Network Security & Firewall Management
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TCP/IP Security and Threat Modeling
The TCP/IP Stack Through a Security Lens
Preview
Building a Network Threat Model
Common Network Threats and Their Defenses
3 lessons
Firewall Rules ACLs and DMZ Design
How Firewalls Decide What to Allow
Writing and Maintaining Access Control Lists
Designing a DMZ and Segmented Zones
3 lessons
Intrusion Detection and Prevention
What IDS and IPS Systems Do
Deploying and Tuning a Detection Engine
Turning Alerts into Response
3 lessons
VPN Technologies and Encrypted Tunnels
How VPNs Protect Traffic in Transit
Comparing IPSec SSL/TLS and WireGuard
Designing Secure Remote Access
3 lessons
Network Segmentation and VLAN Security
Why Segmentation Contains Damage
Implementing and Securing VLANs
Microsegmentation and Modern Isolation
3 lessons
Security Monitoring with SIEM
What a SIEM Does and Why It Matters
Designing Effective Detection Rules and Dashboards
Building a Continuous Monitoring Practice
3 lessons
Firewall Rules ACLs and DMZ Design
How Firewalls Decide What to Allow
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