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Guido Schmitz

The security of computer networks is a key element in cyber security. Computer networking provides the foundational connectivity services that are used for the world wide web, distributed computer applications and services, operations and manufacturing, and national infrastructure.

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The security of computer networks is a key element in cyber security. Computer networking provides the foundational connectivity services that are used for the world wide web, distributed computer applications and services, operations and manufacturing, and national infrastructure.

This course provides understanding of key technologies used in computer networks and infrastructure. This includes protocols, computer networks, data centres, operational technologies that form key infrastructure critical to the success of organisations and services from a local to an international scale. The course discusses vulnerabilities and the exploits that target computer networks, systems, and the Internet infrastructure.

By the end of this course learners will be able to:

1. Show a systematic understanding of digital networks and their operation, including the OSI 7 layer architecture and the TCP/IP protocol stack.

2. Discuss key security threats and risks faced in computer networks.

3. Demonstrate a critical understanding of network security architecture and design rationale of selected protocols, security technologies and how they are used in practice.

4. Identify attack models and analyse vulnerabilities in protocols, network systems, and applications.

5. Demonstrate how these vulnerabilities may be exploited in practice to penetrate a system.

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What's inside

Syllabus

Introduction to the course and computer networks
In the first week, we will obtain an overview of the course and, in particular, get an overview of communication principles in networks as well as its threats. You will also reflect on your own expectations of what the course will teach. The key concepts for this week are messages, channels and network adversaries.
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Traffic lights

Read about what's good
what should give you pause
and possible dealbreakers
Introduces vital concepts and principles of digital networks and their operation
Examines diverse security threats and risks associated with computer networks
Provides insights into designing effective network security architecture based on industry practices
Delves into vulnerabilities in network protocols, systems, and applications, aiding in threat identification
Explores real-world attack models and demonstrates how vulnerabilities can be exploited
Emphasizes secure communication techniques to ensure confidentiality and integrity in data transmission

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Reviews summary

Foundational network security for beginners

According to learners, "Introduction to Network Security" is a highly effective starting point for understanding core concepts. Students praise the course for providing a solid foundation in network protocols like OSI layers and TCP/IP, with many noting its clear explanations and engaging video lectures. Recent reviews particularly highlight the inclusion of practical examples of vulnerabilities and exploits and well-designed labs that reinforce learning. While some older feedback mentioned a theoretical focus or outdated examples, more recent comments suggest the course is continually updated, making it feel very current. Learners seeking deeper, advanced practical application may find it a good starting point for further self-study.
Generally suitable for beginners, but some parts can be fast.
"The pace was a bit too fast for a true beginner in certain sections."
"I found the flow of topics appropriate for an introduction, covering a lot without feeling rushed."
"It manages to cover a lot of ground effectively, though some prior networking exposure would be beneficial."
Instructor clarity makes complex topics accessible.
"The instructor explained complex topics like OSI layers and TCP/IP in a very digestible way."
"Just finished this course and it exceeded my expectations. The video lectures are engaging and the supplementary readings are spot on."
"The structure builds logically, making it easy to follow even for someone new to the field."
Content has been improved to stay current.
"I appreciate how they continually update the content; it feels very current."
"Some of the older references could use an update, but the core concepts are timeless. It seems newer versions address this."
"I previously heard some parts were dated, but the version I took felt entirely relevant to today's threats."
Offers valuable hands-on understanding of exploits.
"I especially appreciated the practical examples of vulnerabilities and exploits; it made the theoretical concepts tangible. The labs were well-designed."
"The content is very relevant for a security analyst role. I particularly liked how the course covered vulnerabilities and attack models in a structured way."
"I found the labs provided very effective in reinforcing the concepts I learned from the lectures."
Builds essential understanding of network security.
"This course was an excellent introduction to network security. The instructor explained complex topics like OSI layers and TCP/IP in a very digestible way."
"Overall, a solid course. It provides a strong foundation in network protocols and common security threats."
"A very good foundational course. It meticulously covers the OSI model and TCP/IP stack, which is crucial for security."
"I gained a much stronger grasp of network infrastructure and how foundational protocols underpin security threats."
Provides breadth but may lack advanced practical depth.
"For an 'introduction,' it does a great job, but those seeking deep dives into specific attack methodologies might find it a bit light."
"I found myself needing to do additional external research to grasp certain topics fully."
"It's a good starting point, but don't expect to become a network security expert from this alone. You'll need to do more practical work on your own."
"The course felt like it was skimming the surface rather than providing deep understanding in some areas."

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 Introduction to Network Security with these activities:
Review Basic Networking Concepts
Strengthen your foundation in key networking concepts to enhance your understanding of the course material.
Browse courses on Networking Basics
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  • Review notes or online resources on topics like network topologies, protocols, and addressing.
  • Complete practice exercises or quizzes to test your understanding.
Read "Computer Networking: A Top-Down Approach"
Gain a comprehensive understanding of computer networking concepts and technologies by reading this foundational text.
Show steps
  • Read through each chapter thoroughly.
  • Take notes and highlight key concepts.
  • Review the chapter summaries and test your understanding by completing the exercises.
Participate in Peer Group Discussions
Engage with peers to discuss course concepts, share knowledge, and gain diverse perspectives.
Show steps
  • Join or form a peer group.
  • Regularly participate in group discussions.
  • Actively listen to others' ideas and share your own insights.
Five other activities
Expand to see all activities and additional details
Show all eight activities
Attend a Network Security Workshop
Gain practical experience in network security by attending a hands-on workshop.
Browse courses on Network Security
Show steps
  • Research and identify relevant workshops.
  • Register and attend the workshop.
  • Actively participate in the hands-on exercises and discussions.
Follow Tutorials on Packet Analysis
Enhance your understanding of network security by learning how to analyze network packets.
Browse courses on Packet Analysis
Show steps
  • Identify online tutorials or courses on packet analysis.
  • Set aside dedicated time to work through the tutorials.
  • Practice analyzing network packets using the tools and techniques learned.
Practice Identifying Network Vulnerabilities
Develop your ability to identify and assess potential security weaknesses in computer networks.
Browse courses on Network Vulnerabilities
Show steps
  • Find online resources or practice platforms that provide mock network scenarios.
  • Analyze the provided network configurations and identify potential vulnerabilities.
  • Document the identified vulnerabilities and suggest mitigation strategies.
Design a Network Security Plan
Demonstrate your understanding of network security by creating a comprehensive plan to protect a network infrastructure.
Browse courses on Network Security
Show steps
  • Define the scope and objectives of the network security plan.
  • Identify and assess potential risks and threats to the network.
  • Design and document security measures to mitigate identified risks.
  • Develop a plan for implementing, monitoring, and maintaining the security measures.
Create a Network Security Infographic
Reinforce your understanding of network security concepts by creating a visually engaging infographic.
Browse courses on Network Security
Show steps
  • Identify key network security concepts.
  • Gather relevant data and statistics.
  • Design and create an eye-catching infographic using visual elements like charts, graphs, and images.

Career center

Learners who complete Introduction to Network Security will develop knowledge and skills that may be useful to these careers:
Information Security Analyst
An Information Security Analyst is tasked with protecting an organization's computer networks and systems from unauthorized access, use, disclosure, disruption, modification, or destruction. An Information Security Analyst must have in-depth knowledge of network security to effectively perform their job. This course provides a solid foundation in network security concepts, including network protocols, network attacks, and network security technologies. By taking this course, you will gain the knowledge and skills needed to pursue a career as an Information Security Analyst, enabling you to stay ahead of the latest threats and keep critical systems secure.
Network Security Engineer
A Network Security Engineer designs, implements, and maintains security measures to protect an organization's computer networks and systems. A Network Security Engineer must have a strong understanding of network security principles and technologies. This course provides a comprehensive overview of network security, including network protocols, network attacks, and network security technologies. By taking this course, you will gain the knowledge and skills needed to pursue a career as a Network Security Engineer, enabling you to design, implement, and maintain effective network security solutions.
Cybersecurity Analyst
A Cybersecurity Analyst is responsible for identifying, assessing, and mitigating cybersecurity risks. A Cybersecurity Analyst must have a deep understanding of network security concepts and technologies. This course provides a comprehensive overview of network security, including network protocols, network attacks, and network security technologies. By taking this course, you will gain the knowledge and skills needed to pursue a career as a Cybersecurity Analyst, enabling you to effectively identify, assess, and mitigate cybersecurity risks.
Security Consultant
A Security Consultant provides advice and guidance to organizations on how to improve their security posture. A Security Consultant must have a broad understanding of security concepts and technologies, including network security. This course provides a solid foundation in network security concepts and technologies. By taking this course, you will gain the knowledge and skills needed to pursue a career as a Security Consultant, enabling you to provide expert advice and guidance to organizations on how to improve their security posture.
Security Architect
A Security Architect designs and implements security solutions for organizations. A Security Architect must have a deep understanding of security concepts and technologies, including network security. This course provides a comprehensive overview of network security, including network protocols, network attacks, and network security technologies. By taking this course, you will gain the knowledge and skills needed to pursue a career as a Security Architect, enabling you to design and implement effective security solutions for organizations.
Network Administrator
A Network Administrator is responsible for managing and maintaining an organization's computer networks and systems. A Network Administrator must have a strong understanding of network security concepts and technologies. This course provides a solid foundation in network security concepts and technologies. By taking this course, you will gain the knowledge and skills needed to pursue a career as a Network Administrator, enabling you to effectively manage and maintain an organization's computer networks and systems.
IT Auditor
An IT Auditor reviews and evaluates an organization's IT systems and processes to ensure that they are compliant with security regulations and standards. An IT Auditor must have a strong understanding of network security concepts and technologies. This course provides a solid foundation in network security concepts and technologies. By taking this course, you will gain the knowledge and skills needed to pursue a career as an IT Auditor, enabling you to effectively review and evaluate an organization's IT systems and processes.
System Administrator
A System Administrator is responsible for managing and maintaining an organization's computer systems. A System Administrator must have a strong understanding of network security concepts and technologies. This course provides a solid foundation in network security concepts and technologies. By taking this course, you will gain the knowledge and skills needed to pursue a career as a System Administrator, enabling you to effectively manage and maintain an organization's computer systems.
Database Administrator
A Database Administrator is responsible for managing and maintaining an organization's database systems. A Database Administrator must have a strong understanding of network security concepts and technologies. This course provides a solid foundation in network security concepts and technologies. By taking this course, you will gain the knowledge and skills needed to pursue a career as a Database Administrator, enabling you to effectively manage and maintain an organization's database systems.
Computer Programmer
A Computer Programmer writes and maintains computer programs. A Computer Programmer must have a strong understanding of network security concepts and technologies. This course provides a solid foundation in network security concepts and technologies. By taking this course, you will gain the knowledge and skills needed to pursue a career as a Computer Programmer, enabling you to effectively write and maintain computer programs.
Computer Scientist
A Computer Scientist researches and develops new computer technologies. A Computer Scientist must have a strong understanding of network security concepts and technologies. This course provides a solid foundation in network security concepts and technologies. By taking this course, you will gain the knowledge and skills needed to pursue a career as a Computer Scientist, enabling you to effectively research and develop new computer technologies.
Information Technology Manager
An Information Technology Manager is responsible for planning, implementing, and managing an organization's IT systems and services. An Information Technology Manager must have a strong understanding of network security concepts and technologies. This course provides a solid foundation in network security concepts and technologies. By taking this course, you will gain the knowledge and skills needed to pursue a career as an Information Technology Manager, enabling you to effectively plan, implement, and manage an organization's IT systems and services.
Chief Information Officer
A Chief Information Officer is responsible for overseeing an organization's IT strategy and operations. A Chief Information Officer must have a strong understanding of network security concepts and technologies. This course provides a solid foundation in network security concepts and technologies. By taking this course, you will gain the knowledge and skills needed to pursue a career as a Chief Information Officer, enabling you to effectively oversee an organization's IT strategy and operations.
Chief Technology Officer
A Chief Technology Officer is responsible for leading an organization's technology strategy and development. A Chief Technology Officer must have a strong understanding of network security concepts and technologies. This course provides a solid foundation in network security concepts and technologies. By taking this course, you will gain the knowledge and skills needed to pursue a career as a Chief Technology Officer, enabling you to effectively lead an organization's technology strategy and development.
Product Manager
A Product Manager is responsible for defining and managing the development of a product. A Product Manager must have a strong understanding of network security concepts and technologies. This course provides a solid foundation in network security concepts and technologies. By taking this course, you will gain the knowledge and skills needed to pursue a career as a Product Manager, enabling you to effectively define and manage the development of a product.

Reading list

We've selected 14 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 Introduction to Network Security.
Provides a comprehensive treatment of cryptography and network security, offering additional depth and breadth to the course material.
Provides a comprehensive overview of computer networking, covering a wide range of protocols and technologies relevant to this course.
Covers the fundamentals of network security, providing a deeper understanding of the vulnerabilities and threats discussed in this course.
Delves into the technical details of TCP/IP protocols, providing in-depth coverage of the topics discussed in this course.
Offers insights into the techniques and methods used by hackers, enhancing the understanding of vulnerabilities and exploits discussed in this course.
Offers a practical approach to network security assessment, complementing the theoretical concepts discussed in this course.
Provides a broader perspective on security engineering principles, including network security aspects covered in this course.
Offers a practical approach to network security technologies, including firewalls and VPNs, complementing the theoretical concepts discussed in this course.
Offers a comprehensive overview of network management, providing additional context for the security aspects covered in this course.

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