The DNS Harvesting module provides you with the instructions and devices to develop your hands on skills in the following topics.

  • DNS Harvesting with Application Software
  • DNS Harvesting Online
  • ICANN Website

Lab time: It will take approximately 1 hour to complete this lab.

Exam Objectives

The following exam objectives are covered in this lab:

  • CS0-001 1.1: Given a scenario, apply environmental reconnaissance techniques using appropriate tools and processes
  • CS0-001 1.2: Given a scenario, analyze the results of a network reconnaissance

Exercise 1 - DNS Harvesting with Application Software

In this exercise, you will learn the following to use tools to gather DNS information about a domain. It translates more readily memorized domain names to the numerical IP addresses needed for the purpose of locating and identifying computer services and devices with the underlying network protocols.

In this exercise you will complete the following tasks:

  • WHOIS lookup tool installation

Exercise 2 - DNS Harvesting Online

The Domain Name System (DNS) protocol is an important part of the web's infrastructure, serving as the Internet's phone book: every time you visit a website, your computer performs a DNS lookup.

After a network has been scanned we might then begin to look for more information from the DNS server to identify network and personal data. Additionally, we might check a DNS server for the predictable-port recursion vulnerability allowing for cache poisoning attacks.

In this exercise you will complete the following tasks:

  • Connect to the lab devices
  • Who.is for www.example.com
  • Whois.domaintools.com for www.google.com

Exercise 3 - ICANN Website

The Internet Corporation for Assigned Names and Numbers (ICANN) is a non-profit organization that is responsible for coordinating the maintenance and procedures of several databases related to the namespaces of the Internet, ensuring the network's stable and secure operation.

In this exercise you will complete the following tasks:

  • ICANN Website

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