🔗 Register for FREE Infosec Webcasts, Anti-casts & Summits – Join Daniel Lowrie from Antisyphon Training in this Networking Fundamentals episode as he breaks down firewalls—your digital gatekeepers for network security. Learn what firewalls do, how they control traffic, the difference between stateful vs. stateless, and explore packet-filtering, proxy, and next-gen firewalls. Discover how firewall rules, policies, and placement protect networks from cyber threats. Perfect for IT pros and beginners building a strong cybersecurity foundation. Chapters 00:00 - Intro – Network Firewalls 00:25 - Infographic 01:35 - The Core Concept 03:38 - External Hardware Firewalls 05:04 - Internal Hardware Firewalls 05:30 - Host Based Software Firewalls 07:16 - Firewall Concepts 10:05 - Types of Firewalls - Packet Filtering 11:26 - Types of Firewalls - Stateful Inspection 13:08 - Types of Firewalls - Proxy 14:36 - Types of Firewalls - Next-Generation (NGFW) 16:07 - How Firewalls Work: Rules & Policies 21:23 - Practical Examples 25:58 - Benefits and Limitations 🔗 View our Pay-What-You-Can Courses  🔗 View the Antisyphon Course Catalog 🔗 View Our Live Training Course Calendar   ///Antisyphon Socials Twitter: Mastodon:  @Antisy_Training LinkedIn: Training Discord: ///Antisyphon Training Pay What You Can: Live Training: On Demand Training: ///Antisyphon Shirts ///Educational Infosec Content Black Hills Infosec YouTube: Black Hills Infosec Blogs: Wild West Hackin' Fest YouTube: Active Countermeasures YouTube: ///Backdoors & Breaches - Incident Response Card Game Backdoors & Breaches: Play B&B Online: Join us at our hybrid WWHF conferences — #bhis #antisyphon #infosec #CyberSecurity #training