Azure Networking Setup

Azure / Networking / Setup

Introduction

This guide walks you through the essential steps required to set up a secure and scalable Azure networking environment for your applications. You'll learn how to create a Virtual Network (VNet), configure subnets, attach Network Security Groups (NSGs), and provision a Public IP address.

Prerequisites

  • An active Azure subscription.
  • Azure CLI installed (version 2.45+).
  • Basic understanding of networking concepts.

Step‑by‑Step Setup

1. Create a Resource Group

az group create --name MyResourceGroup --location eastus

2. Create a Virtual Network

az network vnet create \
    --resource-group MyResourceGroup \
    --name MyVNet \
    --address-prefix 10.0.0.0/16 \
    --subnet-name FrontEndSubnet \
    --subnet-prefix 10.0.1.0/24

3. Create a Network Security Group

az network nsg create \
    --resource-group MyResourceGroup \
    --name FrontEndNSG

Allow inbound HTTP and HTTPS traffic:

az network nsg rule create \
    --resource-group MyResourceGroup \
    --nsg-name FrontEndNSG \
    --name AllowHTTP \
    --protocol tcp \
    --priority 1000 \
    --destination-port-range 80 \
    --access Allow
az network nsg rule create \
    --resource-group MyResourceGroup \
    --nsg-name FrontEndNSG \
    --name AllowHTTPS \
    --protocol tcp \
    --priority 1010 \
    --destination-port-range 443 \
    --access Allow

4. Associate NSG with Subnet

az network vnet subnet update \
    --vnet-name MyVNet \
    --name FrontEndSubnet \
    --resource-group MyResourceGroup \
    --network-security-group FrontEndNSG

5. Create a Public IP Address

az network public-ip create \
    --resource-group MyResourceGroup \
    --name FrontEndPublicIP \
    --sku Standard \
    --allocation-method Static

6. Deploy a Virtual Machine (example)

az vm create \
    --resource-group MyResourceGroup \
    --name FrontEndVM \
    --image UbuntuLTS \
    --admin-username azureuser \
    --generate-ssh-keys \
    --vnet-name MyVNet \
    --subnet FrontEndSubnet \
    --public-ip-address FrontEndPublicIP \
    --nsg FrontEndNSG

Verification

List the configured resources to ensure everything is created correctly:

az network vnet list -g MyResourceGroup -o table

Next Steps