Virtual Network
A fundamental part of Azure. All services are connected to a VNet. Includes an IP address range and subnets. Belongs to a single region and a single subscription.
- Resource Grouping - Group resources onto the same subnet to make it easier to keep an overview.
- Address Allocation - More efficient to allocate addresses to resources on a smaller subnet.
- Subnet Security - Use network security groups to secure individual subnets.
Subscriptions - A VNet belongs to just one subscription, but a subscription can have multiple VNets.
Regions - A VNet belongs to a single region. Every resource on the VNet must be in the same region too.
Cloud Advantages
- Scaling
- High Availability
- Isolation
- VNet Peering