Modification of Domain Name System

Learn the details of the Domain Name System (DNS) in a web application, and learn how to modify the DNS.

Introduction to the DNS

The DNS (Domain Name System) provides detailed information about a web server and its interrelated domains. Without the DNS, we’d be required to remember all the IP addresses used by the rapidly growing number of websites on the internet. This makes it a critical component of most websites although it wasn’t primarily introduced with that goal in mind; it was just supposed to translate the underlying IP addresses within the web application for better readability. Basically, it’s just like a phone book, and both pentesters and hackers should be able to use the DNS to gather information about a target website.

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