In the era of application security, subdomain enumeration and directory discovery are the first steps to finding critical vulnerabilities. In this deep-dive tutorial, we go beyond basic scanning to master the "big three" of modern web reconnaissance: ffuf, Gobuster, and Subfinder.
What You Will Learn:
Passive vs. Active Recon: Why starting with passive sources like SecurityTrails and Censys is essential for "quiet" discovery.
Subfinder Mastery: How to leverage up to 26 passive DNS sources to map a target's attack surface instantly.
Aggressive Discovery with Gobuster: Using DIR, DNS, and VHOST modes to find hidden scripts, backups, and admin portals.
Advanced Fuzzing with ffuf: Mastering the fastest web fuzzer to identify hidden virtual hosts and filter out noise using response size parameters (-fs).
The Power of Wordlists: How to use industry-standard collections like SecLists to ensure your scans find what others miss.
Pro Defense Tips: Understanding how to protect against aggressive scans and why rate-limiting matters.
Tools & Resources Mentioned:
Subfinder: Passive subdomain discovery tool.
Gobuster: High-speed directory and DNS brute-forcer.
ffuf: The Fast Web Fuzzer for precision enumeration.
SecLists: The essential Pentesters' Companion for wordlists.
This video is only for educational purpose.