Terminal Services
• Terminal Services is the modern equivalent
of mainframe computing, in which servers
perform most of the processing and clients
are relatively simple devices that provide the
user interface.
• Terminal Services works by running
applications on a Windows Server 2008
server and enabling desktop computers to
operate those applications from a remote
location.
Terminal Services Components
• Terminal Server
• Remote Desktop Connection Client
• Remote Desktop Protocol (RDP)
Terminal Services
Remote Desktop Connection
RDC and ActiveX Control
• By default, Windows Server 2008 Terminal
Services includes the downloadable ActiveX
control for clients that are not running
Remote Desktop Connection 6.0 or later.
• This includes all computers running
Windows operating systems prior to
Windows XP SP2, and Windows XP SP2
computers that don’t have RDC 6.0
installed.
Remote Desktop Protocol (RDP)
Planning a Terminal Services Deployment
• Security
• Licensing
• Local resources
• Memory management
Advantages of Terminal Services
• Reduced client hardware requirements.
• Simplified application deployment.
• Easy configuration and updates.
• Low network bandwidth consumption.
• Support for thin clients.
• Conservation of licenses.
• Power savings.
• No client backups.
• Remote control help and training.
Terminal Services
• Keep in mind that while Terminal Services
might save money on desktop hardware, you
might have to upgrade your servers (or
purchase additional ones) to support the
Terminal Services traffic, and you will
certainly have to purchase Terminal Services
client access licenses (TS CALs) for your
users or devices.
Terminal Services Hardware
• The selection of appropriate hardware for a
terminal server should be based on the
following factors:
– Number of users connected to the server at
any one time.
– Applications users need.
– Number of users who access each
application.
– Using RemoteApp vs complete remote
desktops.
RemoteApp
• RemoteApp is a new Terminal Services feature that
enables clients to run terminal server applications
within individual windows.
• The windows are resizable.
• They have standard system menu and title bar
buttons, and they are not constrained by a
Terminal Services desktop.
• A RemoteApp window is, in most cases,
indistinguishable from a window containing a local
application.
RemoteApp
• When two different client computers launch
RemoteApp applications using the same terminal
server, the server creates two separate sessions,
each with its own virtualized environment.
• However, when a single client computer launches
two RemoteApp applications on the same terminal
server, the server uses one session for both
applications.
• Therefore, it is possible for a fault in one
application to affect the performance of the other.
Terminal Server Licensing
• A Terminal Services deployment needs only one TS
Licensing server for the entire installation
regardless of the number of terminal servers on
your network.
• The process of installing a TS Licensing server and
preparing it for use consists of the following basic
steps:
– Install the TS Licensing role service.
– Activate the TS Licensing server.
– Install the TS CALs on the TS Licensing server.
– Configure the licensing settings on the terminal
servers.
Terminal Services Licensing Mode
Hyper-V Architecture
Windows Server 2008 and Hyper-V
Hyper-V Manager Console
Settings Configuration Interface
for Hyper-V Virtual Machine
Summary
• Terminal Services works by running
applications on a Windows Server 2008
server and enabling desktop computers to
operate those applications from a remote
location.
Summary
• To make the desktop or application appear
on the client computer, the server transmits
data and instructions that enable the client
to render the graphical interface on its
display.
• In return, to manipulate the applications
running on the server, the client program
transmits the user’s keystrokes and mouse
movements.
Summary
• Terminal Services implements the server,
client, and protocol elements with the
following three components: Terminal
Server, Remote Desktop Connection client,
and Remote Desktop Protocol (RDP).
Summary
• Clients connecting to a Windows Server
2008 terminal server must have client
access licenses, in addition to any licenses
needed for their operating system and
applications.
• Terminal Services provides a 120-day grace
period during which licenses are not
necessary.
Summary
• RemoteApp is a new Terminal Services
feature that enables clients to run terminal
server applications within individual
windows. The windows are resizable; they
have standard taskbar buttons, and they are
not constrained by a Terminal Services
desktop.
Summary
• A virtual server is a complete installation of
an operating system that runs in a software
environment emulating a physical computer.
• Applications such as Microsoft Virtual Server
2005 and the Windows Server virtualization
technology in Windows Server 2008 make it
possible for a single computer to host
multiple virtual machines, each of which
runs in a completely independent
environment.
Summary
• Hyper-V is a new server role that provides
hypervisor-based virtualization on 64-bit Windows
Server 2008 computers.
• This enables the administrator to create multiple
virtual machines on a single physical computer,
each of which runs a separate operating system.
• You can virtualize individual applications, as well
as operating systems, by using Terminal Services
RemoteApp or Microsoft SoftGrid Application
Virtualization.