- Lab
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Build and Secure an Azure Virtual Network
In this guided Azure networking lab, you will deploy a virtual network with two subnets, run a CLI script to provision Ubuntu VMs, create subnet-level network security groups to layer on top of existing NIC-level rules, and test cross-subnet connectivity to build practical intuition for how Azure evaluates traffic across multiple NSG layers.
Lab Info
Table of Contents
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Challenge
Deploy a Virtual Network and Provision Virtual Machines
- Deploy an Azure virtual network with two subnets designed for a web-facing tier and an application tier.
- Run a CLI script in Cloud Shell to provision two Ubuntu virtual machines with NIC-level network security groups allowing SSH access.
- Verify the deployed environment by reviewing the virtual network, subnets, VMs, and NIC-level NSGs in the Azure portal.
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Challenge
Create Subnet-Level Network Security Groups for Layered Security
- Create subnet-level network security groups and associate them with the appropriate subnets.
- Observe how Azure evaluates inbound traffic across subnet-level and NIC-level NSGs.
- Configure inbound rules to allow SSH and HTTP traffic for the web-facing subnet while blocking all other traffic by default.
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Challenge
Test and Troubleshoot Network Connectivity Across Subnets
- Test connectivity between virtual machines across subnets within the same virtual network.
- Use Azure's effective security rules view to understand how multiple NSG layers combine to control traffic.
- Verify that the application-tier VM is reachable only from within the virtual network and not directly from the internet.
Real skill practice before real-world application
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