Book Image

Troubleshooting NetScaler

By : Raghu Varma Tirumalaraju
Book Image

Troubleshooting NetScaler

By: Raghu Varma Tirumalaraju

Overview of this book

NetScaler is a high performance Application Delivery Controller (ADC). Making the most of it requires knowledge that straddles the application and networking worlds. As an ADC owner you will also likely be the first person to be solicited when your business applications fail. You will need to be quick in identifying if the problem is with the application, the server, the network, or NetScaler itself. This book provides you with the vital troubleshooting knowledge needed to act fast when issues happen. It gives you a thorough understanding of the NetScaler layout, how it integrates with the network, and what issues to expect when working with the traffic management, authentication, NetScaler Gateway and application firewall features. We will also look at what information to seek out in the logs, how to use tracing, and explore utilities that exist on NetScaler to help you find the root cause of your issues.
Table of Contents (17 chapters)
Troubleshooting NetScaler
Credits
Notice
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Chapter 7. NetScaler Gateway™

NetScaler Gateway (formerly known as Access Gateway Enterprise Edition) is the remote access feature of NetScaler. It has all the usual bells and whistles of an enterprise class hardened VPN solution, and is also the secure frontend of choice for XenApp, XenDesktop, and XenMobile.

As a frontend for XenApp and XenDesktop solutions, NetScaler Gateway understands how to work with ICA (Independent Computing Architecture) and can provide policy-based control for published applications and desktops.

Note

ICA is a Citrix proprietary protocol which is optimized for published applications and desktop delivery.

As a frontend for XenMobile, NetScaler provides a MicroVPN capability that is critical for enabling Worx applications to communicate securely with the backend services.

We will cover the necessary background and troubleshooting for these features in the following order:

  • Basic and Smart Access modes

  • NetScaler Gateway VPNs

  • NetScaler integration with XenApp and XenDesktop...