🎯 Objective
Create a Virtual Network (VNet) in Azure to enable secure communication between Azure resources such as Virtual Machines, databases, and services.
A VNet allows resources to communicate privately within Azure, and optionally with on-premises networks or the internet.
🌐 What is a Virtual Network (VNet)?
A Virtual Network (VNet) is a logically isolated network in Azure, similar to a traditional network in a data center.
It allows Azure resources to:
Communicate securely with each other
Connect to the internet
Connect to on-premises networks (VPN or ExpressRoute)
Example address space
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10.0.0.0/16📌 Key Components of a VNet
🛠️ Steps to Create a VNet (Azure Portal)
1. Sign in to Azure
Go to the Azure Portal: https://portal.azure.com
1. Navigate to Virtual Networks
Click Create a resource
Search for Virtual Network
Click Create
1. Basic configuration
Subscription: select your subscription
Resource Group: select existing or create new
Virtual network name: for example devops-vnet
Region: choose your preferred region
1. Configure address space
Define the VNet IP range, for example:
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10.0.0.0/16This range will be used to create subnets inside the VNet.
1. Create a subnet
Example:
This subnet will host resources such as VMs.
1. Review and create
Click Review + create
Click Create
Azure will deploy the virtual network.
🔍 Verify the VNet
Navigate to:
Virtual Networks → devops-vnet
You should see:
Address space
Subnets
Connected resources
⚠️ Important Notes
VNets allow secure communication between Azure resources.
Subnets divide the network into smaller segments.
NSGs can be used to control inbound and outbound traffic.
Plan IP ranges carefully to avoid network conflicts.