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Network Scanning Cookbook

You're reading from  Network Scanning Cookbook

Product type Book
Published in Sep 2018
Publisher Packt
ISBN-13 9781789346480
Pages 304 pages
Edition 1st Edition
Languages
Concepts
Author (1):
Sairam Jetty Sairam Jetty
Profile icon Sairam Jetty
LinkedIn
Sairam Jetty has more than 5 years of hands-on experience in many verticals of penetration testing, compliance, digital forensics, and malware research. He is currently working with Paladion Networks, Abu Dhabi, as a senior analyst and team lead. He has assisted and associated with various financial, telecom, and industrial institutions for testing and securing their applications and environments. Sairam has industry-standard certifications, such as OSCP, Digital Forensic Analyst, Digital Forensic Investigator, and Mobile Security Expert. He also specializes in source code review and mobile application security. He has acquired a great knowledge of SCADA/ICS and nuclear security from his corporate experience and self-learning.
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Table of Contents (10) Chapters

Preface 1. Introduction to Network Vulnerability Scanning 2. Understanding Network Scanning Tools 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

How to detect operating system

Nmap uses TCP/IP stack fingerprinting for OS detection.This is done by crafting custom TCP and UDP packets and analyzing their responses. After generating various such probes and comparing the results to the Nmap-os-db database of more than 2,600 known OS fingerprints and provides the OS version. The fingerprint provides details such as the vendor name, OS name, OS generation, device type, and also their Common Platform Enumeration (CPE) representation. Nmap also provides an option for the user to submit the fingerprint obtained if it is not present in the Nmap database of operating signatures:

  • -O (Enable OS detection): This enables OS detection for an Nmap scan. This flag further has options that can be used in conjunction with it.
  • --osscan-limit: This option will reduce the scan time when a list of hosts is being scanned by skipping the hosts...
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Authors (1)

Profile icon Sairam Jetty
LinkedIn
Sairam Jetty has more than 5 years of hands-on experience in many verticals of penetration testing, compliance, digital forensics, and malware research. He is currently working with Paladion Networks, Abu Dhabi, as a senior analyst and team lead. He has assisted and associated with various financial, telecom, and industrial institutions for testing and securing their applications and environments. Sairam has industry-standard certifications, such as OSCP, Digital Forensic Analyst, Digital Forensic Investigator, and Mobile Security Expert. He also specializes in source code review and mobile application security. He has acquired a great knowledge of SCADA/ICS and nuclear security from his corporate experience and self-learning.
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See other products by Sairam Jetty

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