HP Compaq t5515 Service manual

Administrator’s Guide
Linux-based Thin Clients
Document Part Number: 370592-002
June 2004
This guide provides network administrators with basic instructions
for configuring Linux-based thin clients.

© Copyright 2004 Hewlett-Packard Development Company, L.P.
The information contained herein is subject to change without notice.
Microsoft, MS-DOS, Windows, and Windows NT are trademarks of Microsoft
Corporation in the U.S. and other countries.
Adobe, Acrobat, and Acrobat Reader are trademarks or registered trademarks of
Adobe Systems Incorporated.
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warranty statements accompanying such products and services. Nothing herein
should be construed as constituting an additional warranty. HP shall not be liable
for technical or editorial errors or omissions contained herein.
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No part of this document may be photocopied, reproduced, or translated to
another language without the prior written consent of Hewlett-Packard
Company.
ÅWARNING: Text set off in this manner indicates that failure to follow
directions could result in bodily harm or loss of life.
ÄCAUTION: Text set off in this manner indicates that failure to follow
directions could result in damage to equipment or loss of information.
Administrator’s Guide
Linux-based Thin Clients
Second Edition (June 2004)
Document Part Number: 370592-002

Administrator’s Guide www.hp.com iii
Contents
1 Introduction
Thin Client Linux . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–1
Support Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–2
Image Updates and Add-ons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–2
Availability of Open Source Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–2
Additional Linux Resources on the Web . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–3
Supported Devices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–3
Video. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–3
Printer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–5
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–5
Connectivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–6
Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–6
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–7
2 Desktop and Go Menu Programs
The Desktop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–1
XFce Panel Bar. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–2
Icons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–2
Taskbar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–2
Go Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–3
The Go Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–4
Citrix (ICA). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–4
rdesktop. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–5
Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–5
Console . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–6
Browser. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–7
VNC Viewer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–7
VNC Server. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–7
Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–8

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Contents
3 Settings
Date/Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–1
Desktop: backdrop. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–2
Display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–3
Keyboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–4
Mouse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–4
Network Management. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–5
Printer Manager. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–5
Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–5
System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–6
General Tab. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–6
About Tab. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–6
Taskbar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–7
XFce Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–7

Administrator’s Guide www.hp.com 1-1
1
Introduction
This guide provides the network administrator with instructions for
local and remote configuration of the Linux-based thin client and
explains the various utilities used to accomplish this task.
Typically, a terminal is configured locally and then used as a template
for other terminals, which then can be configured via remote
administration tools. Server and application connections can be
created through the Settings panel’s Network Settings dialog.
Chapters in this guide are specific to the desktop interface and
programs in the Go menu and the programs in Settings, which is the
control panel for the Linux-based image.
✎Not all features described in this guide are available in all
Linux-based terminal models.
✎A default user account is pre-installed:
User name: root
Password: root
This default account is also the Administrator “rights” account for
Linux. Therefore, it is recommended you change the password, and
create a new separate user account for non-administrator users.
Thin Client Linux
HP has developed this Linux image especially for thin client use by
integrating a comprehensive set of open source, commercial, and
custom-developed components. An Altiris client is provided for
remote management of the thin client and can be used for upgrading
the Linux image with feature enhancements, device drivers, and
maintenance updates.

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Introduction
Support Information
If you require support for your Linux-based thin client, contact your
region's HP Technical Support Center. While HP provides support for
Linux-based thin clients, HP does not provide technical support for
the Linux operating system or application components that are
obtained from the open source community.
Support contact information is available by clicking the Contact HP
link on the HP homepage or at
http://welcome.hp.com/country/us/en/contact_us.html
Image Updates and Add-ons
HP provides periodic updates to the image, as well as add-ons. Check
the HP support site for important documentation that provides
specific information for your image version and for installing
add-ons. Support documentation can be found at
www.hp.com/support/
Search for support documentation by entering your country, product
name and clicking Manuals.
Availability of Open Source Code
Open source code can be provided upon request. Refer to the
following webpage for information on how to obtain the open source
code:
http://h18004.www1.hp.com/products/thinclients/index_t5000.html

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Introduction
Additional Linux Resources on the Web
Busy Box: www.busybox.net
Linux Online: www.linux.org
Linux.com: www.linux.com
Linux on Laptops: www.linux-laptop.net
Linux Security: www.linuxsecurity.com
Linux Journal: www.linuxjournal.com
Linux Gazette: www.linuxgazette.com
Mozilla Browser: www.mozilla.org
HP white papers: www.hp.com/support/ (search for white papers by
entering your country, product name and clicking Manuals)
Supported Devices
The following tables list the devices initially known to be compatible
with the Linux image.
Video
The following table is a list of supported video devices.
✎Other monitors may be compatible and should be tested for initial
compatibility prior to usage.
Video
Option Brand Part Number
Monitor Compaq 5017M Flat panel
Monitor Compaq 7500
Monitor Compaq 7550
Monitor Compaq FS740

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Introduction
Monitor Compaq MV730i
Monitor Compaq MV740
Monitor Compaq MV920
Monitor Compaq MV940
Monitor Compaq P1220
Monitor Compaq P700
Monitor Compaq S700
Monitor Compaq S710
Monitor Compaq S910
Monitor Compaq V1100
Monitor Compaq V500
Monitor Compaq V700
Monitor Compaq V700
Monitor HP 1502 Flat Panel
Monitor HP 1530 Flat Panel
Monitor HP 7500
Monitor HP L1720 Flat panel
Video
Option Brand Part Number

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Introduction
Printer
The following table is a list of supported printers.
✎The Linux image provides for generic text support and postscript
support. Other printers may be compatible and should be tested for
initial compatibility prior to usage. For full printer feature support, the
appropriate printer device driver must be installed.
Accessories
The following table is a list of supported accessories.
Printer
Option Brand Part Number
Deskjet HP 930C
Deskjet HP 5550
Deskjet HP 5650
Deskjet HP 5850
Deskjet HP 6127
Laserjet HP 1200
Accessories
Option Brand Part Number
HP Keyboard - PS/2 HP 352750
HP Wheel Mouse - PS/2 HP DD440B
HP PCI Expansion Module w/Riser
Card
HP DE961A

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Introduction
Connectivity
The following table is a list of supported connectivity options.
Display
The following table is a list of supported display options.
Connectivity
Option Brand Part Number
HP Lucent 56k Modem - PCI HP DC131B
IBM 100/16/4 Token-Ring - PCI IBM 34L5201
Zoom 3049 56K v.92 Ext. Modem
Serial
Zoom 3049-00-00
Display
Option Brand Part Number
ELO Touch 1524L Flat Panel -
Serial
ELO D20932-000

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Introduction
Storage
The following table is a list of supported storage options.
Storage
Option Brand Part Number
HP 128MB DOK - USB v2.0 HP DQ819B
HP 256MB DOK - USB v2.0 HP DL973B
HP Multibay Caddy HP DC373A#ABA
HP Multibay FDD HP DC362A
HP Multibay CR ROM HP DC513B

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Introduction

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2
Desktop and Go Menu Programs
The Desktop
The Linux image includes XFce, a desktop environment that has an
Explorer-like shell (desktop) similar to typical Microsoft Windows
desktop features. These features should be familiar to most users of
Windows-based computers. The desktop includes a panel bar (the
XFce Panel Bar), Go menu, and a background image.
The desktop has the typical desktop functionality. To change the
display settings, right-click on the panel bar’s display icon. This
brings up the Display dialog where you can make changes to the
background, appearance, resolution and color quality settings, and
screen saver.
✎If you change the screen resolution setting, you must reboot for the
change to take effect. If you do not know if the screen resolution
mode you selected is supported by your monitor, click the Test
button.
✎You can also access the Display dialog box through Settings. Refer to
the “Display” section in Chapter 3, “Settings” for more information
on making changes to the display preferences.

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Desktop and Go Menu Programs
XFce Panel Bar
By default, the panel bar appears at the bottom of the screen and
includes the following features:
■Go button: brings up the Go menu
■active task buttons: for programs that are currently running
■lock icon: locks the screen
■audio icon: adjusts volume
■clock: adjusts time and date
By default, the panel bar is automatically displayed. However, the
panel bar can be configured so that it is hidden by opening the XFce
Panel dialog box under Settings and selecting the Auto hide check
box. If the Auto hide check box is selected, you must move the
pointer to the bottom of the screen to bring up the XFce panel bar.
Icons
The Linux-based thin client image does not support desktop icons.
Programs must be accessed through the XFce Panel Bar.
Taskbar
The taskbar contains four separate workspace icons. When one of
these icons is clicked, the workspace (or session) will open. Each
workspace can have different programs running. By default, the
taskbar is automatically displayed at the top of the screen. However,
the taskbar can be configured so that it is hidden by opening the
Taskbar dialog box under Settings and selecting the Auto hide check
box. If the Auto hide check box is selected, you must move the
pointer to the top of the screen to bring up the taskbar.

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Desktop and Go Menu Programs
Go Menu
When you single click on the Go button, a pop-up menu appears with
this list of programs that can be selected.
■Citrix (ICA)
■rdesktop
■Settings
■Console
■Browser (not available on all images)
■VNCviewer
■VNCserver
■Shutdown

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Desktop and Go Menu Programs
The Go Menu
The following sections in this chapter describe the programs available
in the Go menu
Citrix (ICA)
The Citrix (ICA) program allows you to set up and configure Citrix
ICA client connections.
To start the Citrix (ICA), select Go > Citrix.
ICA Client Settings
To view or set the preferences for ICA, select Go > Citrix > Tools >
Settings.
Connection View
In Connection View, you can create, modify, or launch connections
and begin a session on a Citrix server.
To access Connection View, select Go > Citrix > View > Go To >
Connection View.
Program Neighborhood Agent (PNAgent)
In PNAgent View, you can view and activate the applications that
have been published in the "neighborhood" on a Citrix server or
server farm.
To access PNAgent View, select Go > Citrix > View > Go To >
PNAgent View.

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Desktop and Go Menu Programs
rdesktop
The rdesktop program is an open source client for Windows NT
Terminal Server and Windows 2000/2003 Terminal Services, capable
of natively speaking Remote Desktop Protocol (RDP) in order to
present the user’s NT desktop.
The rdesktop program allows you to set up and configure RDP-type
client connections.
To start the rdesktop program, select Go > rdesktop.
The set up, configuration, and launch feature capabilities are as
provided by rdesktop. Documentation describing the feature set and
operation can be found at www.rdesktop.org.
Settings
The Linux image includes a control panel called Settings. Refer to
Chapter 3, “Settings” for a description of each program in Settings.

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Desktop and Go Menu Programs
Console
The Console provides a dialog box with a prompt “>” for entry of
various shell commands.
To start the Console, select Go > Console from the desktop.
The suite of commands provided are from the BusyBox suite. The
specific commands currently supported can be determined once the
Console dialog box is invoked. Complete documentation on the
commands syntax can be found at www.busybox.net.
BusyBox combines scaled down versions of many common UNIX
utilities into a single executable. The utilities in BusyBox generally
have fewer options than their full-featured GNU counterparts;
however, the options that are included in Busy Box provide the
expected functionality and behave very much like their GNU
counterparts.
Most BusyBox commands support the -h option to provide a terse
runtime description of their behavior.
Using Shell Commands
Shell commands are provided for administration of user management.
Use the Console dialog box for this purpose. User management shell
commands include:
■addgroup
■adduser
■chgrp
■delgroup
■deluser
■passwd
■chown
■su

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Desktop and Go Menu Programs
Browser
✎Currently, the browser is only included with the 128 MB version of
the thin client image.
The browser provided is the open source Mozilla browser.
Additionally, an Adobe Acrobat Reader plug-in is included in the
browser feature set. Configuration settings of the browser must be
specified prior to proper operation of the browser.
To start the browser, select Go > Browser from the desktop.
To configure the browser, click Edit > Preferences > Advanced
on the browser menu bar. Enter appropriate configuration information
as required of your environment, such as network settings, proxy, and
certificates.
✎Due to its size, the browser is stored in a compressed format in the
flash memory. For this reason, it may take the browser ten to 15
seconds to launch.
VNC Viewer
The VNC viewer dialog box provides connection to a VNC server.
This feature allows control of the desktop environment from another
thin client.
To start the VNC viewer dialog box, select Go > VNCviewer.
VNC Server
The VNC server dialog box provides the capabilities of a standard X
server. VNC server creates a virtual desktop which can be viewed or
controlled remotely using VNC viewer.
To start the VNC server dialog box, select Go > VNC server.

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Desktop and Go Menu Programs
Shutdown
The Shutdown dialog box provides power down options.
To start the Shutdown dialog box, select Go > Shutdown from the
desktop. Shutdown selection choices include:
■Quit current session
■Reboot
■Turn off computer