data. This course focuses on DNS, a critical protocol for internet communication, providing learners with the knowledge and skills to identify and extract valuable information from DNS data. By mastering DNS analysis techniques, learners can contribute to the development of data-driven solutions that address real-world problems and improve decision-making.

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Systems Analyst

Network Protocols for Security: DNS may be beneficial for Systems Analysts. Analysts design and implement computer systems, and a thorough understanding of network protocols is crucial. This course focuses on DNS, a key protocol for internet communication, providing learners with the knowledge and skills to design and implement secure and efficient systems. By mastering DNS analysis techniques, learners can contribute to the development of robust systems that meet the evolving needs of organizations.

See salaries and explore the career path for Systems Analyst

Software Developer

Network Protocols for Security: DNS may prove useful for Software Developers. Developers design and build software applications, and understanding network protocols is essential for developing secure and reliable software. This course focuses on DNS, a key protocol for internet communication, providing learners with the knowledge and skills to incorporate DNS functionality into their software applications. By mastering DNS analysis techniques, learners can contribute to the development of high-quality software products that meet the evolving needs of users.

See salaries and explore the career path for Software Developer

Business Analyst

Network Protocols for Security: DNS may be useful for Business Analysts. Analysts are responsible for understanding business needs and translating them into technical requirements, and understanding network protocols is essential for effective communication with technical teams. This course focuses on DNS, a critical protocol for internet communication, providing learners with the knowledge and skills to understand and analyze DNS-related requirements. By mastering DNS analysis techniques, learners can contribute to the development of high-quality software products and services that meet the business objectives of organizations.

See salaries and explore the career path for Business Analyst

Reading list

We've selected seven books that we think will supplement your learning. Use these to develop background knowledge, enrich your coursework, and gain a deeper understanding of the topics covered in Network Protocols for Security: DNS.

DNS and BIND

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Great introduction to DNS. It is written in a clear and concise style, and it covers all of the essential topics.

Network Protocols for Security

DNS

What's inside

Syllabus

Good to know

Save this course

Activities

Career center

Reading list

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