Book Image

Azure Networking Cookbook, Second Edition - Second Edition

By : Mustafa Toroman
Book Image

Azure Networking Cookbook, Second Edition - Second Edition

By: Mustafa Toroman

Overview of this book

Azure's networking services enable organizations to manage their networks effectively. With the Azure Networking Cookbook, you’ll see how Azure paves the way for an enterprise to achieve reliable performance and secure connectivity. This updated second edition will take you through the latest networking features in Azure. The book starts with an introduction to Azure networking, covering basics such as creating Azure virtual networks, designing address spaces, and creating subnets. You’ll create and manage network security groups, application security groups, and IP addresses in Azure using easy-to-follow recipes. As you progress through the book, you’ll explore various aspects such as DNS and routing, load balancers, Traffic Manager, and site-to-site, point-to-site, and VNet-to-VNet connections. This cookbook covers all the functions crucial to understanding cloud networking practices and being able to plan, implement, and secure your network infrastructure with Azure. You’ll not only upscale your current environment but also get well-versed with monitoring, diagnosing, and ensuring secure connectivity. The book will help you grasp best practices as you learn how to create a robust environment. By the end of this Azure cookbook, you’ll have gained hands-on experience developing cost-effective solutions that can facilitate efficient connectivity in your organization.
Table of Contents (15 chapters)
14
Index

Creating rules with an NSG and an ASG

As a final step, we can use NSGs and ASGs to create new rules with better control. This approach allows us to have better control of traffic, limiting incoming traffic not only to a specific subnet but also only based on whether or not the resource is part of the ASG.

Getting ready

Before you start, open your browser and go to the Azure portal at https://portal.azure.com. Locate the previously created NSG.

How to do it...

To create a rule using both an ASG and an NSG, we must follow these steps:

  1. In the NSG pane, find Inbound security rules. Select Add to add a new rule.
  2. For the source, select Application Security Group, and then select the ASG you want to use as the source. We also need to provide parameters for Source, Source port ranges, Destination, Destination port ranges, Protocol, Action, Priority, Name, and Description. An example is shown in Figure 3.15:
    Adding an inbound security rule by providing various parameters

Figure 3.15: Adding an inbound security rule

How...