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

The Showtechsupport utility


The show techsupport utility runs a perl script to collect a number of log files and command outputs. The utility's primary purpose is for Citrix Techsupport Engineers to collect all necessary logs and debug info via a single command. But it is also useful to you as an Administrator as it provides you a means to export all the useful logs to your local machine, which might have your preferred tools, such as Textpad, to examine them.

Running the utility

The easiest means is to use the GUI. It is available under System | Diagnostics | Generate Support File. You can also run the command showtechsupport from CLI or shell and then export the file that gets created in the folder /var/tmp/support/.

What does it contain?

The file itself is named with the convention—collector_<primary or secondary (denoted as P/S)>_NSIP_Date_Time. Here's a summary of the useful info it contains.

The shell directory

This is a collection of files each with the output of CLI or shell commands...