What is Azure Virtual Network?

What is Azure Virtual Network?

Introduction Networking is a fundamental concept of computing workloads or data centers to the cloud. Your resources must communicate with each other and stay resistant against any outside threats or cyber events. Virtual networking facilitates communication between numerous computers, virtual servers and machines, or devices across offices and data centers. Virtual networks utilize traditional tools such as switches and network adapters, making routing and network configuration seamless.

Virtual networking enables network administrators to effectively modify the network without switching out or buying new hardware, flexibility in network provisioning, and the ability to move data across networks without worrying about security or availability. It is the base for cloud architectures and applications as it helps access, connect, modify, and secure cloud resources.

Why use an Azure Virtual Network?

The major reason you should go for the Azure virtual network is that it enables Azure resources to communicate.

There are some key scenarios as well that you can accomplish with a VNet, such as•

Communication of Azure resources with the internet

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Filtering network traffic Communication between Azure resources Integration with Azure services Communication with on-premises resources Routing network traffic

Apart from these network options, you can also change the communication settings to allow only inbound communication from the internet. That means you set up rules to add a Load Balancer or a public IP. Virtual Network Limits and Availability •

Limits

Azure Virtual Network has certain limits for Azure resources that you can deploy to the cloud. In most Azure Virtual Networks, the networking limits are set to maximum, but you can increase the limits if there's a need. For increasing networking limits, you can refer to the VNet limits page.

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Availability

The Azure Virtual Networks and the subnets span come with all availability zones in a region.

When there's a need to accommodate zonal resources, you don't have to divide them by availability zones.

Azure offers various services and tools to manage the cloud infrastructure. Azure Resource Manager is one of its key services that Azure Administrators rely on to manage the cloud resources effectively. Read the blog on Azure Resource Manager to learn how the service helps in moving resources in the cloud.

Elements of Azure Virtual Networks There are multiple functionalities and services that Azure VNets provide when you connect to Azure resources. These services are brought all together so that organizations have all the required tools in one place for smooth cloud deployment.

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Address Space

This comes first when you create a VNet; it means assigning a private IP address space in the range: RFC 1918. Further, this IP address space will contain other familiar IP addresses, like 192.168.0.0, 10.0.0.0, and 172.16.0.0. you may notice that more than one IP address ranges in a virtual network to create additional subnets.

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Subnets

The smaller segment of the virtual network is called Subnets. The main use of these Subnets is to VNet portions to specific (target) resources.

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Network Security Groups

Network Security Groups (NSG) protect subnets in the Virtual Network, and help filter out traffic from the network. For filtering the traffic, you first need to define the source and then destination; after that, you have to select the port and protocol for traffic identification.

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Routing and Peering

Azure is designed to automatically create the best routes between subnets, on-premises networks, virtual networks, and the internet. However, you can implement route tables that will help control traffic for each subnet.

For creating an Azure Virtual Network, you must be a Microsoft Azure Administrator.

Microsoft certified Azure Administrators create virtual networks and support the cloud team with their activities. Check out our Azure Administrator guide blog to learn more about their responsibilities and the training required.

AZ-104T00: Microsoft Azure Administrator: Overview This is among Microsoft's most demanding courses for IT Professionals, as it teaches how to become an Azure Administrator and learn everything related• • • • • • • • • • • • • • • • •

Azure subscriptions Configure virtual networking Secure identities Administer the infrastructure Manage network traffic Implement storage solutions Connect Azure and on-premises sites Implement web apps and containers Monitoring your solution.

Create and scale virtual machines Backup and share dataLearn how to use Azure Active Directory and how to secure identities to implement groups and users.

Managing your subscriptions and accounts, and using Role-Based Access Control.

The major tools required to manage infrastructure by an Azure Administrator.

Virtual networking concepts from a very basic level.

Basic storage features Azure virtual machines Features of intersite connectivity, including VNet Peering.

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Serverless computing in virtual networks.

Apart from the learning track, this Microsoft Azure Administrator webinar will help you implement, monitor, and maintain Azure solutions.

Prerequisites • •

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Basic understanding of the Active Directory concepts.

Understanding network configuration and technical terms such as virtual private networks (VPNs), TCP/IP, encryption technologies, Domain Name System (DNS), and firewalls.

Knowledge about on-premises virtualization technologies and VMs. Must know about backup, restore operations, and disaster recovery.

Why should you choose NetCom Learning?

Azure Virtual Network enables Azure resources to communicate and expertise in implementing, monitoring, and managing a Microsoft Azure environment.

NetCom Learning brings you the best Microsoft Azure Administrator training course. This course will teach you to manage your Azure subscriptions, secure identities, administer the Azure infrastructure, configure, create and scale virtual networking, implement web apps, manage network traffic, and more.