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

Policy versus procedure versus standard versus guideline


From a governance perspective, it is important to understand the difference between a policy, procedure, standard, and guideline. Note the following diagram:

  • Policy: A policy is always the apex among the other documents. A policy is a high-level statement that reflects the intent and direction from the top management. Once published, it is mandatory for everyone within the organization to abide by the policy. Examples of a policy are internet usage policy, email policy, and so on.
  • Standard: A standard is nothing but an acceptable level of quality. A standard can be used as a reference document for implementing a policy. An example of a standard is ISO27001.
  • Procedure: A procedure is a series of detailed steps to be followed for accomplishing a particular task. It is often implemented or referred to in the form of a standard operating procedure (SOP). An example of a procedure is a user access control procedure.
  • Guideline: A guideline contains...