Structured Debian Learning Environment

Start with nothing.
Build everything.

LinksOS isn't a custom distro — it's a disciplined approach to Debian. Add tools only as you learn them. By Day 80 you've built your own security environment from the ground up — and you understand every piece of it.

// honest note:LinksOS is not a proprietary invention. It's a minimal Debian installation that anyone can replicate. The value is in the structured approach — what to install, when to install it, and why. The ISOs are convenience checkpoints, not magic.
0
Tools on Zero Day — clean slate
80
Days to a full security environment
3
ISO checkpoints available
0
Kali repo dependencies

Four Stages. One Environment.

Start from zero. Build as you learn. Download a checkpoint ISO if you're an advanced learner who wants to skip ahead — but understand what's in it first.

Zero Day

Minimal Debian

A clean Debian installation. No pre-loaded tools. No shortcuts. Just a base system and the 80-day curriculum waiting for you.

debian minimal xfce desktop bash git
▸ Recommended starting point
Day 30 ISO

Fundamentals Complete

Debian + everything built during Phase 1. Tech+, A+, and Security+ tools and configurations. A checkpoint for advanced learners.

ufw ssh rkhunter clamav rsync
▸ Coming soon
Day 60 ISO

Basic Security Complete

Phase 1 + 2 tools. CySA+, Network+, PenTest+, and Linux+ configurations built by the learner over 60 days.

nmap wireshark suricata metasploit burpsuite
▸ Coming soon
Day 80

Your Own Environment

No ISO needed. By Day 80 you've built your entire environment yourself. You know what's installed, why it's there, and how it works.

full security stack securityx ready custom built
▸ Build it yourself — that's the point

Why Not Just Use Kali?

Kali is a great distro for experienced practitioners. It's the wrong starting point for learners — and here's why.

Kali ships with hundreds of pre-installed tools. For a learner, that's a problem — not a feature. You end up with tools you don't understand, repo conflicts that break things unexpectedly, and no clear sense of what your environment actually contains.

LinksOS starts with nothing. Every tool you add, you understand. Every configuration you make, you can explain. That's the difference between a practitioner and someone who just has Kali installed.

Approach Kali Linux LinksOS
Starting point 600+ pre-installed tools Minimal Debian
Tool knowledge You may not know what's there You installed everything
Repo stability Rolling release, can break Stable Debian base
Learning curve Overwhelming for beginners One tool at a time
Portfolio value "I used Kali" "I built my environment"
TryHackMe compatible Yes Yes — optimized for it

The Approach

Simple in concept. Demanding in execution. Worth it.

01
Start with Zero Day
Install minimal Debian. No extras. Just the base system, a desktop environment, and your determination. This is your clean slate.
02
Follow the 80-Day Curriculum
Work through the link2cyber.com bootcamp day by day. Each day introduces concepts and tools. You install tools when the curriculum introduces them — not before.
03
Document Everything
Every tool installed, every command run, every lab completed — documented in your Obsidian vault and committed to GitHub. This becomes your portfolio.
04
Use TryHackMe for Labs
Hands-on practice happens in TryHackMe rooms mapped to each day's curriculum. No need for a separate attack lab — THM provides the environment.
05
Optional: Download a Checkpoint ISO
Advanced learners who want to skip Phase 1 or 2 can download the Day 30 or Day 60 ISO. But understand what's in it — or you've missed the point.
06
Day 80: You Built Your Environment
By the end you have a fully configured security environment you built yourself, a documented portfolio, and real knowledge of every tool in it.

Certification Alignment

LinksOS is built around the same CompTIA path as the link2cyber.com 80-day bootcamp.

CompTIA ITF+
Foundations · Days 1–10
CompTIA A+
IT Support · Days 1–25
CompTIA Security+
Core Security · Days 26–30
CompTIA CySA+
Analyst Track · Days 31–40
CompTIA Network+
Networking · Days 41–44
CompTIA PenTest+
Offensive · Days 45–50
CompTIA Linux+
Linux Systems · Days 51–60
SecurityX (CAS-005)
Advanced · Days 61–80
TryHackMe
Hands-on labs · All 80 days

Honest About What This Is

LinksOS is not a custom Linux distribution. It is a structured Debian learning environment — a methodology, not a product. Anyone can replicate it. The ISOs are convenience checkpoints that save time for advanced learners, nothing more.

The value is in the approach: starting with nothing, adding tools deliberately, documenting everything, and building a portfolio that proves real knowledge rather than just access to pre-installed tools.

This project exists alongside the link2cyber.com 80-day bootcamp — they are designed to be used together. Built by Ben Linkous, a retired Army Master Sergeant from Pulaski, Virginia.