Best Free CS: Systems, Security & Networking Courses & MOOCs

Coursera

INSEAD

Web3 and Blockchain Fundamentals (Coursera)

Security & Networking

Dive into the world of Web3 and blockchain with our foundational course designed to demystify these revolutionary technologies. Explore how blockchain is reshaping digital value exchange and understand the principles behind the next generation of the Internet, known as Web3. Whether you're new to the topic or looking to deepen your understanding, this course provides a clear path to grasping the core concepts and potential applications of blockchain and Web3.

Nov 9th 2026

1 Week

Digital Transformation Blockchain Smart Contract

Coursera

University of Maryland, College Park

A Strategic Approach to Cybersecurity (Coursera)

Security & Networking

Discover how to safeguard your organization's digital assets with our 'A Strategic Approach to Cybersecurity' course. Designed for both technical and non-technical individuals, this course provides a thorough understanding of cybersecurity principles and strategies to effectively combat cyber threats. Whether you're new to the field or looking to enhance your expertise, join us in mastering the art of protecting information systems.

Nov 9th 2026

5-12 Weeks

Security Cybersecurity Coursera Plus

Coursera

Akamai Technologies, Inc.

Networking Fundamentals (Coursera)

Security & Networking

Dive into the world of Networking Fundamentals with our beginner-friendly online course. Whether you're new to IT or looking to refresh your basics, this course covers essential topics like network components, OSI & TCP/IP models, protocols, and data transmission methods. Get started on building a robust understanding of computer networking today!

Nov 9th 2026

4 Weeks

TCP/IP Networking Internet Protocol

Coursera

LearnQuest

Enhancing Mac Security: Strategies for Protection (Coursera)

Security & Networking

Discover how to fortify your digital life with our 'Enhancing Mac Security' course, designed for beginners eager to learn about safeguarding their Mac workstations. This course will guide you through fundamental security features, threat assessment, and proactive management techniques. You'll gain valuable insights into automating security processes and adopting top-notch practices that ensure robust protection for your Mac.

Nov 9th 2026

3 Weeks

Security Mac OS X Network Security

Coursera

Illinois Tech

Introduction to Data Networks and the Internet - Master's (Coursera)

Security & Networking

Dive into the world of data networks and the Internet with our expert-led online course designed to equip you with a deep understanding of current and evolving network technologies. Explore key concepts such as Ethernet, 802.11, routing, switching, OSI and TCP models, DNS, SNMP, DHCP, and more.

Nov 9th 2026

5-12 Weeks

Network Networks Internet

Coursera

Illinois Tech

Introduction to Data Networks and the Internet - Bachelor's (Coursera)

Security & Networking

Dive into the world of data networks and the Internet with our beginner-friendly online course designed for those seeking to understand the core principles of modern networking. Explore key topics such as Ethernet, 802.11, routing, switching, OSI and TCP models, DNS, SNMP, DHCP, and more. Gain a solid foundation in network technologies that power today's digital world.

Nov 9th 2026

5-12 Weeks

Networks Internet Protocols

Coursera

LearnQuest

Basics of Cisco Networking (Coursera)

Security & Networking

Dive into the world of computer networking with our beginner-friendly 'Basics of Cisco Networking' course on Coursera. Whether you're an aspiring network administrator or simply passionate about IT, this course offers a structured pathway to understanding and applying essential networking principles using Cisco devices. Learn at your own pace and gain practical skills in configuring routers and switches.

Nov 9th 2026

3 Weeks

Networks Switching Computer Networking

Coursera

Codio

SQL for Security Specialist (Coursera)

Security & Networking

Dive into 'SQL for Security Specialist', a comprehensive online course designed to enhance your skills in securing PostgreSQL databases. With a strong foundation in SQL already established, this course takes you through advanced concepts crucial for safeguarding data and optimizing database performance.

Nov 9th 2026

3 Weeks

Security Databases SQL

Coursera

Edureka

Gen AI in Cybersecurity (Coursera)

Security & Networking

Dive into a comprehensive exploration of Gen AI's role in modern cybersecurity. This course will equip you with the knowledge to leverage artificial intelligence for advanced threat detection, mitigation, and proactive defense strategies. Whether you're a novice or an experienced professional, this course offers insights into how AI can transform your approach to securing digital assets.

Nov 9th 2026

1 Week

Machine Learning Data Analysis Cybersecurity