Host System
- Windows 11 Pro
- Oracle VirtualBox
- Hardware virtualization enabled (VT-x / Nested Paging)
Multi-OS Virtualization Lab (Oracle VirtualBox)
Built a multi-VM lab on Windows 11 Pro for IT administration practice, system testing, and cybersecurity experimentation inside isolated environments.
Overview
Purpose
- System administration practice
- Virtual networking experiments
- Security labs and simulations
- Safe testing without impacting host OS
Networking Model
Uses NAT/Bridged/Internal Network modes depending on the VM. This supports both internet access and isolated lab communication.
VM Inventory
A clean list of your lab machines and what each one is used for.
Ubuntu (Admin VM)
Name: Alex_ubuntu
Linux administration, CLI practice, services.
- RAM: ~4 GB
- Network: Bridged
Ubuntu (Server VM)
Name: dbhost1
Server/backend host simulation.
- RAM: 2 GB
- Network: NAT + Internal
Red Hat (Enterprise Linux)
Name: rhhost1
Enterprise Linux fundamentals and server concepts.
- RAM: 4 GB
- CPU: 2 vCPUs
- Network: NAT + Internal
Kali Linux
Name: kali-linux-2024.3
Cybersecurity tools and safe lab testing.
- RAM: 2 GB
- Network: Bridged
Windows 10 Client VM
Name: Bonnexandre
Windows client testing / workstation simulation.
Windows 10 Client VM
Name: Alexis
User workstation simulation.
Screenshots
Proof of the environment and the running systems.
Use Cases
IT Practice
- Linux user + permissions practice
- Service management + logs
- Networking troubleshooting
Security Practice
- Safe testing in isolated environments
- Security tool familiarity (Kali)
- Blue-team and hardening exercises
Admin / Lab Expansion
- Add Active Directory lab later (Windows Server)
- Segment networks for better isolation
- Snapshots before changes