CEH Certified Ethical Hacker Cert Guide, 5th Edition

Chapter 3

Footprinting, Reconnaissance, Scanning, and Enumeration

This chapter covers the following topics:

• Footprinting: The process of accumulating data about a specific network environment, usually for the purpose of completing the footprinting process, mapping the attack surface, and finding ways to intrude into the environment. Fingerprinting can be categorized as either active or passive. Active fingerprinting is more accurate but also more easily detected. Passive fingerprinting is the act of identifying systems without injecting traffic or packets into the network. EC Council defines footprinting as a part of a larger process known as reconnaissance.

• Reconnaissance: An information-gathering stage of a hacking process that collects data ...