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cli-gamesRange

The Range: a daily live capture the flag on a vulnerable system

The Range is a live security challenge played entirely from the command line. Investigate an isolated Linux target, find what should not be exposed, and capture the flags before the event closes.

Free to watch. An account is required to compete. Best played with a full keyboard.

between challenges

The next target is being prepared

Watch a completed event while the next isolated target comes online.

Browse the event archive

You are given access, not answers

01

Recon

Map the target. Inspect services, files, users, and the clues left in plain sight.

02

Exploit

Combine Linux fundamentals and security reasoning to reach what was misconfigured.

03

Capture

Every unique flag earns Range XP. The fastest full clear earns a 25% bonus.

attack boxtarget: 10.0.2.20
$ nmap -sV 10.0.2.20
22/tcp    open  ssh
8080/tcp  open  http

$ curl 10.0.2.20:8080
Internal dashboard — authorized personnel only

$ _

Built to be investigated

Every challenge runs on isolated infrastructure created for the event. Use familiar commands, inspect real services, and experiment safely inside the target boundary. No prior CTF experience is required.

Compete or watch the investigation unfold