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Redline-CTF · Available now
CompTIA PenTest+ (PT0-003)The offense track, live in your browser
An AWS-hosted, browser-accessible capture-the-flag range built as a capstone for CompTIA PenTest+ (PT0-003) prep. Every student gets a private Kali Linux desktop and a set of vulnerable targets — nothing touches a real system.
Coverage
27 challenges, all 4 PT0-003 domains
Every challenge is mapped to a specific PenTest+ exam objective.
Reconnaissance & Enumeration
5OSINT, DNS and service enumeration against planted, in-lab targets.
Vulnerability Discovery & Analysis
5Scanning, triage, and spotting exploitable misconfigurations and CVEs.
Attacks & Exploits
12Web, network, Active Directory, container and cloud-misconfiguration exploitation.
Post-Exploitation & Lateral Movement
5Privilege escalation, pivoting, and moving between compromised hosts.
The environment
One workstation, real targets, nothing shared
- Private Kali Linux desktop per student, in the browser
- Linux and optional Windows/Active Directory targets
- Containerized and cloud-misconfiguration challenges
- AI-security targets
- A public, live scoreboard for the whole class
- 27
- Challenges
- 4
- PT0-003 domains covered
- 34/34
- Platform health checks passing
- 1:1
- Student-to-lab ratio
Planning a CTF day or competition season?
Founding schools get their first event at a discount.