Book Image

Practical Network Scanning

By : Ajay Singh Chauhan
Book Image

Practical Network Scanning

By: Ajay Singh Chauhan

Overview of this book

Network scanning is the process of assessing a network to identify an active host network; same methods can be used by an attacker or network administrator for security assessment. This procedure plays a vital role in risk assessment programs or while preparing 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 scanning steps, 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 in performing network scanning using different tools and in choosing the best tools for your system.
Table of Contents (19 chapters)
Title Page
Packt Upsell
Contributors
Preface
Index

Summary 


This chapter served as an introduction to understanding the world of PKI. The chapter began with the basic fundamentals of SSL from a user's point of view and discussed how SSL works for web-based applications. We also covered what functions and algorithms are available for us to generate a strong certificate. In addition, we have seen how certificates are generated for Windows IIS and looked at how to use the OpenSSL tool. This chapter also gave you an insight into the threats to PKI and how to safeguard against them for a better user experience.

In the next chapter, we will discuss firewall as a security appliance and explore its place in network infrastructure.