Blog
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CISSP – Block Cipher’s Modes of Operation, Explained without the Math
Somewhere in the CISSP Symmetrical Cryptography domain there’s some pages and information about something called “modes of operations” and moves on quite quickly. I know the CISSP is very surface level knowledge with the different topics but I found this to be very interesting and I wanted to dig deeper – especially because some practice…
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CISSP – How to own something you can’t touch
Now after I got much more time again on my hands, I’m back again on grinding through my CISSP prep. Every now and then a topic looks easy on the surface until you actually sit down and try to explain it. One of those areas was the Intellectual Property part of this study session. Copyright,…
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Meet the Linux Kernel: The Boss behind every Linux System
In one of my new years resolution for 2026 I said to myself that I’d be reading more books, to further my vocabulary and skills. That is a ever evolving aspect I’d like to chase my whole life. In that pursuit I recently picked up a Book called “How Linux works: What every superuser should…
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Azure PoC Project: A Practical RAG Document Search Application
Disclaimer: This is not intended to be a step by step guide. The goal with this project was to get more hands-on practice with the Azure AI capabilities while solving a real world problem I have annoyingly faced not too long ago.The best-practices were not strictly followed – everything is ClickOps’ed and some other stuff…
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Faking On-Prem in the Cloud: Building an EntraID Hybrid lab
Every now and then I want to actually touch a technology rather than just reading about it all the time. This week it was about EntraID Hybrid environments – the bridge between traditional on-premises active directory and Microsoft EntraID (formerly known as Azure AD). I wanted to create a working environment where on-prem user accounts…
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Trying to install Arch Linux on my old laptop
Seven hours. That’s how long it took me to get a black screen that simply said “No bootable Device found”. Not a fancy desktop, not a login prompt. Just arch linux completely unimpressed with my efforts. /arch by the way Everyone in IT has heard it at least once: ‘I use Arch, by the way’.…
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Who am I and what the goals are here
Since its my first Blog post today, I thought it could be a good idea to let you guys know who I am as a person and what my goals are with this blog. /whoami So my name is Casimiro Cometta, I am 28 years old, a proud father and husband. I work in IT…