In this video, we will learn DNS Spoofing Attacks in detail — from theory to practical demonstration. The goal is to make beginners understand what DNS spoofing is and how it's performed using tools like Bettercap or Ettercap. First, we'll cover the basics: What is DNS (Domain Name System)? DNS is the phonebook of the internet. It translates domain names (like google.com) into IP addresses. What is ARP (Address Resolution Protocol)? ARP connects an IP address to a MAC address in a local network.

Cisco IP Source Guard (IPSG) and configuration **Cisco IP Source Guard (IPSG)** **Purpose:** IP Source Guard is a security feature on Cisco switches designed to prevent IP address spoofing attacks. It restricts IP traffic on untrusted switch ports by filtering traffic based on the DHCP snooping binding database or manually configured IP-to-MAC bindings. **How It Works:** 1. **DHCP Snooping Dependency:** IPSG relies on the DHCP snooping binding table to learn valid IP-MAC-interface bindings. 2. *

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