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 (10 chapters)
9
Index

Load balancing Exchange 2013


Exchange has always been difficult to load balance because of the way it works, but with the release of Exchange 2013, it has become a lot easier to load balance, as the architecture in Exchange 2013 has been dramatically simplified with only two roles, the Client Access server (CAS) and the Mailbox server. The CAS now only serves as a stateless proxy to the Mailbox server. This means that we can load balance on layer 4, as it does not matter which CAS a user is sent to. Also, RPC has been removed as a protocol, and now HTTPS is used by default with Outlook Anywhere, which makes it a lot easier to load balance. When configuring Exchange, we need to set up CAS using an external URL, which is available only via NetScaler.

With Exchange 2013 Service Pack 1, we also have the support do perform SSL offloading, but this is not configured by default and is not directly exposed in the Exchange management console. The advantage with performing SSL offloading is that we...