Book Image

Cloud Security Automation

By : Prashant Priyam
Book Image

Cloud Security Automation

By: Prashant Priyam

Overview of this book

Security issues are still a major concern for all IT organizations. For many enterprises, the move to cloud computing has raised concerns for security, but when applications are architected with focus on security, cloud platforms can be made just as secure as on-premises platforms. Cloud instances can be kept secure by employing security automation that helps make your data meet your organization's security policy. This book starts with the basics of why cloud security is important and how automation can be the most effective way of controlling cloud security. You will then delve deeper into the AWS cloud environment and its security services by dealing with security functions such as Identity and Access Management and will also learn how these services can be automated. Moving forward, you will come across aspects such as cloud storage and data security, automating cloud deployments, and so on. Then, you'll work with OpenStack security modules and learn how private cloud security functions can be automated for better time- and cost-effectiveness. Toward the end of the book, you will gain an understanding of the security compliance requirements for your Cloud. By the end of this book, you will have hands-on experience of automating your cloud security and governance.
Table of Contents (15 chapters)
Title Page
Packt Upsell

Chapter 4. Cloud Network Security

Let's first understand what network security is. Network security is an activity intended to secure the integrity and usability of one's network and data. It includes a set of policies to prevent and monitor unauthorized access of network resources.

Network security covers a different set of public (internet) and private (local) network, which is used for the transfer of data between business organizations, government agencies, security organizations, and so on.

We could say that it's a set of policies that secure all the data transmission that happens over the network and network resources as well. When we use the network resource, it means all the nodes are connected together through the communication channel to transfer data and information. 

Now, the question is, how does it work? Network security defines multiple layers of security in a network perimeter, or in the network. Each layer consists of the list of policies and controls so that only legitimate...