Ajay Singh Chauhan - Practical Network Scanning

BIRMINGHAM - MUMBAI

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First published: May 2018

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ISBN 978-1-78883-923-5

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Ajay Singh Chauhan is an experienced network and security architect, and he has been working extensively in the IT industry for 15 years. During his career, he has had varied responsibilities, ranging from looking after an entire IT infrastructure to providing network operations, implementation, and network design solutions.

Ajay works almost exclusively with large-scale cloud data center multivendor technologies. He contributes to the Cisco blogging platform by providing IT professionals with troubleshooting tips and tricks.

Kuldeep Vilas Sonar is a cyber security expert with almost 8 years' comprehensive experience in various vertical fields of cyber security. His domain expertise is mainly in cybercrime investigations, vulnerability assessment, and penetration testing. He holds a master's degree in computer applications and several industry-recognized certifications, including CCNA, CCNA Security, CEH, IoT Security Essentials, and Cyber Security for IoT. He has delivered training and consultation for organizations in India, the U.S., and Singapore.

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Network scanning is the process of building an inventory of IT infrastructure assets by identifying an active host on a network. Similar methods can be used by an attacker or network administrator to assess security. This procedure plays a vital role in risk assessment programs and the preparation of a security plan for your organization.
Practical Network Scanning starts with the concept of network scanning and how organizations can benefit from it. Then, going forward, we delve into the different steps involved in scanning, such as service detection, firewall detection, TCP/IP port detection, and OS detection. We also implement these concepts using a few of the most prominent tools on the market, such as Nessus and Nmap. In the concluding chapters, we prepare a complete vulnerability assessment plan for your organization. By the end of this book, you will have hands-on experience of performing network scanning using different tools and in choosing the best tools of your system.

If you are a network and security professional who is responsible for securing an organization's network infrastructure, then this book is for you.

, Fundamental Security Concepts , explains the necessity for network security and covers a step-by-step approach to keep in mind for securing a network. You will also learn how to identify the need for security and the factors involved in network security.

, Secure Network Design , explains the security threats that exist in modern networks and how to design a secure network by keeping them in mind. It also explains network segmentation, defining a network boundary, and the importance of encryption, things to consider, and the benefits of implementing security on different network layers.

, Server-Level Security , gives us a basic understanding of protecting a server's infrastructure, including aspects such as hardening the server, the use of various authentication methods, password policies, and protection against viruses and malware.