Microsoft Graph is a REST API that allows you to interact with Microsoft 365 services. You can use it to automate tasks such as creating users, updating their properties, or exporting data. In this post, I'll show you how to export user email addresses and aliases from Microsoft Entra using PowerShell. First, you need to install the Microsoft.Graph module: Install-Module Microsoft.Graph -Scope CurrentUser… [read more]

Someone asked me why I write blog posts. So, let's write a blog post about why I write blog posts! Reason 1: I forget things As a developer, you learn lots of new things every day. But my memory has limited capacity, so I also forget a lot of things. One solution is to dump part of my knowledge into blog posts. Also, as my blog is public, I can then use my favorite search engine to find things when… [read more]

Automated tests are important to ensure the quality of your application. In the literature, you'll find many kinds of automated tests such as unit tests, integration tests, functional tests, smoke tests, and so on. I don't like this naming because some tests don't fit in a category and people give different meanings to them making it. Tests are about trade-offs: Confidence: Does the test ensure the… [read more]

Raspberry Pi's are very useful, but I find the LEDs very annoying. In this post, I describe how to disable all LEDs on a Rasberry PI. note Tested on Raspberry Pi 4B and Raspberry Pi 3B+ Connect to the Raspberry Pi with SSH Open the file /boot/config.txt as admin using sudo nano /boot/config.txt Add the following line at the end of the file: # Disable Power LED (Red) dtparam=pwr_led_activelow=off # Disable… [read more]

Roslyn analyzers and source generators are useful but it's not easy to start writing them. The documentation is not at the same level as .NET or ASP.NET Core. There are some good resources on the internet. In this post, I share some resources to help you write Roslyn analyzers and source generators. View Syntax tree and IOperation tree When you write a Roslyn analyzer, you need to understand the syntax… [read more]

The Windows Server image contains a .wim file which is bigger than 4GB. This is a problem because FAT32 does not support files bigger than 4GB. To solve this problem, we need to split the .wim file into smaller files. This can be done with the dism command. The following script extracts the content of the ISO file, splits the .wim file, formats the USB drive, and copies the files to the USB drive. # TODO… [read more]

Browsing web pages without an AdBlocker is a pain. You have to wait for the page to load, and then you have to close the popups, cookie banners, and ads. Some pages are unusable without an AdBlocker. I think it's a must-have for everyone. There are multiple reasons to use an AdBlocker: Reduce annoyances: ads, popups, banners, social media buttons, etc. Privacy: Remove trackers Performance: Don't waste… [read more]

By default, PowerShell doesn't stop the script when an error occurs. Instead, it writes the error to the error stream and continues executing the script. You can change this behavior by setting the $ErrorActionPreference variable to Stop. When you do this, PowerShell stops the script when an error occurs. PowerShell has two different kinds of commands: cmdlets and native commands. For example,… [read more]

A security audit for package managers like NuGet is indeed a critical process for ensuring the security of software projects. NuGet has a feature to assist with this process. It can run a security audit with the dotnet restore command, which checks your dependencies against a list of known vulnerabilities from the GitHub Advisory Database. If vulnerabilities are found, you can update the affected packages… [read more]

Activator.CreateInstance(Type) allows you to create an instance of a type without knowing the type at compile time. For example, you might want to create an instance of a type based on a configuration file or a user input. Anytime you cannot use the new keyword you can use Activator.CreateInstance(Type). Most people expect this method to return a non-null object as you explicitly ask to create a new… [read more]