Firewall Fundamentals Explained | Network Security for Beginners
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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
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