Security Lab: Network Isolation

Objective

Configure network security with VNets, subnets, and NSGs.

What I Learned

• How to create Virtual Networks with public and private subnets
• How to create Network Security Groups with inbound rules
• How to attach NSGs to subnets for traffic filtering

Architecture

• VNet with /16 address space
• Public subnet (10.0.1.0/24) and Private subnet (10.0.2.0/24)
• NSG allowing only HTTP (port 80) inbound

Key Takeaway

Defense-in-depth starts at the network layer with proper segmentation and least-privilege firewall rules.

Author

Kosisochukwu Ugochukwu — SKILL.SCH Cloud Lab