Virtual network
A virtual network is a logically isolated, software-defined network that connects virtualized resources and controls communication among them and with external networks.
Learn Docker in a Month of Lunches, Second Edition
A Docker network is a virtual network managed by Docker that enables communication between connected containers.
- How it is used
- Connects containers within applications while keeping their virtual addresses separate from the physical network.
- How deep it goes
- Works through network creation, container attachment, port publishing, and Compose configuration; stops short of cross-server networking.
- Examples
- Uses a published website, a named network for a NASA-image API, and a Compose-configured to-do service.
- What you can do after
- Operate/configure it with Docker commands or Compose to connect containers and publish only the host access an application needs.
Read how Learn Docker in a Month of Lunches, Second Edition explains virtual network →
Microsoft Azure in Action
A virtual network is a logically isolated network in a cloud environment that connects virtualized resources and controls their network traffic.
- How it is used
- Connects Azure VMs and other resources so they can exchange data with services, the internet, or on-premises networks.
- How deep it goes
- Defines VNet connectivity, explains address ranges and subnets, and shows creation; VM setup initially leaves detailed subnet choices for later.
- Examples
- Uses VM setup, a growing business network, a road-and-suburb analogy, and PowerShell VNet creation.
- What you can do after
- Apply it via Azure PowerShell to create a VNet, or select an existing VNet when creating a VM.
Read how Microsoft Azure in Action explains virtual network →
Google Anthos in Action
An Azure virtual network is an isolated virtual network in Microsoft Azure that provides connectivity for cloud resources.
- How it is used
- Provides required Azure networking infrastructure for deploying GKE clusters through Anthos on Azure.
- How deep it goes
- Identifies the deployment prerequisite and surrounding permissions but does not specify address ranges, subnets, routing, or configuration steps.
- Examples
- Uses the Anthos on Azure architecture as the concrete deployment example.
- What you can do after
- Operate/configure the Azure networking prerequisite within an Anthos on Azure cluster deployment.
Building Web APIs with ASP.NET Core
An Azure virtual network is an isolated network in Azure that provides connectivity and traffic control for deployed resources.
- How it is used
- Connects an Azure VM to an isolated network while restricting publicly reachable traffic.
- How deep it goes
- Configures network naming and inbound ports during VM creation, but leaves broader networking design and default settings unexplored.
- Examples
- Uses a resource-group-derived virtual-network name and permits HTTP and HTTPS while closing SSH and RDP.
- What you can do after
- Operate/configure an Azure VM deployment with a named virtual network and restricted public inbound ports.
Read how Building Web APIs with ASP.NET Core explains virtual network →
Related concepts
- containerused by · A software container is an isolated execution environment that packages an application and its dependencies while sharing the host operating system kernel.
- Azure resource grouppart of · An Azure resource group is a logical management container for organizing related Azure resources and managing them as a unit.
- subnetworkhas part · A subnetwork is a logical subdivision of an IP network with its own address range, routing scope, and network configuration.
- Azure Bastionused by · Azure Bastion is a fully managed Azure service that provides secure browser-based remote access to virtual machines through a virtual network without exposing them to the public internet.
- Docker Composeproduced by · Docker Compose is a tool for defining and running applications composed of multiple containers through declarative configuration.
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