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Mastering XenApp??

Chapter 1. Understanding the XenDesktop^® and XenApp^® Architecture

Citrix XenApp and XenDesktop is a unified solution for application and desktop virtualization that delivers the Windows-based application and desktop to any user, working from anywhere and any device. This unified technology is for any type of users, for example, task workers, knowledge workers, and mobile workers. This unified technology can deliver the application and desktop securely to individual while providing high-definition end user experience.

In this chapter, you will learn:

The strength and uniqueness of XenApp and XenDesktop 7.6
To identify the edition of XenApp and XenDesktop 7.6
To explain the architecture of FlexCast
To identify the use cases of XenApp and XenDesktop 7.6
To identify the component required for implementation
The high-level concepts of planning the deployment

Core strength of XenApp^® and XenDesktop^® 7.6

The latest version of XenApp and XenDesktop 7.6 works on the FlexCast management architecture, which gives you the flexibility to deliver the virtualized solution of Windows application and desktop in a cost-effective way, enabling the organization for BYOD (Bring Your Own Device). With this version, organization can deliver highly available windows applications and desktop solutions, which are highly secure and can be accessed from anywhere. This version of XenApp and XenDesktop has the capability to meet the needs of today's modern workforce.

Going mobile

Nowadays, use of tablet is increasing really fast, and tablet users expect to have the ability to be productive on their tablets when they are travelling or away from office. XenApp and XenDesktop 7.6 can deliver this seamlessly and in a secure way.

With the release of HTML5 support, users can use their applications on devices such as Chromebook and at the same time, Citrix Receiver is available for leading mobile OS such as Android and iOS, enabling them to work on the go.

HDX™ user experience

HDX technologies enable the high-definition experience for users on any device, over any network using almost 90 percent less bandwidth than other competing solutions. HDX experience gives strong completion to the local PC experience, even when working on the multimedia apps, removable devices and 3D graphics. With the help of HDX, administrators can have high graphics-intensive applications such as Autodesk Maya, Adobe Photoshop, and others on server using the server-level graphics card such as NVIDIA GRID K1 and GRID K2.

Cloud-ready

XenApp and XenDesktop 7.6, based on Citrix third generation FlexCast management architecture, is the only hybrid cloud-ready solution platform. With the help of this, we can publish the apps and share desktops on cloud solutions such as Apache CloudStack-based Citrix CloudPlatform or Amazon Web Services (AWS). With this, it makes life easier for the administrator to easily handle the XenApp environment expansion plan.

Any Windows, web, or SaaS application

With this version, you can provide your workforce with any type of application they need, including Windows, web, and SaaS application. It delivers on demand application or desktop delivery solution that enables Windows application and desktop to be virtualized, centralized and managed in the datacenter and be instantly delivered as a service to users anywhere on any device. For web and SaaS application, the receiver seamlessly integrates them to a single interface, so end users only need to log on once for secure access to all their applications.

Open, scalable, and proven

Based on number of use cases, industry validated that scalability of XenApp and other 10,000 Citrix-ready products, this version powerful unified application and desktop computing infrastructure that is easier than ever to manage. The open architecture works with your existing hypervisor, storage, operating system, application, directory, and system management infrastructure with complete integration and automation through comprehensive SDK.

Different editions of XenApp^® and XenDesktop^®

Let's go through the types of edition, which are available with the latest version of Citrix XenApp and XenDesktop.

XenApp 7.6 Edition	XenDesktop Edition
Citrix XenApp 7.6, Platinum Edition: Comprehensive enterprise-class, cloud-ready app virtualization solution with HDX technology, advanced management, monitoring, and security.	Citrix XenDesktop 7.6, Platinum Edition: Comprehensive enterprise-class, cloud-ready desktop virtualization solution with HDX technology, FlexCast delivery technology, advanced management, monitoring, and security.
Citrix XenApp 7.6, Enterprise Edition: Enterprise-class app virtualization solution with HDX technology that delivers a range of virtual app and remote access models for any device.	Citrix XenDesktop 7.6, Enterprise Edition: Enterprise-class desktop virtualization solution with HDX technology and FlexCast delivery technology that delivers a range of virtual app and desktop delivery models for any use case.
Citrix XenApp 7.6, Advanced Edition: High-performance app virtualization solution with Citrix HDX technology.	Citrix XenDesktop 7.6, VDI Edition: High-performance VDI solution for delivering virtual desktops with Citrix HDX technology.

In addition, Citrix also offers the evaluation license—a simple, free download for up to 99 users for 90 days to enable organizations to test the concepts and get started easily.

Use cases

With the unified architecture, we can now deliver server-based computing with the help of XenApp and virtual desktop integration with XenDesktop.

Now we can deliver the application and desktop on the preceding use cases, and with this, IT can provide each type of user with the virtual computing environment suited to their need while optimizing the security, performance, personalization, and cost.

In the modern world, we have different kinds of users.

Task worker

Task workers perform a set of well-defined tasks. They access a set of applications and have limited requirements of their PCs. However, since these workers are interacting with your clients, partners, and employees, they have their critical data. FlexCast architecture enables IT to provide shared desktop and application hosted on the server or desktop to task workers while keeping their data secure.

Knowledge workers

While traditional office workers perform their duties in office only, today's knowledge workers don't just work in the office; all day, they attend meetings and visit different branch offices, and they also work from home. These workers expect access to all of their corporate applications and data wherever they are. FlexCast enables these users to work seamlessly, moving among their various physical environments.

Mobile worker

Mobile workers need access to their virtual desktop from anywhere, regardless of their ability to connect to a network. In addition, these workers expect the ability to personalize their PCs by installing their own application and storing their own data. FlexCast allows the users to retain control over their personal computing environment while allowing IT to control the corporate computing environment.

Shared workstation

Maintaining even the most state of the art university and business computer lab, conference room, or training centers has its own challenges. The primary challenge is the constant requirement of re-provision of desktops with the latest operating systems and applications as the needs of your organization change. FlexCast provides the tools for the provision of a new environment from a single, easily-managed image.

Tip

For detailed feature and use cases, you may visit https://www.citrix.com/go/products/xendesktop/feature-matrix.html XenDesktop 7.6 and XenApp 7.6 Features and Entitlements.

Standard deployment Citrix^® Component

In the standard XenApp and XenDesktop infrastructure, Citrix components are positioned as shown in the following image:

Citrix^® components

The following are the components of Citrix:

Citrix Receiver
Citrix Director
StoreFront
Citrix Delivery Controller
Citrix Studio

Citrix Receiver™

Citrix Receiver is an easy-to-install client software that provides access to your XenDesktop and XenApp installations. This is a mandatory client which has to be installed on the user's device to establish the connection with the XenApp environment. Citrix also releases support for the user device on which users don't have permission to install the Citrix Receiver; in those cases, user can access the resources from the HTML5-supported browser.

Citrix^® Director

Citrix Director provides a detailed and intuitive overview of XenDesktop environments. It enables support and helpdesk teams to quickly and seamlessly perform crucial support tasks for their end users while, at the same time, monitoring and troubleshooting system issues before they become system-critical.

StoreFront™

StoreFront provides a unified interface for XenApp, XenDesktop, and VDI-in-a-Box to deliver the resource, either via web or receiver to the users. It also allows users to connect from anywhere and any device.

Most of you are already aware that Citrix announced the end of life for the Citrix web interface on August 24, 2016, but you can still use the web interface. If you have the software maintenance or subscription advantage programs, then the EOL date is June 30, 2018. The reason behind the end of life was that the web interface was written in J# code, and Microsoft had announced the end of life of this technology. As a result, Citrix developed StoreFront from scratch to provide the next generation features.

Just like web interface, StoreFront also authenticates users and enumerates desktops and applications into the stores that users can access through the receiver, but it goes beyond web interface to simplify the management of XenApp and XenDesktop deployments. StoreFront has the ability to enumerate the resource and authenticate multiple XenApp Farms or XenDesktop sites, which improves the performance.

It also has some other attractive features:

StoreFront has the ability of intelligent resource filtering technology, which enables IT administrators to deliver different sets of applications and desktops to the users while they are getting enumerated from different sites or farms. This feature is handy during the upgrade or migration as it helps in easy transition from the older version to the newer.
It also has the ability to allow users to access the apps and desktops from any device. Also, the devices on which the receiver cannot be installed, application and desktops can be accessed via an HTML5-compatible browser. It also supports single sign in where users have to login once; post this, it gives instant access to critical apps and desktop and this improves productivity.
It supports simplified account provisioning via which users can log on to their assigned resources by just entering their e-mail address or server address or by using the StoreFront provisioning file for the receiver.
StoreFront also supports the most advanced authentication and protection for the XenApp and XenDesktop resources.

Delivery Controller

Installed on servers in the data center, the controller authenticates users and manages the assembly of users' virtual desktops and application environments and brokers connections between users and their virtual desktops and applications. It controls the state of the desktops, starting and stopping them, based on demand and administrative configuration.

Also, from the Delivery Controller server, you manage the complete XenApp infrastructure, starting from managing the administrator to optimizing the user experience. This is the first server that you install to create the XenApp environment. When installing this, you configure most of the parts starting from naming your site, configuring the database, specifying your License Server, and other tasks.

Citrix^® Studio

Citrix Studio is a high-level admin console to configure and manage the XenApp and XenDesktop components. Admin can do the following tasks with the help of Citrix Studio:

Configure sites
Create and manage Machine Catalog
Create and manage delivery groups
Create Citrix policies for users and computers
Set up configuration logging
Configure the task for administrator, licensing, StoreFront, and others

Key benefits

• Learn to implement and configure components of Citrix® XenApp® 7.6, which are XenServer®, XenApp®, Citrix® License server, PVS, Storefront, Citrix® Receiver, and Netscaler to secure WAN traffic

• Build the XenApp® 7.6 environment independently and perform tests to make sure the components are working as expected for internal and external traffic

• Implement advanced tools in Citrix® XenApp® to build and manage a cost effective, secure, and high-performing application delivery infrastructure with this comprehensive guide

Description

Citrix® XenApp® is one of the leading pieces of Application delivery software that delivers Windows compatible apps to users on any device, anywhere. Citrix® XenApp® also gives administrators the ability to manage and control the freedom of mobility by increasing the security and saving costs at the same time. This book will provide you with all the knowledge required to successfully deploy and master a complete Citrix® hosted application. First, it will cover essential concepts of the architecture of XenApp®. You will then learn how to set up Hypervisor and how to set up Infrastructure components. Next you will learn how to Set up Citrix® Components, XenApp® resources, PVS, and Netscaler. We will further look at how to prepare the environment for Rollout. Additionally, you will learn how to configure the Citrix® components such as Citrix® Director. Moreover, you’ll learn about shared desktop for delivery to end users and the application of policies for effective and secure delivery. Finally, you will learn how to implement provisioning services for a Citrix® XenApp® 7.6 environment.

Who is this book for?

This is book is for administrators who are currently managing the implemented environment and want to learn how to deploy the Citrix® Hosted virtualization solution for the application in a windows server 2012 R2 environment. A reasonable knowledge and understanding of core XenApp® elements and concepts used during virtualizing applications are assumed.

What you will learn

• Understand how to set up Hypervisor, install the management console, configure the storage repository, and create a virtual machine on hypervisor

• Set up an Infrastructure component and explore ways to tune them up so that they can be used for Citrix® environment

• Set up a Domain controller, DHCP, Certificate authority, and SQL server for static database for Citrix® XenApp®

• Validate the Citrix® XenApp® 7.6 solution to make sure components are communicating properly

• Manage the essential Citrix® components – Director, Licensing, and Policies with the Help of Citrix® studio

• Optimize the behavior of an Application and share desktop via Policies

• Installing and configuring Citrix® Provisioning services to deliver Citrix® XenApp® 7.6 virtual machines

• Secure the external Delivery of an application and shared desktop via netscaler to enjoy mobility

What do you get with eBook?

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Amazon verified reviews

Amazon Customer Jan 23, 2016

I have to admit that it has covered all the topics which is wish to get from tip to toe like setting up from the infrastructural components like AD, DNS, DHCP, ADCS to the Citrix Core Components like Citrix License server, Storefront, Controller, Covering MCS, Provisioning technologies, and printing which is a massive concepts in the XenApp/XenDesktop World, Policies and securing the environment with the Netscalar for external access.Thanks to Packt Pulishing to bring up the Book which covers all the features of Citrix XenApp/XenDesktop 7.6 and wish to get with even on XenApp 7.7/7.8

Amazon Verified review

CaprCisco Jun 26, 2019

good

Tim Kramer Jan 17, 2016

This book states that it is aimed at (at least) the administrator who has some experience with operating XenApp but wants to learn how to implement it. After reading through it, I'd add that it's aimed at the (current or soon-to-be) enterprise administrator (one who has experience with Microsoft's various protocols like Active Directory, DHCP, Kerberos, and similar)Because I'm attempting to learn the entire thing from scratch, I had to research some of the acronyms (FMA, POC lab, etc.). I've worked with vSphere and vCenter, where concepts are familiar but implementation is different enough that I could easily cause problems. Having this book kept me out of trouble.I'd recommend this book to anyone just starting out as a XenApp implementer. The book provides step-by-step procedures (with screen captures) for setting up an instance of XenApp 7.6.

Tim B. Jan 14, 2016

I have to admit that I was kind of tense going into this book but only because I knew how much XenApp has changed from 6.x to 7.x. I didn't know what to expect but I can tell you that I am extremely glad that I picked up this book. Sunny has done a fantastic job with this one. It is over 250 pages of step-by-step and how-to info. There is no fluff at all. It's all "meat and potatoes" as they say. It is a great companion to the other Packt book Getting Started with Citrix XenApp 7.6. After reading both and a very small amount of lab time, I'm confident that I can go get certified tomorrow.

Olaf Sommer Jan 13, 2016

A very good book that concentrates to all themes of the newest Version of Citrix XenApp 7.6. Each chapter gives an overview and deep insight in technical details. Exactly what you need for the daily business. My favorite chapter is about configure Citrix policies. There are some tips I did not know so far. I would buy this book again.

Mastering XenApp??: Master the skills required to implement Citrix® XenApp® 7.6 to deploy a complete Citrix®-hosted application from scratch

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Going mobile

HDX™ user experience

Cloud-ready

Any Windows, web, or SaaS application

Open, scalable, and proven

Citrix Receiver™

Citrix® Director

StoreFront™

Delivery Controller

Citrix® Studio

Key benefits

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