Blog
This is my blog section. Here all new blog posts will be showed in reverse-chronological order. Just a fancy way to say newest-top.
At the left, you can view the categories, and on the right you can find the tags and Table of contents.
What is TLS-RPT and how to configure
Monday, June 01, 2026 in Email security
Categories:
6 minute read
What is TLS-RPT TLS-RPT stands for SMTP TLS Reporting. It is an email security reporting mechanism that gives you reports about TLS encryption problems for incoming email to your domain. The main goal is simple: it helps you see if other mail servers …
Useful Azure links/tools
Thursday, May 14, 2026 in Microsoft Azure
Categories:
4 minute read
Introduction to page and tools I mostly use these tools regularly to check the latest Azure updates, watch service health, calculate costs, build diagrams, create documentation, run commands easily, learn new skills, and manage your resources better. …
Entra ID Custom CSS styling
Saturday, May 09, 2026 in Microsoft Entra
Categories:
7 minute read
Everybody who is managing Entra ID tenants ever saw this Custom CSS option during the wizard: With this option, you can style some options in your sign-in pages to your own likings, enabling you to virtually use any CSS control available. In this …
CWL Azure Red Team Certification - What I learned
Wednesday, May 06, 2026 in Microsoft Entra
Categories:
14 minute read
“If you don’t test your infrastructure as an attacker, someone else will.” The CWL Azure Red Team course I started on the site cyberwarfare.live by purchasing the course. I found this very fun looking and interesting to use that …
How I bumped up Microsoft Secure Score towards 100%
Thursday, April 30, 2026 in Secure Score
Categories:
4 minute read
My Microsoft Secure Score subpages These subpages contains the different pillars to address: 1. Identity 2. Devices 3. Apps 4. Data On these pages I did the recommendations step-by-step and added some non-counting advices of myself and some things I …
Microsoft Secure Score - Data
Thursday, April 23, 2026 in Secure Score
Categories:
6 minute read
Before we begin I collected all the options of the Microsoft Entra ID Identity Secure Score on this page, and we will address them all. I also added some industry-accepted options which are not in the secure score framework but are really helpful in …
Welcome to justinverstijnen.nl v2
Monday, April 20, 2026 in Archive
less than a minute
Welcome to justinverstijnen.nl v2 Welcome to my completely renewed website. The past month I’ve been busy rebuilding my old Wordpress website to a completely new website based on GitHub Pages. I wanted to enhance this website on the following …
Getting started
Monday, April 20, 2026 in Blog
3 minute read
Welcome to my blog section. In my blog posts, I describe the steps I took to make things work and/or explain how it works. The navigation on this page is relatively easy and I will do my best to explain all features of the blog to you as a manual. 1. …
Microsoft Secure Score - Apps
Thursday, April 16, 2026 in Secure Score
Categories:
16 minute read
Before we begin I collected all the options of the Microsoft Secure Score for Apps on this page, and we I address them all. I also added some industry-accepted options which are not in the secure score framework but are really helpful in avoiding or …
Update your Kerberos configuration with Azure Virtual Desktop (RC4)
Thursday, April 09, 2026 in Azure Virtual Desktop
Categories:
6 minute read
Microsoft released that the Kerberos protocol will be hardened by an update coming in April to June 2026 to increase security. This was released by Microsoft here: …