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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

Scanning an IP address range


Very often, penetration testers and system administrators need to scan not a single machine but a range of hosts. Nmap supports IP address ranges in different formats, and it is essential that we know how to deal with them.

This recipe explains how to work with IP address ranges when scanning with Nmap.

How to do it...

Open your terminal and enter the following command:

# nmap -A -O 192.168.1.0-255

Alternatively you can use any of the following notations:

# nmap -A -O 192.168.1/24
# nmap -A -O 192.168.1.1 192.168.1.2 ... 192.168.1.254 192.168.1.255

How it works...

Nmap supports several target formats. The most common type is when we specify the target's IP or host, but it also supports the reading of targets from files, ranges, and we can even generate a list of random targets.

Any arguments that are not valid options are read as targets by Nmap. This means that we can tell Nmap to scan more than one range in a single command, as shown in the following command:

#...

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