Book Image

Mastering NetScaler VPX

By : Marius Sandbu, Andy Paul
Book Image

Mastering NetScaler VPX

By: Marius Sandbu, Andy Paul

Overview of this book

Citrix NetScaler is one of the best Application Delivery Controller products in the world. The Application Delivery Controllers are commonly used for load balancing purposes, to optimize traffic, and to perform extra security settings. This book will give you an insight into all the available features that the Citrix NetScaler appliance has to offer. The book will start with the commonly used NetScaler VPX features, such as load balancing and NetScaler Gateway functionality. Next, we cover features such as Responder, Rewrite, and the AppExpert templates, and how to configure these features. After that, you will learn more about the other available Citrix technologies that can interact with Citrix NetScaler. We also cover troubleshooting, optimizing traffic, caching, performing protection using Application Firewall, and denying HTTP DDoS attacks for web services. Finally, we will demonstrate the different configuration principles real-world Citrix NetScaler deployment scenarios.
Table of Contents (15 chapters)
Mastering NetScaler VPX™
Notice
Credits
About the Authors
About the Reviewer
www.PacktPub.com
Preface
Index

Monitoring network traffic


In some cases, we might need to monitor the network traffic between the endpoints and NetScaler for troubleshooting purposes, or just to ensure that the traffic flow is moving properly.

NetScaler has a number of built-in tools that we can use to gather information and for basic troubleshooting. For example, we have the regular tools such as ping and traceroute to verify network connectivity. We also have commands such as show connectiontable. This allows us to show connections in real-time and also can be used in conjunction with grep to make it easier to see if a particular client has a current connection with the NetScaler, for instance:

show connectiontable | grep –I "192.168.0.50" | grep –I "HTTP"

This will only display connections that are from 192.168.0.50 and are running over the HTTP protocol. We can also use the show command for other features as well such as ICA. We can use it to show if users are connected to an ICA session using the following commands...