DNS(Domain Name System) Spoofing

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What is DNS?

How does DNS work?

DNS Server & IP Address

IPconfig - Windows(Displays all current TCP/IP network configuration values and refreshes Dynamic Host Configuration Protocol (DHCP) and Domain Name System (DNS) settings. Used without parameters, ipconfig displays Internet Protocol version 4 (IPv4) and IPv6 addresses, subnet mask, and default gateway for all adapters.)
IPconfig/all - Windows (Displays the full TCP/IP configuration for all adapters. Adapters can represent physical interfaces, such as installed network adapters, or logical interfaces, such as dial-up connections.)
/sbin/Ifconfig/- Linux & MacOS
Example of IP Configuration

DNS recursive resolver

Root nameserver

TLD nameserver

Authoritative nameserver

DNS Spoofing Means What?

DNS Cache Poisoning

DNS Cache Poisoning Process

DNS ID spoofing

Risks of DNS Poisoning and Spoofing

How to Prevent DNS Cache Poisoning and Spoofing

Software Engineer at Virtusa (Pvt) Ltd.