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 (18 chapters)
13
Brute Force Password Auditing Options
17
References and Additional Reading

Introduction


In the information security industry, Nmap is the de facto tool for network exploration, leaving all other scanners far behind with its cutting-edge features, such as IPv6 scanning and advanced optimization options. It supports several different ping and port scanning techniques for host and service discovery correspondingly.

Hosts protected by packet filtering systems, such as firewalls or intrusion prevention systems, may return incorrect results when scanned because of the rules used to block certain types of network packets. In these situations, Nmap really shines as users can easily try different scanning techniques (or a combination of them) to bypass these network restrictions. In addition, it supports some options useful to make our scan traffic less suspicious. Learning about these different scanning techniques and how to combine them is necessary if we want to perform very comprehensive scans.

System administrators will gain an understanding of the inner workings of...