DC303

Intro to CDX: A cybersecurity training range built for real learning

"What am I working on?"

Building a flexible cybersecurity training range — one that can simulate everything from simple flat networks to complex multi-site enterprises with legacy systems, modern infrastructure, and all the messy realism in between.

Why?

Because learning security requires a safe space to fail. Red teamers need targets they can attack without consequences. Blue teamers need environments where missed detections are lessons, not disasters. Students need room to break things and understand why. CDX provides that space—fully isolated, fully contained, and ready to reset as often as the learning demands.

What makes it different?

The range isn't just isolated networks in a vacuum. There's underlying infrastructure that makes it feel like operating within a larger ecosystem—realistic enough to be worth a longer conversation if you're curious.

Where is this headed?

The project is open source and actively evolving. I'm building exercises, refining automation, and exploring opportunities to support hands-on training for security professionals, students, and teams who want something more than a typical lab experience. Interested in training, contributing, or learning more? I'd welcome the conversation.

Location: denhac classroom, denhac, 700 Kalamath Ave, Denver CO
Date & Time: February 27nd @ 7:00 p.m.
Note: Bring a laptop and ethernet cable if desired.