by George Chrysovaladis Grammatikos | Nov 26, 2025 | Azure, Networking
You probably hear the word ‘route’ all the time as a network engineer. But what does it actually mean? A route is simply a direction. It tells a network packet to go from one IP address to another. In this short post, I’ll explain the differences...
by George Chrysovaladis Grammatikos | Oct 27, 2025 | Azure, Networking, Security
In today’s cloud era, securing cloud-hosted resources is important. In particular, Azure Cloud offers a security service called Azure Firewall that helps you control and monitor traffic in your Azure resources. This post outlines the key steps to configure your...
by George Chrysovaladis Grammatikos | Oct 3, 2025 | Azure, Network, Security
This article outlines one of the many ways to implement Azure Front Door, emphasising best practices and key considerations to ensure a successful deployment. As is known, Azure Front Door operates at Layer 7, which is the Application Layer. It means that it...
by George Chrysovaladis Grammatikos | Jul 27, 2025 | Azure, Compute
Here’s how to load a PEM private key into PuTTYgen, convert it to a PPK file, and set up PuTTY so you can connect to your Linux virtual machine with SSH key authentication. Step 1. Load the PEM Key in PuTTYgen Open PuTTYgen. At the top of the window, click File, then...
by George Chrysovaladis Grammatikos | Jul 25, 2025 | Azure, Compute, Networking
In this post, I will provide a guide on how to troubleshoot your Azure Function if it doesn’t function properly. Disclaimer: The instructions presented in this article are informed by my own experiences and the solutions I implemented while navigating similar...
