Welcome to Part 1 of our Complete DNS for Ethical Hacking series! In this foundational video you’ll learn the complete DNS resolution process — end to end — and why it matters for Ethical Hackers, Penetration Testers, Red Teamers, System Administrators (Linux & Windows), Security Auditors, and other cybersecurity professionals. DNS is the invisible backbone of the Internet — every website visit, network request, and command-and-control connection starts here. For attackers it’s a versatile attack vector; for defenders it’s often a blind spot. This video gives you the foundational knowledge to both exploit and secure DNS in real-world engagements. You’ll see the full DNS flow in action, explore real tools, and understand the attack surfaces and defenses that matter most. If you want to exploit DNS or defend against DNS-based attacks, this is where it all begins. What you’ll learn 🧭 The Complete DNS Resolution Map: Uncover the full end-to-end DNS lookup path from client to authoritative name servers. 💻 Client-Side Secrets: How the browser, OS, and local caches process DNS requests — and why that matters for reconnaissance and spoofing. 🏗️ Mastering the Hierarchy: The DNS chain of trust (Root → TLD → Authoritative) and how misconfigurations and zone transfers expose risk. 🧩 Cache Breakdown: Deep dive into client, resolver, and server caching, and how caches create opportunities for DNS cache poisoning and spoofing. ⚠️ Identifying the Weakest Link: Where attackers strike first in the protocol and how defenders can detect and mitigate those attack paths. 📉 Real-World Case Studies: Post-mortems of major DNS outages and failures (operational and security impacts) to extract practical lessons. AWS DNS Outage Who this is for Ethical Hackers • Pen Testers • Red Teamers • SOC Analysts • Network Engineers • Linux & Windows Admins • Cybersecurity Students Hands-on in this video ✓ Interactive simulation: step-by-step DNS resolution ✓ Live demo: dig +trace to follow real queries ✓ Component breakdown: root → TLD → authoritative ✓ Security focus: DNS cache poisoning, tunneling, zone transfer risks, and more 0:00 Intro 2:05 The DNS Resolution Process Simulation 13:50 The DNS Resolution Process Re-Cap 17:00 dig +trace with explanation 19:09 dig +trace options explained 21:20 Final Recap of the DNS Resolution Process 24:00 Next steps and future video descriptions Tools used dig (DNS lookup) Bash scripts for simulation and automation DNS trace analysis techniques (Commands shown in video — copy/paste ready) Next videos in the series Part 2 — DNS Records: Reconnaissance & Hidden Data Learn how to weaponize A, CNAME, MX, and TXT records for host discovery and finding hidden subdomains. See exactly which records attackers target for initial access. Part 3 — Exploiting DNS: Full Cache Poisoning Demo & Defense Dive into real-world attacks: live demos of DNS cache poisoning, zone transfer exploits, and DNS tunneling (covert comms), plus essential mitigation steps to secure your network. If this helped you, please Like, Subscribe, and hit the 🔔 to catch Part 2 and Part 3. Questions or demo requests, drop them in the comments! Please Like and Subscribe by clicking here: Follow me on Twitter: -- Disclaimer: Hacking without permission is illegal. This channel is strictly for educational purposes only. We cover cybersecurity in the areas of ethical hacking and penetration testing to help make others aware and be better prepared to defend against cyber threats. #dns #EthicalHacking #Cybersecurity #DNSResolution #NetworkSecurity #nielsennetworking