Welcome to the Interactive Log Checker, a free educational tool from The Art of D3fense.
System and server logs are like a black box recorder for your digital environment — they record every login attempt, web request, error, and firewall block. Hidden inside these lines of text are the early warning signs of attacks: brute force attempts, exploit probes, or suspicious network activity.
This tool helps you:
- 🔑 Detect repeated failed logins and brute force attempts.
- 🌐 Spot web attack probes like SQL injection and XSS.
- ⚙️ Identify system instability and suspicious restarts.
- 📡 Monitor router/firewall logs for scans and dropped traffic.
How it works
- Upload any plain-text log file (e.g.,
auth.log,access.log,syslog, router exports). - The checker scans for common patterns of suspicious activity.
- Results are displayed instantly in your browser.
⚠️ Important:
No logs are uploaded or stored anywhere — all analysis runs locally in your browser for complete privacy.
Who is this for?
- 🏠 Home users: check your router or system logs for strange activity.
- 🛠️ Developers: sanity-check web server access logs for attack probes.
- 🛡️ Learners: see real-world attack patterns in a safe environment.
The art of d3fense 