Book Image

Securing Network Infrastructure

By : Sairam Jetty, Sagar Rahalkar
Book Image

Securing Network Infrastructure

By: Sairam Jetty, Sagar Rahalkar

Overview of this book

Digitization drives technology today, which is why it’s so important for organizations to design security mechanisms for their network infrastructures. Analyzing vulnerabilities is one of the best ways to secure your network infrastructure. This Learning Path begins by introducing you to the various concepts of network security assessment, workflows, and architectures. You will learn to employ open source tools to perform both active and passive network scanning and use these results to analyze and design a threat model for network security. With a firm understanding of the basics, you will then explore how to use Nessus and Nmap to scan your network for vulnerabilities and open ports and gain back door entry into a network. As you progress through the chapters, you will gain insights into how to carry out various key scanning tasks, including firewall detection, OS detection, and access management to detect vulnerabilities in your network. By the end of this Learning Path, you will be familiar with the tools you need for network scanning and techniques for vulnerability scanning and network protection. This Learning Path includes content from the following Packt books: •Network Scanning Cookbook by Sairam Jetty •Network Vulnerability Assessment by Sagar Rahalkar
Table of Contents (28 chapters)
Title Page
Copyright and Credits
About Packt
Contributors
Preface
Index

What is enumeration?


We have already seen the importance of information gathering in the previous chapter. Enumeration is the next logical step once we have some basic information about our target. For example, let's assume country A needs to launch an attack on country B. Now, country A does some reconnaissance and gets to know that country B has 25 missiles capable of hitting back. Now, country A needs to find out exactly what type, make, and model the missiles of country B are. This enumeration will help country A develop the attack plan more precisely.

Similarly, in our case, let's assume we have come to know that our target system is running some web application on port 80. Now we need to further enumerate what type of web server it is, what technology is used by the application, and any other relevant details. This will really help us in selecting accurate exploits and in attacking the target.