Jacob - Instant Citrix Security How-to
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A guide to bulletproofing your enterprise environment with the excellent security features in Citrix
Overview
- Learn something new in an Instant! A short, fast, focused guide delivering immediate results.
- Simple and detailed security implementations for your existing or brand new Citrix deployments.
- Solutions to your network environment problems.
- Using case studies you will be guided through solutions to real life problems.
In Detail
With the rise of cloud computing and virtualization comes a whole new threat to business security. When dealing with highly confidential information you need your security to be bulletproof. This book will help you do that.
Instant Citrix Security: How-to will allow you to achieve simplicity in security when dealing with real life examples. This guide will give your systems that extra layer of protection when they need it most. This book could be the difference between secure data and stolen data.
Starting with how to deploy a Citrix Netscaler on DMZ this book presents you with options, their uses, and features that can be enabled. In order to ensure each recipe gives you the most benefit, case studies are included to show you real life implications of your decisions.
This book will guide you through the world of load balancing using both content switching and redirection. We will also discuss load balancing based on geographical location and disaster recovery methods.
The number of features within each module to reduce server load and CPU is astounding and will make your life, the end user, a walk in the park.
What you will learn from this book
- Set up Netscaler in DMZ Zone with features such as slow start and external authentication.
- Learn about authentication, authorisation, and auditing features.
- Learn how to redirect traffic based on the content of traffic hitting the Netscaler as well as advanced features such as modifying the HTTP headers to suit the client needs.
- Reduce the number of idle connections to reduce memory and CPU usage.
- Prevent DOS attacks, at any level, even at TCP/IP.
- Learn about the Application Firewall module.
- Control surge and ebb traffic.
Approach
Filled with practical, step-by-step instructions and clear explanations for the most important and useful tasks. Get the job done and learn as you go. A how-To book with practical recipes accompanied with rich screenshots for easy comprehension.This easy-to-follow, hands-on guide shows you how to bolster your security with real life cases and step-by-step instructions.
Who this book is written for
This guide gets new users up and running with Citrix Netscaler in simple practical steps and also acts as a refresher to those with some experience of the product and its features.
Jacob: author's other books
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Copyright 2013 Packt Publishing
All rights reserved. No part of this book may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, without the prior written permission of the publisher, except in the case of brief quotations embedded in critical articles or reviews.
Every effort has been made in the preparation of this book to ensure the accuracy of the information presented. However, the information contained in this book is sold without warranty, either express or implied. Neither the author, nor Packt Publishing, and its dealers and distributors will be held liable for any damages caused or alleged to be caused directly or indirectly by this book.
Packt Publishing has endeavored to provide trademark information about all of the companies and products mentioned in this book by the appropriate use of capitals. However, Packt Publishing cannot guarantee the accuracy of this information.
First published: February 2013
Production Reference: 1120213
Published by Packt Publishing Ltd.
Livery Place
35 Livery Street
Birmingham B3 2PB, UK.
ISBN 978-1-84968-672-3
www.packtpub.com
Author
Carmel Jacob
Reviewer
Andrew Mallett
Acquisition Editor
Martin Bell
Commissioning Editor
Meeta Rajani
Technical Editors
Prasad Dalvi
Lubna Shaikh
Project Coordinator
Esha Thakker
Proofreader
Lawrence A. Herman
Graphics
Valentina D'silva
Production Coordinator
Melwyn D'sa
Cover Work
Melwyn D'sa
Cover Image
Sheetal Aute
Carmel Jacob is a networking professional with five and a half years of experience and counting. She has worked on a wide range of products at different layers of networking starting with firewall, load balancers, routers, and switches. She is now into network testing and loves what she does. She has a keen interest in reading books, writing, and debugging issues at work!
I would like to express my gratitude towards my family and friends, who have been supportive and encouraging during the preparation of this book and will always be!
Andrew Mallett has worked in IT for more years than he cares to mention, well, since 1986, and is working with Citrix technologies since Metaframe 1.8 in 1999. He not only has Citrix skills and certification, but also teaches Linux, Citrix, Novell, and Microsoft official courses and supports many of these products. He is well versed and certified in Linux. His interest and skills in security and remote access made this book an ideal book for him to review. He has also authored the book Citrix Access Gateway VPX 5.04 Essentials , Packt Publishing , which you may want to look at yourself.
Andrew currently works for QA Ltd. (http://www.qa.com), the largest Citrix authorized learning center in the U.K., as a Certified Citrix Instructor and Principal Technologist. You may well find Andrew teaching across the U.K. at one of their many training centers.
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"My books are like water; those of the great geniuses are wine. (Fortunately) everybody drinks water."
Mark Twain
The aim of this book is to comb through the many features of Citrix Application Delivery Controller, which is NetScaler, and give you insight into how to handle and tune them according to your requirements.
I have tried to whip up as many recipes as possible so that they would be easier for readers to choose from. In addition, there are certain important terms explained, which we usually come across while deploying Citrix NetScalers and Access Gateways, but don't think much about. By the end of this book, we hope to give readers a good practical knowledge of the working of an end-to-end Citrix solution. Though it is recommended you read it from start to finish, it is made flexible so that you can move between recipes and skip to recipes that intrigue you.
This book will also try to simplify any complexities involved and make the read an interesting one.
I would like to sign off with a quote from Bruce Lee (I'm a big fan!).
"Use only that which works, and take it from any place you can find it."
Bruce Lee
Day one deployment in a DMZ network (Must know) discusses the basic set up of NetScaler in DMZ and the server farm in internal zone, while keeping in mind what changes should be done to ensure connectivity between NetScaler and the backend servers.
Triple A (Must know) shows how to configure the AAA vserver and use it with CS/LB vserver. This recipe also shows the readers how to configure SSO functionality and gives the readers a detailed packet flow as well as a capture that shows a successful authentication using LDAP, which can be used to troubleshoot in readers' environments.
Controlling surge/burst (Must know) shows how to enable settings that turn on surge protection, along with the base threshold and throttling options. This recipe also explains how the protection works along with NetScaler's inherent connection multiplexing.
Content switching (Must know) discusses a simple but most commonly used procedure to redirect the HTTP traffic to secure HTTPS by using the responder policy bound to the CS level along with the configuration commands.
Zombie cleanup (Must know) discusses how to clean up idle connections that would take up space and memory at intervals that can be customized. This recipe also shows the levels at which the timeout can be set.
Disaster recovery (Should know) introduces a series of steps for setting up disaster recovery and later shows the ways to troubleshoot it as well. This recipe includes a discussion of dynamic proximity, which shows how the RTT calculation is done. This recipe also discusses the steps that are used to calculate as well as configure dynamic proximity.
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