Book Image

Implementing NetScaler VPX??? - Second Edition

By : Marius Sandbu
Book Image

Implementing NetScaler VPX??? - Second Edition

By: Marius Sandbu

Overview of this book

With a large demand for responsive websites and availability of services, IT administrators are faced with an ever-rising need for services that are optimized for speed. NetScaler VPX is a software-based virtual appliance that provides users with the comprehensive NetScaler feature set. Implementing apps and cloud-based services is much easier with its increased service performance and integrated security features. This book will give you an insight into all the new features that NetScaler VPX™ has to offer. Starting off with the basics, you will learn how to set NetScaler up and configure it in a virtual environment including the new features available in version 11, such as unified gateway and portal theme customization. Next, the book will cover how to deploy NetScalar on Azure and Amazon, and you will also discover how to integrate it with an existing Citrix infrastructure. Next, you will venture into other topics such as load balancing Microsoft and Citrix solutions, configuring different forms of high availability Global Server Load Balancing (GSLB), and network optimization. You will also learn how to troubleshoot and analyze data using NetScaler's extensive array of features. Finally, you will discover how to protect web services using an application firewall and will get to grips with other features such as HTTP, DOS, and AAA.
Table of Contents (15 chapters)
Implementing NetScaler VPX™ Second Edition
About the Author
About the Reviewer

Chapter 3. Load Balancing

Load-balanced services are accessed by users every day, such as when they book a plane ticket on a website, watch the news, or access social media. By using load balancing, we have the ability to distribute user requests or client requests for content and applications across multiple backend servers where the content is located. In this chapter, we will cover the following topics:

  • How load balancing works

  • How to load balance a generic web application

  • How to load balance Citrix services such as the XML service and DDC servers

  • How to load balance Microsoft products such as SharePoint, Exchange, and MSSQL

A load-balanced service within NetScaler allows us to distribute user requests from different sources based upon different parameters and algorithms, such as least bandwidth or least connections. It also provides persistency, which allows us to maintain a session on the same server. These features allow us to redirect clients to a backend server, for example, a server...