Lion Cipher Lab

Build a safe home lab: an isolated network for practice

Why it matters

A security lab is where you run software that is broken on purpose — vulnerable web apps, malware samples, tools that poke at other machines. If that software can reach the internet or your real home network, it can cause genuine harm. Building an isolated lab is exactly how professionals give themselves a safe place to break things: everything happens inside a sealed box that cannot touch anything you care about, and any mistake is undone in seconds.

What you'll learn

Steps in this lab

  1. Why isolation is the whole point
  2. The three networking modes, in plain English
  3. Put both VMs on one isolated internal network
  4. Take a clean snapshot of each VM
  5. Prove the room is really sealed
  6. The one rule that matters: only touch what's yours

Open the full interactive lab →