VirtualSky Labs

Read the brief. Open a terminal.
Capture the flag.

Every room here runs against a real, always-on target — not a simulation. You get a terminal, a live recon panel, and one objective per task.

boot.log

Web Recon Fundamentals

Start here: map a target's attack surface before you ever try to break anything.

Linux Basics

Learn to navigate and interact with Linux — the OS that runs almost every server you will ever hack.

Network Scanning

Discover what is running on a network before you try to exploit anything.

Web Vulnerabilities

Learn the most common web application vulnerabilities and how attackers exploit them.