Book Image

Nmap: Network Exploration and Security Auditing Cookbook - Second Edition

By : Paulino Calderon
Book Image

Nmap: Network Exploration and Security Auditing Cookbook - Second Edition

By: Paulino Calderon

Overview of this book

This is the second edition of ‘Nmap 6: Network Exploration and Security Auditing Cookbook’. A book aimed for anyone who wants to master Nmap and its scripting engine through practical tasks for system administrators and penetration testers. Besides introducing the most powerful features of Nmap and related tools, common security auditing tasks for local and remote networks, web applications, databases, mail servers, Microsoft Windows machines and even ICS SCADA systems are explained step by step with exact commands and argument explanations. The book starts with the basic usage of Nmap and related tools like Ncat, Ncrack, Ndiff and Zenmap. The Nmap Scripting Engine is thoroughly covered through security checks used commonly in real-life scenarios applied for different types of systems. New chapters for Microsoft Windows and ICS SCADA systems were added and every recipe was revised. This edition reflects the latest updates and hottest additions to the Nmap project to date. The book will also introduce you to Lua programming and NSE script development allowing you to extend further the power of Nmap.
Table of Contents (25 chapters)
Title Page
Credits
About the Author
Acknowledgments
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface
13
Brute Force Password Auditing Options
17
References and Additional Reading

Generating a network topology graph with Zenmap


Zenmap's topology tab allows users to obtain a graphical representation of the network. Network diagrams are used for several tasks in IT, and we can save ourselves from having to draw the topology with third-party tools by exporting the topology graph from Nmap. This tab also includes several visualization options to tweak the view of the graph.

This recipe will show you how to generate an image of your network topology with Zenmap.

How to do it...

Scan the network that you wish to map in Zenmap, adding the option --traceroute:

# nmap -sV --traceroute scanme.nmap.org

Go to the tab named Topology. You should see the topology graph now, as shown in the following screenshot:

In this view, you may rearrange the location of the nodes and apply a few different visualization styles. When you are happy with the layout, click on Save Graphic to save the visualization as an image file, PDF, SVG, or postscript file.

How it works...

The Topology tab is an adaptation...