Network Segmentation Explained: DMZs, NAT, VLANs & Security Zones | CompTIA Security+

Описание: Most breaches don’t start with magic hacks. They start because someone designed a flat, sloppy network. 🐺📉

In this episode of CompTIA Security+ (Domain 3), Professor Piggy builds a "Castle" to keep The Wolf out. We explore Network Architecture and the art of Segmentation. Learn why you never connect your "Keep" (Intranet) directly to the "Forest" (Internet), and how to build the perfect "Market Square" (Screened Subnet/DMZ).

We break down the critical differences between Physical Isolation (Air Gaps) and Logical Segmentation (VLANs), and why NAT is not a security tool.

🔑 KEY TOPICS:
The Castle Analogy: Intranet vs. Extranet vs. Internet.
Screened Subnets (DMZ): Where to put your public servers.
NAT & PAT: Why hiding your IP is obfuscation, not security.
Air Gaps: The ultimate separation (and how they still fail).
VLANs: Logical separation for HR, Voice, and Data.
Traffic Types: East-West vs. North-South explained.
Proxies & UTM: Forward Proxies, Reverse Proxies, and Unified Threat Management.
Jump Servers: The only safe way to access critical zones.

⚠️ EXAM ALERTS:
**NAT is NOT Security**: It is obfuscation. Do not confuse the two on the exam!
**Jump Servers**: Hardened systems used as a single entry point to a secure zone.
**Air Gaps**: Can still be breached by physical media (USB) or insiders.

👇 TIMESTAMPS:
0:00 Introduction to Network Segmentation
0:50 Castle Analogy (Intranet, Extranet, Internet)
1:51 Screened Subnet (DMZ)
3:17 Network Address Translation (NAT) & Port Address Translation (PAT)
4:42 Physical Isolation (Air Gaps)
5:22 Logical Segmentation (VLANs)
6:06 Traffic Types (East-West vs. North-South)
6:31 Specialized Guards (Proxies & UTM)
7:50 Jump Servers
8:18 Exam Alerts & Summary

✅ Subscribe for more Professor Piggy lessons!
#CompTIA #SecurityPlus #SY0701 #NetworkArchitecture #DMZ #VLAN #ProfessorPiggy #Cybersecurity