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Network Scanning Cookbook

You're reading from   Network Scanning Cookbook Practical network security using Nmap and Nessus 7

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Product type Paperback
Published in Sep 2018
Publisher Packt
ISBN-13 9781789346480
Length 304 pages
Edition 1st Edition
Tools
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Author (1):
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Sairam Jetty Sairam Jetty
Author Profile Icon Sairam Jetty
Sairam Jetty
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Toc

Table of Contents (10) Chapters Close

Preface 1. Introduction to Network Vulnerability Scanning 2. Understanding Network Scanning Tools FREE CHAPTER 3. Port Scanning 4. Vulnerability Scanning 5. Configuration Audits 6. Report Analysis and Confirmation 7. Understanding the Customization and Optimization of Nessus and Nmap 8. Network Scanning for IoT, SCADA/ICS 9. Other Books You May Enjoy

Understanding Nmap Script Engine and its customization

The Nmap Script Engine is used to run custom scripts written by users to automate network-level actions. Typically, Nmap scripts end with a .nse extension. These scripts are used to perform the following tasks:

  • Host and port discovery: The whole purpose of Nmap being so widely used is to perform simple tasks to check whether the remote host is live or non-live, along with the current status of the ports.
  • Version detection: Nmap has a database of a variety of application and service signatures which are checked against the responses received from the ports to identify the service running on the port and sometimes the specific version as well.
  • Affected vulnerabilities: Nmap Script Engine allows users to determine whether a particular port/service is vulnerable to a specific disclosed vulnerability. It depends on the script...
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