Aidan Finn, IT Pro

In this post, I will explain how to solve the situation when an Azure Image Builder job fails with the following errors: connection error: unknown error Post “https://10.1.10.9:5986/wsman̶...

https://aidanfinn.com/?p=23807

After a quiet few pandemic years with no in-person events and the arrival of twins, my in-person presentation activity was minimal. My activity has started to increase, and there have been plenty...

https://aidanfinn.com/?p=23787

This post about Azure Virtual Network Manager is a part of the online community event, Azure Back To School 2024. In this post, I will discuss how you can use Azure Virtual Network Manager (AVNM)...

https://aidanfinn.com/?p=23755

In this post, I will discuss a recent scenario where we used Azure Route Server branch-to-branch routing to rescue a client. The Original Network Design This client is a large organisation with a...

https://aidanfinn.com/?p=23718

In this post, I will explain why Azure’s software-defined networking (virtual networks) differs from the cable-defined networking of on-premises networks. Background Why am I writing this post?...

https://aidanfinn.com/?p=23678

This post is about using either Network Rules or Application Rules in Azure Firewall for internal traffic. I’m going to discuss a common scenario, a “problem” that can occur, and how you ca...

https://aidanfinn.com/?p=23651

Microsoft recently announced a public preview of User-Defined Route (UDR) management using Azure Virtual Network Manager. I’ve taken some time to play with it, and here are my thoughts. Azure V...

https://aidanfinn.com/?p=23613

Have you wondered why an Azure subnet with no route table has so many default routes? What the heck is 25.176.0.0/13? Or What is 198.18.0.0/15? And why are they routing to None? The Scenario You ...

https://aidanfinn.com/?p=23591

This post contains a script that will find all Azure Private DNS Zones in a tenant and export information on screen and as markdown in a file. The post Script – Document All Azure Private DNS Z...

https://aidanfinn.com/?p=23582

In this post, I want to discuss how one should design network security in Microsoft Azure, dispensing with past patterns and combatting threats that are crippling businesses today. The Past Netwo...

https://aidanfinn.com/?p=23520

This is my updated post on providing information on what the MVP Summit is, what to expect, and some useful tips/tricks in the neighborhood. This is a big update on a post that I wrote in 2012. W...

https://aidanfinn.com/?p=23463

This post will explain how you can connect your Azure network(s) with Oracle Cloud Infrastructure (OCI) via the Oracle Cloud Interconnect. Background Many mid-large organisations run applications...

https://aidanfinn.com/?p=23433

This post is going to explain why you should not be putting any compute into your hub VNet. Background I was looking at some Azure Landing Zones (reference architectures) from Microsoft before th...

https://aidanfinn.com/?p=23391

In this Festive Tech Calendar post, I am going to explain how to get Private Endpoints working in the real world. Thank you to the team that runs Festive Tech Calendar every year for the work tha...

https://aidanfinn.com/?p=23356

I will share my early experiences with Microsoft Copilot, the positives and negatives, clear up some false expectations, and explain why I think of Generative AI as a digital intern. What is Gene...

https://aidanfinn.com/?p=23330

October is the month of ghosts and monsters – Halloween (Samhain as we Celts originally called it). Read on to find out what ghouls and creatures crawled from under the floorboards of Azure Inf...

https://aidanfinn.com/?p=23246

Microsoft has announced that the default route, an implicit public IP address, is being deprecated 30 September 2025. Background Let’s define “Internet” for the purposes of this post. The I...

https://aidanfinn.com/?p=23261

Something new appeared in recent times: the “Managed Private Endpoint”. What the heck is it? Why would I use it? How is it different from a “Private Endpoint”? Some Background As you are ...

https://aidanfinn.com/?p=23229

September is a month of storms. There appears to have been lots of activity in the Azure cloud last month too. Everyone working on Azure should pay attention to the PAY ATTENTION! section. PAY AT...

https://aidanfinn.com/?p=23181

I spoke at Experts Live Europe last week and this post is a report of my experience at this independently run tech conference. Experts Live I cannot claim to be a historian on Experts Live Europe...

https://aidanfinn.com/?p=23155

This post is a part of the Azure Back to School 2023 online event. In this post, I will discuss using Microsoft Azure Export for Terraform, also known as Aztfexport and previously known as Azure ...

https://aidanfinn.com/?p=22990

Microsoft Ignite 2023 has been announced as a hybrid event. Let me explain why I have no interest in attending in person or taking part digitally. Technical Education One of the reasons that I be...

https://aidanfinn.com/?p=23126

This post brings you a summary of the infrastructure announcements from Azure that were made during August 2023. There are lots of announcements from Storage and a few interesting notes for VMs, ...

https://aidanfinn.com/?p=23097

Many people in Europe take the month of July off for vacation so they would have missed out on an unusually busy few weeks of announcements for Microsoft. This post summarises the infrastructure ...

https://aidanfinn.com/?p=23049

This post will show how you can use an Azure Linux virtual machine to implement SNAT on an ExpresssRoute circuit to a remote location. Scenario You must have a low-latency connection to a remote ...

https://aidanfinn.com/?p=23021