Network Security Fundamentals to Mastery: Firewalls, DNS, Subnets
Explore an exhaustive collection of chapters designed to guide you from foundational concepts to mastery in network security. This resource delves deep into firewalls, DNS, subnets, packet analysis, and advanced cybersecurity practices, enhanced with real-world examples and case studies. Stay updated with the latest information and techniques available as of December 2025.
Chapters
- 01 The Digital Foundation: Networking Essentials 12m
- 02 Subnetting Demystified: Organizing Your Network 15m
- 03 DNS: The Internet's Address Book 16m
- 04 Firewall Fundamentals: Your Network's First Line of Defense 14m
- 05 Configuring Firewalls: Rules Across Operating Systems 15m
- 06 Deep Dive into DNS: Zones, Security, and Troubleshooting 15m
- 07 Introduction to Packet Analysis with Wireshark 13m
- 08 Network Monitoring: Performance, Security, and Troubleshooting 14m
- 09 Advanced Firewall Architectures and Best Practices 21m
- 10 Advanced Packet Analysis for Troubleshooting & Threat Hunting 13m
- 11 Designing Secure Networks: Zero Trust and Segmentation 15m
- 12 Understand Cybersecurity Principles, Threats, and Defenses 15m
- 13 Project: Simulating Networks with Cisco Packet Tracer 15m
- 14 Project: Building a Secure Home/Lab Network 25m
- 15 Project: Incident Response Simulation 12m
- 16 Logging, Auditing, and Compliance in Network Security 15m
- 17 Techniques for Network Performance Optimization and Troubleshooting 17m
- 18 Staying Ahead: Emerging Threats and Future Trends 14m