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Tag: Azure networking

How to use the DNS settings in Azure Firewall?

January 9, 2024
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| Azure, Azure Compute, Azure Networking

Introduction: The Domain Name System (DNS) plays a crucial role in the infrastructure functioning of organisations. It acts as a phone book that translates domain names into their respective IP addresses so that machines can communicate with each other. Depending on their specific requirements, organisations can choose between their corporate DNS or Azure DNS for name resolution in a…

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What is a Private Subnet in Azure?

December 13, 2023
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| Azure, Azure Networking

“Have you ever thought about having a Private Subnet in Azure VNET? Let me tell you all about it. Trust me, you would want to take advantage of its benefits. We must use Azure Private Subnet to ensure the highest level of security and privacy for our network.” Background of Azure VNET and Subnet and Internet access To grasp…

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Easy ways to perform the Azure Firewall upgrade or downgrade?

November 14, 2023
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| Azure Networking

Keeping your Azure Firewall with the correct SKU is vital to maintaining the security and stability of your cloud infrastructure. You must follow precise steps to ensure peak performance and optimization for seamless and efficient firewall upgrades and downgrades. To help you with this, I have created a guide outlining the steps for upgrading or downgrading your Azure Firewall….

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The default Outbound internet access for Azure VMs is removed.

October 2, 2023
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| Azure, Azure Compute, Azure Networking

I recall conversing with a friend about the internet access settings for Azure Virtual Machines (VMs) around five to six years ago. The topic arose as we aimed to improve the VMs’ security by design and minimize internet access. The discussion centred on ways to enhance security by restricting internet access by default, which led us to impose restrictions…

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A Deep Dive into Azure Firewall Manager

September 24, 2023
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| Azure, Azure Networking, Cyber Security, Security Architectures

Before the public cloud, we depended on third-party software from firewall network device vendors to handle all firewall devices in our data centre. However, the transition to the public cloud posed operational hurdles when dealing with several cloud-based firewall devices. We needed software that could efficiently manage these devices or appliances centrally. Thankfully, cloud providers eventually introduced a centralised…

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How to secure Azure Web App with Front Door, web app access restrictions, and private endpoint as combined

September 15, 2023
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| Azure Networking, Security Architectures

Greetings! Today, I want to delve into a critical web app access security topic. Specifically, I will discuss using Azure services such as Azure Front Door, Azure Private Endpoint, and Azure Web App Access Restrictions to ensure your web app is well-protected against malicious attacks and unauthorized access. With the growing number of cybersecurity threats out there, it is…

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Azure Firewall Logs and Policy Analytics

September 10, 2023
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| Azure, Azure Networking, Security Architectures

Organizations can rely on Microsoft Azure Firewall, a cloud-based security solution, to safeguard their data and control network traffic. This powerful tool utilizes various techniques to prevent attacks, including intrusion detection and prevention systems and malware protection. Azure Firewall, businesses can easily manage traffic between different clouds and on-premises networks and between other regions and subnets within a cloud….

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Guide on resizing the address space of peered Azure virtual networks

September 4, 2023
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| Azure, Azure Networking

Users can seamlessly link multiple virtual networks by utilizing virtual network peering in Azure. This integration enables the networks to operate as a single entity for connectivity. When virtual machines interact across peered virtual networks, they leverage Microsoft’s backbone infrastructure for communication. Consequently, traffic is directed through Microsoft’s private network, similar to how traffic between virtual machines within the…

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How could you Deliver Secure and Scale the applications with Azure Cloud Networking services? – Part2

June 21, 2023
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| Azure, Azure Networking, Security Architectures

In this blog post series, I walk through different networking application delivery services with features and limitations on each service. To read about the Azure load balancer, please visit the first part of the blog post. In the second part of the networking series, let’s discuss the Azure application gateway, front door, and traffic manager. Azure Application Gateway Features: This is…

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How could you Deliver Secure and Scale the applications with Azure Cloud Networking services? – Part1

June 13, 2023
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| Azure, Azure Networking, Security Architectures

Azure Cloud provides a variety of networking capabilities that can be used together or separately to meet different customer requirements. Utilize the Azure Application delivery services to ensure the application is secure and safe. Azure provides four types of networking services: Connectivity Services: Integrate Azure and On-premise resources using one or more services in Azure. Services: Azure Vnet, Express…

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