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

Changing the subnet size

Similar to the virtual network address space, we can change the size of a subnet at any time.

Getting ready

Before you start, open a web browser and go to the Azure portal at https://portal.azure.com.

How to do it…

In order to change the subnet size using the Azure portal, we must take the following steps:

  1. In the Virtual network pane, select the Subnets option.
  2. Select the subnet you want to change. In the Subnets option, enter a new value for the subnet size under Address range. An example of how to do this is shown in Figure 1.12:
    Entering the new value in the address range of the FrontEnd pane
    Figure 1.12: Changing the subnet size using the Azure portal
  3. After entering a new address range value, click Save.
  4. In the Subnets list, you can see that the changes have been applied and the address space has changed, as shown in Figure 1.13:
    Viewing the changes that are applied in the address space
Figure 1.13: Viewing changes made in the subnet address range

How it works…

When changing the subnet size, there are...