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Mastering Netscaler VPX

You're reading from Mastering Netscaler VPX Learn how to deploy and configure all the available Citrix NetScaler features with the best practices and techniques you need to know

Product type Paperback

Published in Nov 2015

Publisher Packt

ISBN-13 9781785281730

Length 218 pages

Edition 1st Edition

Tools

Citrix NetScaler

Concepts

Networking

Authors (3):

Rick Roetenberg

Andy Paul

Marius Sandbu

View More author details

Table of Contents (9) Chapters

Preface

1. Configuring the Standard Features of NetScaler®

2. Using the Features of NetScaler® AppExpert FREE CHAPTER

3. Integration with Citrix® Components

4. Traffic Management

5. Tuning and Monitoring NetScaler® Performances

6. Security Features and Troubleshooting

7. Real-World Deployment Scenarios

Index

Global Server Load Balancing

Global Server Load Balancing (GSLB) allows us to load-balance services across different geographical regions. For instance, large organizations such as Facebook, eBay, and Microsoft use this technology to load-balance their web services. This might be for proximity reasons, because a user might be redirected to the closest available resource, or to keep redundant services available in case of datacenter failures.

So the main purposes for GSLB are:

Performance; user proximity to the closest available resource
Disaster recovery, where multiple sites can be grouped as primary and standby
Load balancing resources between different multiple locations

GSLB is based upon the use of DNS. So for instance when a user wants to go to www.citrix.com, that user's DNS client will do a number of queries against the different DNS servers, until it gets a response from an authoritative source for that domain. An example might be where NetScaler, which is the authoritative nameserver...

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Authors (3)

Marius Sandbu

Marius Sandbu

Marius Sandbu is a Cloud Evangelist and architect working at Sopra Steria in Norway with over 17 years in the IT industry. Marius has a wide range of technical experience across different technologies such as identity, networking, virtualization, endpoint management, infrastructure, and with a special focus on the public cloud. He is an avid blogger, co-hosts the CloudFirst Podcast, and is also an international speaker at events such as Microsoft Ignite and Citrix Synergy. He has previously worked at TietoEVRY where he was the technical lead for the Public Cloud unit and has also worked at the University of Oslo as a system administrator and at Microsoft as a Technical Advisor.

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Paul

Paul

Andy Paul is an accomplished virtualization architect, instructor, and speaker. He has designed and delivered virtualization projects for Fortune 500 companies, public and private health care organizations, and higher education institutions. He has also served as a lead technical trainer, adjunct professor, and guest speaker for multiple organizations. He is a leading industry consultant. He currently manages multiple delivery teams, oversees project architecture, assists large enterprise customers across various industries, and is a global VDI subject matter expert. Visit his blog at www.paultechnologies.com/blog.

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Rick Roetenberg

Rick Roetenberg

Rick Roetenberg is a technical consultant at ITON ICT in the Netherlands. He has more than 5 years of experience in implementing products available from Citrix, especially networking products. He is also responsible for pre-sales with customers at ITON ICT. Recently, he succeeded the Citrix Networking for Datacenter Specialist Practicum. Rick has also presented at DuCUG, the Dutch Citrix User Community, where he explained that NetScaler is more than just an ICA proxy. He has always had a lot of interest in technology, and his current focus is on Citrix network products. Rick posts blogs at www.rickroetenberg.com, where he shares more information about Citrix's products and all that is necessary in addition to these products. He can be contacted at rick@rickroetenberg.com. His Twitter handle is @rroetenberg.

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