Скачать или смотреть Day 6: DNS Footprinting and Network Scanning

📘 Day 6: DNS Footprinting and Network Scanning

Welcome to our Certified Ethical Hacker (CEH) Live Recorded Course Series – an unfiltered, real-time learning experience in cybersecurity and ethical hacking.
Unlike polished studio tutorials, these sessions are recorded live, capturing genuine interactions, practical demonstrations, and real-world problem-solving as they happen.In Day 6 of Cybersecurity Training, we explore DNS Footprinting and Network Scanning — two essential reconnaissance techniques used in ethical hacking and penetration testing.

This session covers both passive footprinting (OSINT-based DNS analysis) and active footprinting (network & port scanning). You will learn how attackers gather intelligence about mail servers, DNS records, IP addresses, and open ports before launching an attack.

We also dive deep into:
DNS working mechanism
Email security protocols (SPF, DKIM, DMARC)
Email header analysis & IP tracing
DNS records (A, MX, NS, CNAME)
Hosts file manipulation
Network scanning fundamentals
Port scanning concepts
HTTPS, TLS & security implications

This lecture is highly recommended for:
CEH Aspirants
Cybersecurity Beginners
Network Security Students
Ethical Hacking Learners

Timestamps:
00:00 – Introduction & Kali Linux Troubleshooting
02:42 – Passive Footprinting & OSINT Overview
03:19 – MXToolbox & DNS Records Explained
05:25 – Checking Blacklisted IP Addresses
08:18 – SPF, DKIM & DMARC Explained
14:06 – Email Footprinting & Header Analysis
16:24 – IP Tracing Using ViewDNS
26:51 – Tracing IP Behind VPN (Legal Perspective)
31:53 – What is DNS? Complete Working Explained
39:41 – Hosts File Demonstration (Local DNS Override)
47:21 – DNS Resolution Process Step-by-Step
1:00:46 – DNS Record Types (A, MX, NS, CNAME)
1:10:09 – DNS Footprinting using nslookup
1:16:23 – Tracking IP via Link Demonstration
1:22:20 – Dark Web & Password Leak Example
1:34:38 – Introduction to Network Scanning
1:37:56 – Port Numbers & Open Ports
1:42:30 – HTTP vs HTTPS & TLS Security
1:47:30 – Ping Command Question (Homework)
1:52:02 – Session Closing


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