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

Exploring the best practices for enterprise deployments

The best practices for an enterprise ZPA deployment can be divided per component. Let's start with the connectors.

App Connectors

When configuring your App Connectors as part of an enterprise deployment, you should install the App Connectors on an internal network segment, adjacent to the private applications. It is recommended that the network segment be configured with a default route to the internet.

The connector should also have access to an internal DNS server that can resolve both the application hosts and the hosts on the internet. Full application port and protocol access, including internet control message protocol (ICMP) access, should be granted to the connectors. If possible, avoid an explicit proxy on the path between the connector and the ZPA cloud. ICMP access is required for User Data Protocol (UDP) applications, which allows the round-trip time (RTT) calculations to the application host. This is...