Forem: Abiodun Omotunde

How to Update an Azure virtual network

Abiodun Omotunde — Fri, 25 Jul 2025 22:26:46 +0000

An Azure Virtual Network (VNet) is your private network in the cloud. It allows secure communication between Azure resources, the internet, and on-premises systems. You can customize it with subnets, define access using network security groups, and control traffic through routing and firewall rules. VNets are the backbone of any secure, scalable infrastructure on Azure.

Here we will be learning about how to update an Azure Virtual Machine.

Step 1. Login to Microsoft Azure at https://portal.azure.com
Step 2. From the Azure portal home page, in the search box, enter virtual networks.
Step 3. Select virtual networks under services.
Step 4. Select the virtual network you created.

Step 5. From the guided-project-vnet blade, under settings, select Subnets

Step 6. To add a subnet, select + Subnet.

Step 7. For Subnet purpose leave it as Default.
Step 8. For Name enter: ftpSubnet.
Step 9. Leave the rest of the settings alone and select Add

Step 10. Select Home to return to the Azure portal home page

Congratulations you’ve completed the creation of a subnet. This subnet is only going to be used for SFTP traffic. To increase security, you need to configure a Network security group to restrict which ports are allowed on the subnet

Create a network security group

From the Azure portal home page, in the search box, enter virtual networks.
Select virtual networks under services.
Select Network security groups.

Select + Create.

Verify the subscription is correct.
Select the resource group you created.
Enter ftpNSG for the network security group name.
Select Review + create.

Once the validation is complete, select Create.
Wait for the screen to refresh and display Your deployment is complete.
Select Go to resource.

Create an inbound security rule

Under settings, select Inbound security rules.
Select + Add.
Change the Destination port ranges from 8080 to 22.
Select TCP for the protocol.
Set the name to _ftpInbound._
Select Add.
Select Home to return to the Azure portal home page.

Congratulations – you’ve created a new Network security group and configured rules to allow inbound FTP traffic. Now, you’ll need to associate the new network security group with the ftpSubnet.

Associate a network security group to a subnet

From the Azure portal home page, in the search box, enter virtual networks.
Select virtual networks under services.
Select the virtual network you created.
Under settings, select Subnets.
Select the ftpSubnet you created.
On the Edit subnet page, under the Security section heading, update the Network security group field to ftpNSG.
Select Save.

If you have followed up to this point, well-done! you have just learnt how to Update an Azure virtual network.
See you on the next article, kindly like, comment and share!

Provide storage for the IT department testing and training

Abiodun Omotunde — Wed, 16 Jul 2025 16:27:12 +0000

What is a storage account in Azure:

A storage account in Azure is like your personal vault in the cloud—it’s where all your data lives when you use Azure’s storage services. Think of it as the foundation for storing files, blobs, tables, queues, and more.

in this article we will be focusing on the following,

1.Create a resource group and a storage account.

In the Azure portal, search for and select Resource groups

Select + Create.

Give your resource group a name.

Select a region.

Select Review and create to validate the resource group.

Select Create to deploy the resource group.

2.Create and deploy a storage account to support testing and training.

In the Azure portal, search for and select Storage accounts.

Select + Create.

On the Basics tab, select your Resource group

Provide a Storage account name. The storage account name must be unique in Azure.

Set the Performance to Standard.

Select Review, and then Create.

Wait for the storage account to deploy and then Go to resource.

Configure simple settings in the storage account.

1.The data in this storage account doesn’t require high availability or durability. A lowest cost storage solution is desired. Learn more about storage account redundancy

in your storage account, in the Data management section, select the Redundancy blade.

Select Locally-redundant storage (LRS) in the Redundancy drop-down.

Be sure to Save your changes.

2.The storage account should only accept requests from secure connections

In the Settings section, select the Configuration blade.

Ensure Secure transfer required is Enabled.

3.Developers would like the storage account to use at least TLS version 1.2

In the Settings section, select the Configuration blade.
Ensure the Minimal TLS version is set to Version 1.2.

4.Until the storage is needed again, disable requests to the storage account.

In the Settings section, select the Configuration blade.
Ensure Allow storage account key access is Disabled.

Be sure to Save your changes.

5.Ensure the storage account allows public access from all networks

In the Security + networking section, select the Networking blade.

Ensure Public network access is set to Enabled from all networks.

Be sure to Save your changes.

Fundamental Concepts In Cloud Computing

Abiodun Omotunde — Sat, 15 Mar 2025 20:18:51 +0000

What is Cloud Computing?

Cloud computing simply means delivery of computing services—such as servers, storage, databases, networking, software, and more—over the internet also known as the CLOUD. This is used in place of the traditional owning of physical Hardwares or managing in-house data centers, people or organizations can access these resources on demand from cloud service providers.

What are the benefits of Cloud computing?

On-Demand Availability: Resources can be accessed anytime without requiring human interaction with the service provider.
Scalability: Users can easily scale resources up or down based on their needs.
Cost Efficiency: It eliminates the capital expense of buying hardware and software and setting up and running data centers.
Global Access: Services can be delivered from anywhere in the world with an internet connection.

Some common types of cloud computing services are:

Infrastructure as a Service (IaaS): Provides basic computing infrastructure.
Platform as a Service (PaaS): Offers tools for developers to build and deploy applications.
Software as a Service (SaaS): Delivers software applications over the internet.

What is Virtualization?

Virtualization is a technology that enables the creation of virtual replicas of computer resources like servers, operating systems, and applications and facilitates the production of virtual instances. These virtual instances can operate on a single physical server or host, making better use of the available hardware. Because resources can be separated from the underlying hardware thanks to virtualization, different virtual machines can operate independently on the same physical hardware without interfering with one another. It enables distant users to access desktops and apps without the requirement for physical hardware in desktop and application virtualization.

What is Scalability?

In the context of cloud computing, it means the capacity to grow or shrink computing resources, such as servers, storage, or processing power, to meet changing demand.

There are two main types of scalability:

Vertical Scalability (Scaling Up): Adding more power to an existing machine, such as upgrading its CPU, RAM, or storage, to accommodate higher workloads.
Horizontal Scalability (Scaling Out): Adding more machines or instances to a system to distribute the workload across multiple devices.

Scalability is crucial for systems to remain flexible, efficient, and reliable under varying demands.

What is Agility?

Agility means the ability to quickly deploy, scale, or modify resources to meet evolving business or operational needs. It allows organizations to roll out new applications, services, or updates faster, ensuring they stay competitive.

What is High Availability?

It refers to a system or service's ability to remain operational and accessible with minimal downtime, even in the face of failures, maintenance, or unexpected demands. It ensures that cloud-based services are resilient, reliable, and capable of handling failures without significant disruptions.

what is Fault Tolerance?

It refers to the ability of a system to continue functioning correctly, even when some of its components fail. The system is designed to detect and handle failures without interrupting its services or affecting the user experience.

What is Global Reach?

Global Reach refers to the ability of cloud providers to deliver services across multiple regions worldwide. This ensures users can access their applications and data with low latency and high performance, no matter where they are located.

What is the difference between Elasticity and Scalability?

Scalability is about preparing for growth and ensuring the system can meet future demands while Elasticity is the ability of a system to automatically scale resources up or down in response to real-time demand.