Book Image

Cloud Security Handbook

By : Eyal Estrin
Book Image

Cloud Security Handbook

By: Eyal Estrin

Overview of this book

Securing resources in the cloud is challenging, given that each provider has different mechanisms and processes. Cloud Security Handbook helps you to understand how to embed security best practices in each of the infrastructure building blocks that exist in public clouds. This book will enable information security and cloud engineers to recognize the risks involved in public cloud and find out how to implement security controls as they design, build, and maintain environments in the cloud. You'll begin by learning about the shared responsibility model, cloud service models, and cloud deployment models, before getting to grips with the fundamentals of compute, storage, networking, identity management, encryption, and more. Next, you'll explore common threats and discover how to stay in compliance in cloud environments. As you make progress, you'll implement security in small-scale cloud environments through to production-ready large-scale environments, including hybrid clouds and multi-cloud environments. This book not only focuses on cloud services in general, but it also provides actual examples for using AWS, Azure, and GCP built-in services and capabilities. By the end of this cloud security book, you'll have gained a solid understanding of how to implement security in cloud environments effectively.
Table of Contents (19 chapters)
Section 1: Securing Infrastructure Cloud Services
Section 2: Deep Dive into IAM, Auditing, and Encryption
Section 3: Threats and Compliance Management
Section 4: Advanced Use of Cloud Services

Multi-cloud strategy

Prior to using a multi-cloud architecture, we need to ask ourselves, what are we trying to achieve through a multi-cloud strategy? Some of the most common use cases for choosing a multi-cloud strategy are discussed in the following sections.

Freedom to select a cloud provider

Most cloud providers offer us the same fundamental services (such as compute, storage, and database). Having the freedom to select a cloud provider allows us to decide for each workload where we wish to deploy our resources (VMs, containers, database, and so on), in case one of the cloud providers changes its Service Level Agreement (SLA) or pricing model.

Freedom to select your services

This freedom means that if one of the cloud providers offers a certain service that is not available on other cloud providers, such as data analytics for large datasets, or a Function-as-a-Service offering that supports a certain development language that is not supported by other cloud providers...