David Shaw - Nmap Essentials

Rajdeep Bhattacharya is a Principal Server Engineer at Nimbuzz Technologies, located in Gurgaon, India. He has been working on the security and scalability of different products for Nimbuzz. Currently, he is working on the behavior-driven development approach and the performance optimization of various caching layers. In his spare time, he enjoys listening to music, travelling, cooking, and playing table tennis.

Nikhil Kumar is an Information Security Analyst at Biz2Credit Inc. He is a Certified Ethical Hacker, and has a bachelor's and master's degree in computer science. He has written many articles on web application security, security coding practices, web application firewalls, and so on.

He has discovered multiple vulnerabilities in big hotshot applications, including Apple, Microsoft, and so on.

He is currently pursuing the OSCP certification.

Nikhil can be contacted on LinkedIn at https://in.linkedin.com/in/nikhil73.

I would like to thank my family for their support. I would also like to thank my friends, mentor Jatin Jain, and Swati Bhardwaj who helped me in every situation. Next, I would like to thank everybody at Packt Publishing for giving me this opportunity.

Aravinda Babu T is a senior staff member at Fornetix. In this role, he focuses on architecture and the development of encryption key orchestration technologies. He previously worked as an advisory software engineer in IBM Software Labs for the power servers division, and as an open source contributor in ONF for the wireless and mobility group. He has 14 years of experience in network security, datacom, and mobile technologies. He has also worked at Nokia, Motorola, and IBM previously. His experience includes mobile middleware, wireless LAN switches, UTM appliances, and HPC servers.

Ravi Chandra Vinjanampati has been working in the infosec domain for the past 7 years. He holds a GCIH certification, has worked with global finance giants in the past, and is currently working with an engineering company.

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Preface

This book is designed to teach readers how to run Nmap, one of the most powerful network security tools ever created. I'm excited to walk you through learning this tool, as well as the various different elements that come with itfor example, the Nmap Scripting Engine and other tools like Ncat and Ncrack. Throughout this book, we'll be walking through techniques, tips, and tricks to help you learn the essentials of Nmap in a fast and efficient manner!

What this book covers

, Introduction to Nmap , reviews the history of Nmap, what the tool does, when it will be used, how the product evolved, and how to install Nmap on Windows, Linux, and OS X.

, Network Fundamentals , is about how networks work and why a port scanner is important. It overviews TCP, UDP, port scanning, common ports, and service banners.

, Nmap Basics , covers how to run basic or normal Nmap scans without complex flags.

, Advanced Nmap Scans , is about the advanced flags in Nmap that can designate different types of scans.

, Performance Optimization , is about how to optimize timing, parallelism, and so on, in Nmap in order to complete scans efficiently.

, Introduction to the Nmap Scripting Engine , is about the Nmap scripting enginewhat it is, how it works, what programming language it uses, and popular Nmap scripts to use.