Book Image

Zscaler Cloud Security Essentials

By : Ravi Devarasetty
Book Image

Zscaler Cloud Security Essentials

By: Ravi Devarasetty

Overview of this book

Many organizations are moving away from on-premises solutions to simplify administration and reduce expensive hardware upgrades. This book uses real-world examples of deployments to help you explore Zscaler, an information security platform that offers cloud-based security for both web traffic and private enterprise applications. You'll start by understanding how Zscaler was born in the cloud, how it evolved into a mature product, and how it continues to do so with the addition of sophisticated features that are necessary to stay ahead in today's corporate environment. The book then covers Zscaler Internet Access and Zscaler Private Access architectures in detail, before moving on to show you how to map future security requirements to ZIA features and transition your business applications to ZPA. As you make progress, you'll get to grips with all the essential features needed to architect a customized security solution and support it. Finally, you'll find out how to troubleshoot the newly implemented ZIA and ZPA solutions and make them work efficiently for your enterprise. By the end of this Zscaler book, you'll have developed the skills to design, deploy, implement, and support a customized Zscaler security solution.
Table of Contents (15 chapters)
1
Section 1: Zscaler for Modern Enterprise Internet Security
8
Section 2: Zero-Trust Network Access (ZTNA) for the Modern Enterprise

Summary

In summary, we saw that the three major components of the Zscaler cloud—namely, CA, PSE, and Nanolog—are architected in a decoupled manner. This means that each component can be scaled up or down based on its dynamic needs, and the other components will not miss a beat. Each component is also designed to be highly available at every level (component level, data center level, and so on).

It is very important to understand the planes in which each of these components operate and what their individual role is in the entire end-to-end transaction that occurs between the end user and the destination website or web application. This understanding is critical to avoid frequent confusion, moving forward.

We also saw how SSL inspection works and why it is important as more and more web traffic (and bad actors!) continue to use encryption. The use cases for VSEs and sandbox and its various configuration options to suit enterprise needs were also covered. In the next...