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Nmap 6: Network Exploration and Security Auditing Cookbook

Nmap 6: Network Exploration and Security Auditing Cookbook

4.7 (9)
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Nmap 6: Network Exploration and Security Auditing Cookbook

Nmap 6: Network Exploration and Security Auditing Cookbook

4.7 (9)

Overview of this book

Nmap is a well known security tool used by penetration testers and system administrators. The Nmap Scripting Engine (NSE) has added the possibility to perform additional tasks using the collected host information. Tasks like advanced fingerprinting and service discovery, information gathering, and detection of security vulnerabilities."Nmap 6: Network exploration and security auditing cookbook" will help you master Nmap and its scripting engine. You will learn how to use this tool to do a wide variety of practical tasks for pentesting and network monitoring. Finally, after harvesting the power of NSE, you will also learn how to write your own NSE scripts."Nmap 6: Network exploration and security auditing cookbook" is a book full of practical knowledge for every security consultant, administrator or enthusiast looking to master Nmap. The book overviews the most important port scanning and host discovery techniques supported by Nmap. You will learn how to detect mis-configurations in web, mail and database servers and also how to implement your own monitoring system. The book also covers tasks for reporting, scanning numerous hosts, vulnerability detection and exploitation, and its strongest aspect; information gathering.
Table of Contents (18 chapters)
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Nmap 6: Network Exploration and Security Auditing Cookbook
Credits
About the Author
Acknowledgement
About the Reviewers
www.PacktPub.com
Preface
References
Index

Chapter 3. Gathering Additional Host Information

Note

This chapter shows you how to do some things that in many situations might be illegal, unethical, a violation of the terms of service, or just not a good idea. It is provided here to give you information that may be of use to protect yourself against threats and make your own system more secure. Before following these instructions, be sure you are on the right side of the legal and ethical line... use your powers for good!

In this chapter, we will cover:

  • Geolocating an IP address

  • Getting information from WHOIS records

  • Checking if a host is known for malicious activities

  • Collecting valid e-mail accounts

  • Discovering hostnames pointing to the same IP address

  • Brute forcing DNS records

  • Fingerprinting the operating system of a host

  • Discovering UDP services

  • Listing protocols supported by a remote host

  • Discovering stateful firewalls by using a TCP ACK scan

  • Matching services with known security vulnerabilities

  • Spoofing the origin IP of a port scan

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