Thin- Client Computing for Windows

volleyballbeginnerΔίκτυα και Επικοινωνίες

27 Οκτ 2013 (πριν από 4 χρόνια και 2 μήνες)

99 εμφανίσεις

Thin
-

Client

Computing

for

Windows

1



Alan Darnell

University of
Alberta
Libraries

Thin
-

Client

Computing

for

Windows

2

Thin
-
Client
Computing Defined

WTS and MetaFrame
Compared

Implementation
Considerations

Applications

Thin
-

Client

Computing

for

Windows

3

Thin
-
Client Model

Login Server

Application
Server

PDC / BDC

File and Print
Services


Windows Terminal

Windows Terminal

Windows Terminal

Login Server

Thin
-
Client
Computing Defined

WTS and MetaFrame
Compared

Implementation
Considerations

Applications

Thin
-

Client

Computing

for

Windows

4

Family Tree

WinFrame

NT 3.51
-

Intel

Wincenter

NT 3.51

X
Protocol

NTrigue

NT 3.51

MultiWin
-

Hydra

ICA
-

Picasso

MetaFrame

NT 4.0
-

Intel


Windows NT
-

Terminal
Server Edition

Intel and Alpha

Wincenter
Connect for
MetaFrame

NT 4.0

T.Share

Thin
-
Client
Computing Defined

WTS and MetaFrame
Compared

Implementation
Considerations

Applications

Thin
-

Client

Computing

for

Windows

5

Thin
-
Client
Computing Defined

WTS and MetaFrame
Compared

Implementation
Considerations

Applications

WTS and MetaFrame Compared


Management tools


Display Protocol


Client software


Web Integration


Terminal Support

Thin
-

Client

Computing

for

Windows

6

Management Tools

Thin
-
Client
Computing Defined

WTS and MetaFrame
Compared

Implementation
Considerations

Applications


Shared set of tools in WinFrame 1.7 and WTS


monitor connections; User Manager extensions;auto logins;
idle timeouts; reconnecting sessions


New NT 4.0 style options for polices and profiles in
WTS / MetaFrame


Separate policies and profiles for WTS logins and
network logins


Application compatibility scripts


Thin
-

Client

Computing

for

Windows

7

WTS
-

Terminal Server Admin

Thin
-
Client
Computing Defined

WTS and MetaFrame
Compared

Implementation
Considerations

Applications

Thin
-

Client

Computing

for

Windows

8

WinFrame
-

WinStation Admin

Thin
-
Client
Computing Defined

WTS and MetaFrame
Compared

Implementation
Considerations

Applications

Thin
-

Client

Computing

for

Windows

9

Thin
-
Client
Computing Defined

WTS and MetaFrame
Compared

Implementation
Considerations

Applications

Display Protocols

MetaFrame

I
ndependent
C
omputing
A
rchitecture


Proprietary protocol
developed by Citrix


Local drive and device
mapping


Audio streaming


Shadowing sessions


IPX, NetBEUI support


256 colour support in user
defined resolutions up to
1280 x 1024

WTS

R
emote
D
esktop

P
rotocol


Based on T.Share (ITU
T.120 conferencing protocol)


T.Share used in NetMeeting


RDP supports subset of
T.Share functions


Limited to TCP/IP
connections


256 colour support up to
1600 x 1200

Thin
-

Client

Computing

for

Windows

10

Client Software

WTS


Win32, Win16, WinCE

Thin
-
Client
Computing Defined

WTS and MetaFrame
Compared

Implementation
Considerations

Applications

MetaFrame


Win32, Win16, WinCE


DOS


Mac


Unix (Solaris, Linux,
HP, SCO, DEC)


Plug
-
in (Win16 and 32)


Active
-
X Control


Java (JDK 1.0 and 1.1)


Thin
-

Client

Computing

for

Windows

11

Web Integration

Thin
-
Client
Computing Defined

WTS and MetaFrame
Compared

Implementation
Considerations

Applications

Thin
-

Client

Computing

for

Windows

12

Windows Terminals


Windows CE


Intel “Lean Client”
Specification


Sound, high
-
end video,
10/100Mbps Ethernet


Serial, Parallel, USB
ports


RDP and ICA support


No floppy drive


Boot from network or
flash memory


Thin
-
Client
Computing Defined

WTS and MetaFrame
Compared

Implementation
Considerations

Applications

NCD ThinSTAR 300


Local emulators
(TN3270, VT220)


Pricing under $1000
CDN


Manufactured by
Boundless, Wyse, NCD,
Neoware, Tektronix



Thin
-

Client

Computing

for

Windows

13

Windows Terminals

Thin
-
Client
Computing Defined

WTS and MetaFrame
Compared

Implementation
Considerations

Applications

VXL
EaziTC

IGEL “Instant TC”
Flash Linux Card


Upgrade for legacy PCs


Integrated ICA client


Not yet licensed for
RDP


Pricing under $500
CDN


Wireless tablets


High
-
cost ICA devices
for “roaming” users

Thin
-

Client

Computing

for

Windows

14

Windows Terminals

Thin
-
Client
Computing Defined

WTS and MetaFrame
Compared

Implementation
Considerations

Applications

RDP

ICA

X

Boundless

WYSE

NCD

Neoware

Tektronix


IGEL

VXL

Cruise

IBM

Tektronix Thinstream

Boundless Viewpoint TC

NCD Thinstar

IBM Network Station

Neoware Neostation

Wyse Winterm

Thin
-

Client

Computing

for

Windows

15

Comparison Summary

Thin
-
Client
Computing Defined

WTS and MetaFrame
Compared

Implementation
Considerations

Applications

Thin
-

Client

Computing

for

Windows

16

Implementation Considerations


Performance


Security


Licensing

Thin
-
Client
Computing Defined

WTS and MetaFrame
Compared

Implementation
Considerations

Applications

Thin
-

Client

Computing

for

Windows

17

Thin
-
Client
Computing Defined

WTS and MetaFrame
Compared

Implementation
Considerations

Applications

Server Configuration


PentiumPro or PII processors


WTS supports 4
-
way SMP systems “out of
the box”


32MB base memory with 4
-
12MB per user
session



RAID disk configuration (striping or striping
with parity)


100Mbps NIC

Thin
-

Client

Computing

for

Windows

18

Bandwidth Requirements


Single client uses approximately
12kbps of bandwidth


Compression


Queuing


Client
-
side Caching of bitmaps

Thin
-
Client
Computing Defined

WTS and MetaFrame
Compared

Implementation
Considerations

Applications

Thin
-

Client

Computing

for

Windows

19

Benchmarking

Thin
-
Client
Computing Defined

WTS and MetaFrame
Compared

Implementation
Considerations

Applications

From Compaq benchmark study of WTS.

Thin
-

Client

Computing

for

Windows

20

Benchmarking Navigator 3.01

Thin
-
Client
Computing Defined

WTS and MetaFrame
Compared

Implementation
Considerations

Applications

PII x 2 @ 300MHz with 512MB RAM

WinFrame 1.7 and 30 486/33’s running DOS ICA client

Thin
-

Client

Computing

for

Windows

21

Security


Encryption of data stream


WTS supports 3 levels


Low = 40 bit client to server


Medium = 40 bit two
-
way


High = 128 bit
-
two way


Authentication dialogs encrypted


NTFS
-
based file system security with ZAK
utilities to lock down read
-
write permissions


All objects in NT Server are assigned access
rights

Thin
-
Client
Computing Defined

WTS and MetaFrame
Compared

Implementation
Considerations

Applications

Thin
-

Client

Computing

for

Windows

22

Licensing


Windows NT Server Terminal Server Edition


Retail: $880 / MOLP
-
E: $160


Client Access Licenses (Per Seat)


Retail: $50 / MOLP
-
E: $8 CDN


NT Workstation 4.0 License (or upgrade
license from Win 3.11, WFW, Win95/98 )


Retail: $300 / MOLP
-
E: $80


MetaFrame
-

$4,995 US for 15 users

Thin
-
Client
Computing Defined

WTS and MetaFrame
Compared

Implementation
Considerations

Applications

Thin
-

Client

Computing

for

Windows

23

Applications


Extends life of legacy hardware


Kiosk applications


Web delivery of Windows applications


Access to Windows applications from non
-
Windows platforms


Task
-
oriented workers (Circulation,
Cataloguing)


Remote computing

Thin
-
Client
Computing Defined

WTS and MetaFrame
Compared

Implementation
Considerations

Applications