Why advanced networking matters in Azure - See It in Action

Why Advanced Networking Matters in Azure

📖 Scenario: You are working for a company that wants to improve its cloud network setup on Microsoft Azure. They want to understand why advanced networking features are important for their cloud infrastructure.Imagine you are setting up a simple virtual network and then adding configurations to show how advanced networking helps with security, traffic control, and connectivity.

🎯 Goal: Build a basic Azure virtual network configuration step-by-step, then add advanced networking settings like subnets, network security groups, and route tables to demonstrate their importance.

📋 What You'll Learn

Create an Azure virtual network with a specific address space

Add a subnet to the virtual network

Create a network security group with a rule to allow HTTP traffic

Associate the network security group with the subnet

💡 Why This Matters

🌍 Real World

Advanced networking in Azure helps companies secure their cloud resources, control traffic flow, and connect different parts of their cloud infrastructure safely and efficiently.

💼 Career

Understanding how to configure virtual networks, subnets, and security groups is essential for cloud engineers and architects working with Azure to build secure and scalable cloud environments.

1

Create an Azure virtual network

Create a variable called virtual_network that defines an Azure virtual network with the name myVNet and address space 10.0.0.0/16.

Azure

# Your code here

Need a hint?

Think of a virtual network as your cloud's private neighborhood. You need to give it a name and an address range.

2

Add a subnet to the virtual network

Create a variable called subnet that defines a subnet with the name mySubnet and address prefix 10.0.1.0/24. Then add this subnet to the virtual_network under the key subnets as a list containing this subnet.

Azure

virtual_network = {
    "name": "myVNet",
    "address_space": "10.0.0.0/16"
}
# Your code here

Need a hint?

A subnet is like a street inside your neighborhood. You define its name and address range, then add it to your virtual network.

3

Create a network security group with a rule

Create a variable called nsg that defines a network security group named myNSG. Add a security rule inside nsg named AllowHTTP that allows inbound TCP traffic on port 80 from any source.

Azure

virtual_network = {
    "name": "myVNet",
    "address_space": "10.0.0.0/16"
}

subnet = {
    "name": "mySubnet",
    "address_prefix": "10.0.1.0/24"
}

virtual_network["subnets"] = [subnet]
# Your code here

Need a hint?

Think of a network security group as a guard that controls who can enter your subnet. You create rules to allow or block traffic.

4

Associate the network security group with the subnet

Add the key network_security_group to the subnet dictionary and set its value to the nsg variable.

Azure

virtual_network = {
    "name": "myVNet",
    "address_space": "10.0.0.0/16"
}

subnet = {
    "name": "mySubnet",
    "address_prefix": "10.0.1.0/24"
}

virtual_network["subnets"] = [subnet]

nsg = {
    "name": "myNSG",
    "security_rules": [
        {
            "name": "AllowHTTP",
            "protocol": "Tcp",
            "direction": "Inbound",
            "access": "Allow",
            "priority": 100,
            "source_address_prefix": "*",
            "destination_port_range": 80
        }
    ]
}
# Your code here

Need a hint?

Associating the security group with the subnet means the rules apply to all traffic in that subnet.