BPM

1. ULTEO OPEN VIRTUAL DESKTOP
V4.0.2
ARCHITECTURE OVERVIEW

2. Ulteo Open Virtual Desktop v4.0.2
Contents
1 Introduction 2
2 Servers Roles 3
2.1 Session Manager . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.2 Application Server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.3 Web Portal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.4 Web Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.5 File Server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.6 Gateway . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3 Subsystem 5
4 Overview ports and protocols 6
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3. Ulteo Open Virtual Desktop v4.0.2
Section 1 Introduction
The purpose of this documentation is to provide a high-level description of the archi-
tecture typically used in an Ulteo Open Virtual Desktop server farm.
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4. Ulteo Open Virtual Desktop v4.0.2
Section 2 Servers Roles
A typical Ulteo OVD installation uses several servers with different roles. Some of the
server roles are required and others are optional.
2.1 Session Manager
This server is the central piece of an Ulteo OVD server farm and always required. It
manages the session establishment from a client and hosts the administration con-
sole. The Session Manager should be installed prior to any other server.
Ulteo provides various Linux packages for installing the Session Manager on a Linux
server. It should also be possible to install and run the Session Manager on Windows,
but this must be done directly from the available source code. Ulteo does not provide
a Windows installer.
2.2 Application Server
Ulteo OVD is an application and desktop delivery solution. The Application Server in
the OVD solution is the server that hosts the applications and is accessed from the
client using a remote display protocol.
The Application Server can be either a Linux system or a Windows system depend-
ing on the type of applications or desktop you want to deliver. Of course, you can
mix Linux and Windows machines in an Ulteo OVD farm to deliver applications from
different systems.
2.3 Web Portal
This Web Portal server is responsible for managing browser-based client sessions. In
OVD 4, there are 2 types of browser-based sessions. The first type of browser session
uses a Java applet within the browser to communicate with the Web Portal. In this case,
the Web Portal supplies the Java applet if it is not already available in the browser. The
second type of browser session requires an HTML5 compliant browser on the client
machine, no software will be installed on the client machine. In both cases, the OVD
session is tunneled over an SSL session. In addition, the OVD Web Portal provides
capabilities for other web sites to integrate with OVD.
Users may decide to use one of the Ulteo OVD Native Clients to create an OVD session
instead of using a web browser. In that case, the Web Portal would not be required.
2.4 Web Applications
An OVD server may be configured to support Web Application Integration. This could
be installed as a standalone server or could be configured on an existing server with
different roles. The Web Application Integration provides seamless integration of Web
Applications into the OVD environment and a Single Sign On capability
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5. Ulteo Open Virtual Desktop v4.0.2
2.5 File Server
Within the Ulteo OVD application and desktop delivery solution, the File Server pro-
vides a centralized file management system that enables users to access the same files
independently of which application server is used to provide the application. This soft-
ware manages a network file system that the Application Servers access when users
are running sessions. It hosts both user profiles and data files and folders.
The File Server is currently provided for Linux based servers only. In a small OVD
server farm, the File Server may reside on the same physical machine as the Appli-
cation Server. In larger installations, the File Server would typically run on dedicated
hardware.
2.6 Gateway
Ulteo OVD uses several ports during the client session, mainly HTTPS (443) and RDP
(3389). But in some cases, for example when the user is remote, a firewall would
typically be configured to block access to the RDP port. The Gateway also can be used
to unify access to multiple Application Servers by providing a single point of access to
the clients.
The Gateway tunnels all the OVD connections over an HTTPS session. So from any-
where, users that have access to HTTPS (443), will also be able to start an Ulteo OVD
session.
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6. Ulteo Open Virtual Desktop v4.0.2
Section 3 Subsystem
The Subsystem is an archive built and delivered by Ulteo containing an Application
Server, a File Server and a typical Ulteo desktop pre-installed. It is the easiest way to
setup a demo architecture. It can be installed on any Linux distribution supported by
Ulteo.
The subsystem archive can be downloaded when the Session Manager has been in-
stalled in order to simplify the deployement of Linux OVD Application Servers.
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7. Ulteo Open Virtual Desktop v4.0.2
Section 4 Overview ports and protocols
The following diagram presents an overview of ports and protocols used in Ulteo Open
Virtual Desktop.
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