Azure Fundamentals: Lecture Notes

Introduction

• Series: Free learning series on Azure fundamentals
• Topic: Azure Network Peering and VPN Gateway
• Upcoming Topics: Azure DNS, Azure ExpressRoute
• Section: 2.2.5 (AZ-900 exam content)
• Resources: Free PDF files with section-by-section marking, previous episode links in the description

Recap from Last Episode

• Covered Topics: Virtual networking, Azure virtual networks, Azure virtual subnets
• Recommendation: Watch previous episodes for foundational understanding

Azure Virtual Network (VNet) and Subnets

Azure Virtual Network

• Definition: A representation of your own network in the cloud
• Usage: Enables secure communication for Azure resources (e.g., VMs) with each other, the internet, and on-premises networks

Azure Subnets

• Definition: Sub-networks within a virtual network
• Purpose: Configure routing tables and network security groups, improve maintainability and security
• Connection: Each network interface card (NIC) connects to one subnet in one virtual network

Azure VNet Peering

Overview

• Enables: Seamless connection between Azure virtual networks
• Functionality: VNet appears as one for connectivity purposes
• Traffic Routing: Through Microsoft backbone infrastructure, private IP addresses only, no public internet involved
• Regions: Supports peering across Azure regions
• Types:
  • Virtual Network Peering: Same Azure region
  • Global Virtual Network Peering: Across Azure regions

Benefits of VNet Peering

• Low latency, high bandwidth connection between resources
• Enables resource communication across virtual networks
• Data transfer capability between virtual networks
• Peering supported for different deployment models (Resource Manager and Classic)
• Supports Gateway Transit

Additional Resources

• Microsoft documentation and tutorials
• Detailed exercise on connecting virtual networks using VNet peering

VPN Gateway

Definition

• Type: Virtual Network Gateway
• Purpose: Send traffic between an Azure VNet and an on-premises location over public internet
• Components: Two or more Azure-managed VMs configured to a specific subnet called the gateway subnet
• Routing Tables and Services: Contained within the gateway subnet

Usage

• Send encrypted traffic between Azure networks over Microsoft network
• Each VNet can have only one VPN Gateway

Further Learning

• Microsoft documentation for detailed understanding
• Topics include VPN Gateway configuration, connectivity aspects, and planning table

Summary

• Today's Topics: VNet Peering and VPN Gateway
• Upcoming Topics: Azure DNS, Azure ExpressRoute

Conclusion

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• Follow: YouTube handle - @thetechblackboard
• Next Video: Stay tuned for further learning on Azure fundamentals