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

How to choose a Nessus scan template and policy


Nessus allows a user to customize their scan to the lowest degree, even allowing them to filter the plugins which are to be used, and disable the plugins, which will not be used. Every scan is unique in its own way. For example, if a user wants to perform a credentialed scan, he/she cannot use the host discovery scan template to create a new policy. In order to perform a credentialed scan, the user has to select a basic network scan or an advanced scan which has a feature for the user to enter credentials to authenticate with the machine to be scanned. Thus, it is really important to choose an apt scan template before you create a policy and to choose an apt policy once you create different policies. The second option is to select a previously created template or to import an existing template, which can be used to perform a scan.

The user can also create a policy on the go, just by clicking New Scan and selecting an existing template. The only...