Azure Virtual Network (VNet)
Azure Virtual Network (VNet) is the fundamental building block for your private network in Azure.
Key Features
- Isolation: VNets are isolated from one another by default.
- Connectivity: Connect VNets to each other (Peering) or to on-premise (VPN/ExpressRoute).
- Filtering: Filter traffic using Network Security Groups (NSGs) or Azure Firewall.
Use Cases
- Cloud Network: Create a private network for your cloud resources.
- Hybrid Cloud: Extend your on-premise network to Azure.
- Segmentation: Isolate workloads (e.g., Prod vs. Dev) into different subnets.
Key Concepts
- Subnets: Divide a VNet into smaller segments.
- Peering: Connect two VNets in the same or different regions.
- Private Link: Access Azure PaaS services (like SQL or Storage) over a private IP in your VNet.
- VPN Gateway: Encrypted traffic between an Azure VNet and an on-premises location over the public Internet.