Practical Networking Courses

Diffie-Hellman Key Exchange and Forward Secrecy

Explore Diffie-Hellman key exchange and forward secrecy. Learn simplified and real-world math behind this secure cryptographic method, enhancing your understanding of modern encryption techniques.

• YouTube
• 13 minutes
• Self-Paced
• Free Video

Cryptography Essentials - A Practical Approach to Real-World Digital Security

Discover the fundamentals of cryptography including hashing, symmetric/asymmetric encryption, digital signatures, and key exchange protocols essential for SSL, TLS, IPsec, and SSH security.

• YouTube
• 1 hour 22 minutes
• Self-Paced
• Free Video

Networking Fundamentals

Discover how data flows through the Internet by exploring network devices, the OSI model, and the complete journey of packets from hosts through switches to routers.

• YouTube
• 3 hours 25 minutes
• Self-Paced
• Free Video

Subnetting Mastery

Master IPv4 subnetting from basics to advanced techniques with practical problem-solving methods, time-saving tricks, and hands-on practice for network professionals.

• YouTube
• 3 hours 21 minutes
• Self-Paced
• Free Video

Complete Practical Networking Course - Packet Traveling, Subnetting, VLANs, Cryptography, and NAT

Master comprehensive networking fundamentals from packet flow and subnetting to VLANs, cryptography, and NAT through practical demonstrations and real-world examples.

• YouTube
• 6 hours 36 minutes
• Self-Paced
• Free Video

Network Address Translation

Master Network Address Translation fundamentals, exploring NAT vs PAT, static/dynamic configurations, and advanced policy implementations for IP address conservation.

• YouTube
• 1 hour 10 minutes
• Self-Paced
• Free Video

Packet Tracer Labs - VLANs, Switching, Routing, NAT, and Troubleshooting

Master hands-on networking through interactive Packet Tracer labs covering VLANs, switching, routing, NAT, DHCP, and troubleshooting with practical challenges.

• YouTube
• 3 hours 59 minutes
• Self-Paced
• Free Video

Access Control Lists (ACLs)

Master network security by implementing Access Control Lists to filter traffic, configure numbered and named ACLs, and optimize placement strategies for IPv4 and IPv6 networks.

• YouTube
• 1 hour 16 minutes
• Self-Paced
• Free Video

TCP: 12 Simple Ideas to Explain the Transmission Control Protocol

Dive deep into TCP with 12 key concepts, exploring sequence numbers, acknowledgements, window size, flow control, connection establishment, and termination. Master the intricacies of this crucial Internet protocol.

• YouTube
• 44 minutes
• Self-Paced
• Free Video

TCP vs UDP - Explaining Facts and Debunking Myths

Explore TCP and UDP protocols, comparing key features and debunking common myths. Gain a comprehensive understanding of their roles in network communication and data transmission.

• YouTube
• 20 minutes
• Self-Paced
• Free Video

Rebuilding an OSPF Topology Using Only the LSDB

Explore OSPF topology reconstruction using only the Link State Database. Analyze LSAs, understand router relationships, and compare single vs multi-area OSPF configurations.

• YouTube
• 30 minutes
• Self-Paced
• Free Video

Keychains, Key Rotation, and HMAC-SHA Keys for OSPF Authentication - Practical OSPF Lesson 21

Master OSPF authentication with key rotation, keychains, and HMAC-SHA. Enhance network security through practical demonstrations and configuration examples for seamless key changes.

• YouTube
• 32 minutes
• Self-Paced
• Free Video

OSI Model Layers 5, 6, and 7 - Session, Presentation, and Application Layers Explained

Explore the often-overlooked Session, Presentation, and Application layers of the OSI model. Understand their roles in data transmission between computers and how modern protocols implement these layers.

• YouTube
• 14 minutes
• Self-Paced
• Free Video

TLS 1.3 Handshake - Major Changes from Prior Versions

Explore major changes in TLS 1.3 handshake: shorter round trips, enhanced encryption, and improved key generation for better security and performance.

• YouTube
• 18 minutes
• Self-Paced
• Free Video

TLS 1.3 Cipher Suites - Key Changes and Improvements

Explore key changes in TLS 1.3 cipher suites, including simplified structure, fewer options, mandatory AEAD and forward secrecy, and the elimination of custom DH groups.

• YouTube
• 17 minutes
• Self-Paced
• Free Video