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

Deciding upon the type of vulnerability assessment


After understanding the requirements of the customer, the tester needs to create his own test model based on the expectations of the vulnerability management program, the environment, past experience, and the exposure that every type provides. 

The following are the basic types of vulnerability assessment that the tester needs to understand.

Types of vulnerability assessment

The following diagram provides an overview of the different types of vulnerability assessments:

Types of vulnerability assessment based on the location

Based on the location the test is conducted from, the vulnerability assessment could be divided into two main types:

  • External vulnerability assessment
  • Internal vulnerability assessment
External vulnerability assessment

External vulnerability assessmentis the best fit for assets exposed over public networks hosting public services. It is done from outside the target network and thus helps simulate the actual scenario of a real...