
Building secure IT infrastructure & helping newbies master cybersecurity | Founder @KillerVMs | Practical labs & real-world defense for African tech talent.
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Joined November 2018
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When the only tool you have is a hammer, every problem becomes a hit and smash problem.
We are mostly limited by our beliefs about life, based on interactions and patterns. This is why you’ll notice sometimes that mistakes repeat itself throughout history.
We need to step back and reevaluate our beliefs and systems…
Is the hammer 🔨 your only available tool at the moment?
Can it solve the problems on ground? Or do you need help?
This is a post for people going through a phase which they don’t know how to deal with.
Did it speak to you?
A few weeks ago I deployed Openclaw in a lab and created some micro services and tasks for personal work.
Fast forward to 3 weeks+ and I’m learning more about AI automation with @TechCrushHQ
It’s been a huge challenge setting up n8n exactly how I want it. I’m looking forward to wrapping up this program and becoming a full automation engineer 😌🙏🏾
OSPF stopped working mid-class on one switch 😂😂😂 while I was demonstrating a live class today.
After 5 mins I discovered it was a trunk port pvid issue. Resolved and laughed it off 😁🫶🏽
This was a network security and monitoring class.
Lesson learned: You need IT fundamentals for cybersecurity.
I didn't start my career as a "cybersecurity guy."
I started by learning how computers and networks actually worked. It took me a long time.
IT support
Networking
Servers
Firewalls
Infrastructure
Then security.
And that's one reason I think a lot of people are learning cybersecurity backwards today.
You can't properly secure infrastructure you don't understand.
So I'm changing what I share on this account.
I'll be documenting practical cybersecurity from the infrastructure up:
- Networking
- Windows & Active Directory
- Linux
- Firewalls
- Cloud
- Identity & Access Management
- Security Engineering
- Real attack and defence scenarios.
And instead of only telling you how something works, I'm going to increasingly build it, break it, and secure it.
That's also the thinking behind KillerVMs.
Less cybersecurity theory.
More understanding of what actually happens when things go wrong... Because they eventually do.
Mastering Windows Server 2025 - Fifth Edition from @jokra is hands down one of the best books I’ve read so far in windows server administration.
The modules are split in a way that I can use it as a guide at work and as an exam preparation material.
I think it’s a good book
If you should “EVER HAVE TO” withdraw all your cash because the world is ending the next day… What would you do with it?









