Cloud Computing

Hub-and-Spoke Networking for Security

Junior architects often put everything in one VNet. This lesson teaches the Hub-and-Spoke model for enterprise-grade security with a central firewall and application spokes.

Level: AdvancedCloud Computing

What You'll Learn

Hub-and-Spoke topology vs flat VNet design
Azure Firewall as the central hub security layer
VNet Peering: connecting hub to spoke networks
User-Defined Routes to force traffic through the firewall
Network Security Groups for spoke-level control
Spoke isolation: preventing spoke-to-spoke traffic
Configuring VNet Peering between hub and app spoke

What's Included

🧭AI Tutor🔒

Interactive learning path with AI-generated lessons read aloud by your personal tutor

🧪Practice Lab🔒

Step-by-step lab instructions with AI guidance — run in your own IDE or sandbox.

🎙️Mock Interviews🔒

AI interviewer asks tailored questions, gives real-time feedback and a score report

📝Evaluation🔒

MCQ questions (theory, practical, code) to test your knowledge and earn a badge

⚔️Challenge AI🔒

Compete head-to-head against AI on real production problems — judged on correctness, performance, scalability, code quality, and edge cases

Course Syllabus

Module 1: Hub-and-Spoke Architecture

  • •Why flat VNet designs fail at enterprise scale
  • •Hub-and-Spoke topology: components and traffic flow
  • •Azure Virtual WAN vs manual Hub-and-Spoke
  • •Shared services in the hub: firewall, DNS, VPN gateway
  • •Spoke isolation and segmentation principles

Module 2: Building the Hub

  • •Creating the hub VNet with dedicated firewall subnet
  • •Deploying Azure Firewall in the hub
  • •Firewall policy: application and network rules
  • •DNS proxy configuration for spoke name resolution
  • •Connecting on-premises via VPN or ExpressRoute

Module 3: Connecting Spokes

  • •Creating spoke VNets for different applications
  • •Configuring VNet Peering between hub and spoke
  • •User-Defined Routes: force all spoke traffic through firewall
  • •NSG rules for spoke-level ingress and egress control
  • •Capstone: hub firewall + two peered application spokes

You're all set

Everything in this course is unlocked.

Continue Learning →
✓AI Tutor
✓Practice Lab
✓Mock Interviews
✓Evaluation
✓Challenge AI