Ultimate Guide: Build a Cybersecurity Home Lab for Free (2025 Step-by-Step)

Cyberattacks happen every 39 seconds — and if you want to learn how to stop them, you need a safe, legal environment to practice.

Why You Need a Home Lab?

A home lab lets you hack, defend, and experiment without breaking laws or risking real systems. Whether you’re preparing for certifications (like CEH or OSCP) or just curious how hackers operate, this guide will show you how to build your own cyber playground for free.

Requirements

ItemPurposeDetails
Computer (Windows or Linux)Your Host Machine16GB+ RAM, 50GB+ free storage
VirtualBoxRun Virtual Machineshttps://www.virtualbox.org/ (free)
Kali Linux ISOHacker’s OShttps://www.kali.org/get-kali/#kali-platforms
Metasploitable2Intentionally Vulnerable Machinehttps://sourceforge.net/projects/metasploitable/

Step 1: Install VirtualBox

Instructions:

  • Download VirtualBox here. Click download and choose your host machine.
  • Once the download completed > Double-click on the installer > Click Next > Accept defaults.
  • Open VirtualBox after installation.
VirtualBox Installation Screen

Step 2: Set up Kali Linux

Instructions:

  1. Download Kali Linux ISO from kali.org.
  2. Choose Installer images.
  3. Download the Installer Version
  4. Once done,

Step 3: Set up Metasploitable2

Instructions:

1- Download here

2. Extract the Metasploitable2 ZIP file

3. In VirtualBox, click New. Name: Metasploitable2

Warning:

Never expose Metasploitable2 to the internet -it’s intentionally vulnerable!

Step 4: Network Configuration

Instructions:

  1. Go to V
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