Fast DNS Enumeration & Resolution for Reconnaissance

$55.00 $60.00

Master Dnsx, ProjectDiscovery’s high-performance DNS toolkit designed for massive subdomain resolution and DNS-based reconnaissance. This practical course teaches you how to perform fast, accurate DNS lookups, identify active hosts, and integrate Dnsx seamlessly with tools like Amass, Subfinder, and HTTPX. Ideal for ethical hackers, bug bounty hunters, and penetration testers focused on large-scale infrastructure discovery.

SKU : CYB-DNSX-117 In stock Categories : Tools
  • Introduction to Dnsx: purpose, architecture, and workflow
  • Installing Dnsx (binary, Go, or Docker) and setting up DNS resolvers
  • DNS fundamentals: A, AAAA, CNAME, MX, TXT, PTR, NS, and SOA records
  • Performing massive subdomain resolution with Dnsx
  • Using custom resolvers and managing resolver pools for accuracy and speed
  • Output formats: plain text, JSON, CSV — parsing and chaining results
  • Combining Dnsx with Amass, Subfinder, and HTTPX for complete recon pipelines
  • Filtering and extracting active subdomains
  • Handling DNS timeouts, false positives, and response caching
  • DNS brute-forcing and validation techniques
  • Reverse lookups and wildcard filtering
  • Automating DNS enumeration for continuous monitoring and reporting
  • Safe scanning practices, responsible disclosure, and rate-limiting
  • Hands-on labs: real-world workflows and building DNS automation scripts

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