Blue Team

Welcome to DBB Sec Log

> Jul 29 2026 2 min read

Hey — welcome to DBB Sec Log, and thanks for stopping by.

If you’re wondering what this place is: it’s part learning journal, part public notebook, part “let’s see if I can actually explain this clearly” exercise. I’m David, and over the past while I’ve been heads-down building out a home cybersecurity lab from scratch — Proxmox cluster, a small Active Directory environment, a SIEM, detection rules, the works — with the goal of moving into a SOC Analyst / DFIR role.

This blog is where I’m going to write about that process, and about whatever else feels worth writing about along the way.

Why start a blog for this

I already keep detailed technical logs for myself — a private repo full of build notes, detection queries, and troubleshooting war stories. That’s great for me, but it’s not exactly readable, and it’s not really for anyone else. This blog is the other half: the version of the story written for humans, including the parts that don’t fit neatly into a GitHub README.

Some of what you can expect here:

  • Homelab build-outs — standing up new infrastructure, breaking it, fixing it, and writing down what I actually learned (as opposed to what the tutorial said would happen)
  • Detection engineering — running an attack technique, chasing it through log data, and building a rule that actually catches it
  • Lessons from the school of hard knocks — DNS problems, misconfigurations, the stuff that eats an entire Saturday and teaches you more than the easy wins do
  • The occasional non-security post — because this is my corner of the internet, not just a portfolio piece, and I’d rather it feel like a real person writes it

Why self-host this, on purpose

This blog itself is running on a small hardened Linux server I stood up specifically to have something real and internet-facing to defend and monitor — which is a fitting way to kick things off, since “build it, expose it a little, and learn from defending it” is basically the whole philosophy behind this project.

What’s next

Up next: the first real technical post, walking through a piece of the lab build and what it taught me. If you’re into blue team work, home labs, or just enjoy watching someone learn in public, stick around.

Thanks for reading — more soon.