Suse OpenSUSE 11.4 Owner's manual

openSUSE

www.suse.com11.4

December19,2011 Reference

Reference

Permission is granted to copy, distribute and/or modify this document under the terms of the GNU

Free Documentation License, Version 1.2 or (at your option) version 1.3; with the Invariant Section

being this copyright notice and license. A copy of the license version 1.2 is included in the section

entitled “GNU Free Documentation License”.

For Novell trademarks, see the Novell Trademark and Service Mark list http://www.novell

.com/company/legal/trademarks/tmlist.html. Linux* is a registered trademark of

Linus Torvalds. All other third party trademarks are the property of their respective owners. A trademark

symbol (®, ™ etc.) denotes a Novell trademark; an asterisk (*) denotes a third party trademark.

All information found in this book has been compiled with utmost attention to detail. However, this

does not guarantee complete accuracy. Neither Novell, Inc., SUSE LINUX Products GmbH, the authors,

nor the translators shall be held liable for possible errors or the consequences thereof.

Contents

About This Guide xiii

Part I Installation and Deployment 1

1Installation with YaST 3

1.1 Choosing the Installation Media . . . . . . . . . . . . . . . . . . . 3

1.2 Choosing the Installation Method . . . . . . . . . . . . . . . . . . . 5

1.3 The Installation Workow . . . . . . . . . . . . . . . . . . . . . . 8

1.4 System Start-Up for Installation . . . . . . . . . . . . . . . . . . . 9

1.5 TheBootScreen.......................... 9

1.6 Welcome ............................ 12

1.7 InstallationMode......................... 13

1.8 Clock and Time Zone . . . . . . . . . . . . . . . . . . . . . . . 16

1.9 DesktopSelection......................... 17

1.10 Suggested Partitioning . . . . . . . . . . . . . . . . . . . . . . . 17

1.11 CreateNewUser......................... 21

1.12 Installation Settings . . . . . . . . . . . . . . . . . . . . . . . . 25

1.13 Performing the Installation . . . . . . . . . . . . . . . . . . . . . 29

1.14 Conguration of the Installed System . . . . . . . . . . . . . . . . 30

1.15 GraphicalLogin.......................... 35

2Remote Installation 37

2.1 Installation Scenarios for Remote Installation . . . . . . . . . . . . . 37

2.2 Setting Up the Server Holding the Installation Sources . . . . . . . . . 46

2.3 Preparing the Boot of the Target System . . . . . . . . . . . . . . . 55

2.4 Booting the Target System for Installation . . . . . . . . . . . . . . . 65

2.5 Monitoring the Installation Process . . . . . . . . . . . . . . . . . 68

3Advanced Disk Setup 73

3.1 Using the YaST Partitioner . . . . . . . . . . . . . . . . . . . . . 73

3.2 LVMConguration........................ 81

3.3 Soft RAID Conguration . . . . . . . . . . . . . . . . . . . . . . 87

Part II Managing and Updating Software 91

4Installing or Removing Software 93

4.1 DenitionofTerms........................ 94

4.2 Using the KDE Interface (Qt) . . . . . . . . . . . . . . . . . . . . 95

4.3 Using the GNOME Interface (GTK+) . . . . . . . . . . . . . . . . . 102

4.4 Managing Software Repositories and Services . . . . . . . . . . . . 107

4.5 Keeping the System Up-to-date . . . . . . . . . . . . . . . . . . 111

5YaST Online Update 117

5.1 The Online Update Dialog . . . . . . . . . . . . . . . . . . . . . 118

5.2 Installing Patches . . . . . . . . . . . . . . . . . . . . . . . . 121

5.3 Automatic Online Update . . . . . . . . . . . . . . . . . . . . . 122

6Installing Packages From the Internet 125

6.1 1-ClickInstall.......................... 125

6.2 YaST Package Search . . . . . . . . . . . . . . . . . . . . . . . 127

7Installing Add-On Products 129

7.1 Add-Ons............................ 129

7.2 BinaryDrivers.......................... 130

8Managing Software with Command Line Tools 131

8.1 UsingZypper.......................... 131

8.2 RPM—the Package Manager . . . . . . . . . . . . . . . . . . . . 142

Part III Administration 153

9Managing Users with YaST 155

9.1 User and Group Administration Dialog . . . . . . . . . . . . . . . 155

9.2 Managing User Accounts . . . . . . . . . . . . . . . . . . . . . 157

9.3 Additional Options for User Accounts . . . . . . . . . . . . . . . . 159

9.4 Changing Default Settings for Local Users . . . . . . . . . . . . . . 166

9.5 Assigning Users to Groups . . . . . . . . . . . . . . . . . . . . . 167

9.6 ManagingGroups........................ 167

9.7 Changing the User Authentication Method . . . . . . . . . . . . . . 169

10 Changing Language and Country Settings with YaST 171

10.1 Changing the System Language . . . . . . . . . . . . . . . . . . . 171

10.2 Changing the Country and Time Settings . . . . . . . . . . . . . . 176

11 YaST in Text Mode 179

11.1 Navigation in Modules . . . . . . . . . . . . . . . . . . . . . . 180

11.2 Restriction of Key Combinations . . . . . . . . . . . . . . . . . . 181

11.3 YaST Command Line Options . . . . . . . . . . . . . . . . . . . 182

12 Setting Up Hardware Components with YaST 185

12.1 Hardware Information . . . . . . . . . . . . . . . . . . . . . . 185

12.2 Setting Up Sound Cards . . . . . . . . . . . . . . . . . . . . . . 186

12.3 Setting Up a Scanner . . . . . . . . . . . . . . . . . . . . . . . 189

13 Printer Operation 193

13.1 The Workow of the Printing System . . . . . . . . . . . . . . . . 194

13.2 Methods and Protocols for Connecting Printers . . . . . . . . . . . . 195

13.3 Installing the Software . . . . . . . . . . . . . . . . . . . . . . 196

13.4 Setting Up a Printer . . . . . . . . . . . . . . . . . . . . . . . 196

13.5 NetworkPrinters......................... 202

13.6 Printing from the Command Line . . . . . . . . . . . . . . . . . . 205

13.7 Special Features in openSUSE . . . . . . . . . . . . . . . . . . . 205

13.8 Troubleshooting......................... 207

14 Installing and Conguring Fonts for the Graphical User Interface 217

14.1 AddingFonts.......................... 218

15 Upgrading the System and System Changes 219

15.1 Upgrading the System . . . . . . . . . . . . . . . . . . . . . . 219

15.2 Software Changes . . . . . . . . . . . . . . . . . . . . . . . . 225

Part IV System 227

16 32-Bit and 64-Bit Applications in a 64-Bit System Environment 229

16.1 RuntimeSupport ........................ 229

16.2 Software Development . . . . . . . . . . . . . . . . . . . . . . 230

16.3 Software Compilation on Biarch Platforms . . . . . . . . . . . . . . 231

16.4 Kernel Specications . . . . . . . . . . . . . . . . . . . . . . . 232

17 Booting and Conguring a Linux System 233

17.1 The Linux Boot Process . . . . . . . . . . . . . . . . . . . . . . 233

17.2 TheinitProcess......................... 237

17.3 System Conguration via /etc/syscong . . . . . . . . . . . . . . . 245

18 The Boot Loader GRUB 249

18.1 Booting with GRUB . . . . . . . . . . . . . . . . . . . . . . . . 250

18.2 Conguring the Boot Loader with YaST . . . . . . . . . . . . . . . 260

18.3 Uninstalling the Linux Boot Loader . . . . . . . . . . . . . . . . . 266

18.4 Creating Boot CDs . . . . . . . . . . . . . . . . . . . . . . . . 266

18.5 The Graphical SUSE Screen . . . . . . . . . . . . . . . . . . . . 268

18.6 Troubleshooting......................... 268

18.7 For More Information . . . . . . . . . . . . . . . . . . . . . . 270

19 Special System Features 271

19.1 Information about Special Software Packages . . . . . . . . . . . . 271

19.2 VirtualConsoles......................... 278

19.3 Keyboard Mapping . . . . . . . . . . . . . . . . . . . . . . . . 279

19.4 Language and Country-Specic Settings . . . . . . . . . . . . . . . 280

20 Dynamic Kernel Device Management with udev 285

20.1 The /dev Directory....................... 285

20.2 Kernel uevents and udev .................... 286

20.3 Drivers, Kernel Modules and Devices . . . . . . . . . . . . . . . . 286

20.4 Booting and Initial Device Setup . . . . . . . . . . . . . . . . . . 287

20.5 Monitoring the Running udev Daemon............... 288

20.6 Inuencing Kernel Device Event Handling with udev Rules . . . . . . . 289

20.7 Persistent Device Naming . . . . . . . . . . . . . . . . . . . . . 296

20.8 Files used by udev ........................ 297

20.9 For More Information . . . . . . . . . . . . . . . . . . . . . . 297

21 Shell Basics 299

21.1 StartingaShell......................... 300

21.2 Entering Commands . . . . . . . . . . . . . . . . . . . . . . . 301

21.3 Working with Files and Directories . . . . . . . . . . . . . . . . . 305

21.4 BecomingRoot......................... 309

21.5 File Access Permissions . . . . . . . . . . . . . . . . . . . . . . 311

21.6 Useful Features of the Shell . . . . . . . . . . . . . . . . . . . . 316

21.7 EditingTexts .......................... 320

21.8 Searching for Files or Contents . . . . . . . . . . . . . . . . . . . 322

21.9 Viewing Text Files . . . . . . . . . . . . . . . . . . . . . . . . 323

21.10 Redirection and Pipes . . . . . . . . . . . . . . . . . . . . . . . 324

21.11 Starting Programs and Handling Processes . . . . . . . . . . . . . . 326

21.12 Important Linux Commands . . . . . . . . . . . . . . . . . . . . 327

22 Bash and Bash Scripts 339

22.1 What is “The Shell”? . . . . . . . . . . . . . . . . . . . . . . . 339

22.2 Writing Shell Scripts . . . . . . . . . . . . . . . . . . . . . . . 345

22.3 Redirecting Command Events . . . . . . . . . . . . . . . . . . . 346

22.4 UsingAliases.......................... 347

22.5 Using Variables in Bash . . . . . . . . . . . . . . . . . . . . . . 348

22.6 Grouping And Combining Commands . . . . . . . . . . . . . . . . 350

22.7 Working with Common Flow Constructs . . . . . . . . . . . . . . . 351

22.8 For More Information . . . . . . . . . . . . . . . . . . . . . . 352

Part V Services 355

23 Basic Networking 357

23.1 IP Addresses and Routing . . . . . . . . . . . . . . . . . . . . . 360

23.2 IPv6—The Next Generation Internet . . . . . . . . . . . . . . . . 363

23.3 NameResolution ........................ 373

23.4 Conguring a Network Connection with YaST . . . . . . . . . . . . 374

23.5 NetworkManager ........................ 395

23.6 Conguring a Network Connection Manually . . . . . . . . . . . . . 397

23.7 smpppd as Dial-up Assistant . . . . . . . . . . . . . . . . . . . . 414

24 SLP Services in the Network 417

24.1 Installation........................... 417

24.2 ActivatingSLP.......................... 418

24.3 SLP Front-Ends in openSUSE . . . . . . . . . . . . . . . . . . . . 418

24.4 Installation over SLP . . . . . . . . . . . . . . . . . . . . . . . 418

24.5 Providing Services via SLP . . . . . . . . . . . . . . . . . . . . . 419

24.6 For More Information . . . . . . . . . . . . . . . . . . . . . . 420

25 The Domain Name System 421

25.1 DNSTerminology........................ 421

25.2 Installation........................... 422

25.3 Conguration with YaST . . . . . . . . . . . . . . . . . . . . . . 422

25.4 Starting the BIND Name Server . . . . . . . . . . . . . . . . . . 433

25.5 The /etc/named.conf Conguration File . . . . . . . . . . . . . . . 434

25.6 ZoneFiles ........................... 439

25.7 Dynamic Update of Zone Data . . . . . . . . . . . . . . . . . . . 443

25.8 Secure Transactions . . . . . . . . . . . . . . . . . . . . . . . 443

25.9 DNSSecurity.......................... 445

25.10 For More Information . . . . . . . . . . . . . . . . . . . . . . 445

26 DHCP 447

26.1 Conguring a DHCP Server with YaST . . . . . . . . . . . . . . . . 448

26.2 DHCP Software Packages . . . . . . . . . . . . . . . . . . . . . 452

26.3 The DHCP Server dhcpd . . . . . . . . . . . . . . . . . . . . . 452

26.4 For More Information . . . . . . . . . . . . . . . . . . . . . . 456

27 Time Synchronization with NTP 457

27.1 Conguring an NTP Client with YaST . . . . . . . . . . . . . . . . 457

27.2 Manually Conguring ntp in the Network . . . . . . . . . . . . . . 462

27.3 Dynamic Time Synchronization at Runtime . . . . . . . . . . . . . . 463

27.4 Setting Up a Local Reference Clock . . . . . . . . . . . . . . . . . 463

28 Sharing File Systems with NFS 465

28.1 Installing the Required Software . . . . . . . . . . . . . . . . . . 465

28.2 Importing File Systems with YaST . . . . . . . . . . . . . . . . . . 466

28.3 Importing File Systems Manually . . . . . . . . . . . . . . . . . . 467

28.4 Exporting File Systems with YaST . . . . . . . . . . . . . . . . . . 469

28.5 Exporting File Systems Manually . . . . . . . . . . . . . . . . . . 474

28.6 NFS with Kerberos . . . . . . . . . . . . . . . . . . . . . . . . 477

28.7 For More Information . . . . . . . . . . . . . . . . . . . . . . 477

29 Samba 479

29.1 Terminology........................... 479

29.2 Installing a Samba Server . . . . . . . . . . . . . . . . . . . . . 481

29.3 Starting and Stopping Samba . . . . . . . . . . . . . . . . . . . 481

29.4 Conguring a Samba Server . . . . . . . . . . . . . . . . . . . . 481

29.5 Conguring Clients . . . . . . . . . . . . . . . . . . . . . . . . 488

29.6 Samba as Login Server . . . . . . . . . . . . . . . . . . . . . . 489

29.7 For More Information . . . . . . . . . . . . . . . . . . . . . . 490

30 The Apache HTTP Server 491

30.1 QuickStart........................... 491

30.2 Conguring Apache . . . . . . . . . . . . . . . . . . . . . . . 493

30.3 Starting and Stopping Apache . . . . . . . . . . . . . . . . . . . 508

30.4 Installing, Activating, and Conguring Modules . . . . . . . . . . . . 511

30.5 Getting CGI Scripts to Work . . . . . . . . . . . . . . . . . . . . 519

30.6 Setting Up a Secure Web Server with SSL . . . . . . . . . . . . . . 521

30.7 Avoiding Security Problems . . . . . . . . . . . . . . . . . . . . 528

30.8 Troubleshooting......................... 530

30.9 For More Information . . . . . . . . . . . . . . . . . . . . . . 531

31 Setting up an FTP server with YaST 533

31.1 Starting the FTP server . . . . . . . . . . . . . . . . . . . . . . 534

31.2 FTP General Settings . . . . . . . . . . . . . . . . . . . . . . . 535

31.3 FTP Performance Settings . . . . . . . . . . . . . . . . . . . . . 536

31.4 Authentication ......................... 536

31.5 ExpertSettings ......................... 537

31.6 For more information . . . . . . . . . . . . . . . . . . . . . . 537

Part VI Mobility 539

32 Mobile Computing with Linux 541

32.1 Laptops ............................ 541

32.2 MobileHardware ........................ 548

32.3 Cellular Phones and PDAs . . . . . . . . . . . . . . . . . . . . . 549

32.4 For More Information . . . . . . . . . . . . . . . . . . . . . . 549

33 Power Management 551

33.1 Power Saving Functions . . . . . . . . . . . . . . . . . . . . . . 551

33.2 Advanced Conguration and Power Interface (ACPI) . . . . . . . . . . 552

33.3 Rest for the Hard Disk . . . . . . . . . . . . . . . . . . . . . . 558

33.4 Troubleshooting......................... 559

33.5 For More Information . . . . . . . . . . . . . . . . . . . . . . 561

34 Wireless LAN 563

34.1 WLANStandards......................... 563

34.2 OperatingModes........................ 564

34.3 Authentication ......................... 565

34.4 Encryption........................... 566

34.5 Conguration with YaST . . . . . . . . . . . . . . . . . . . . . . 567

34.6 Tips and Tricks for Setting Up a WLAN . . . . . . . . . . . . . . . 575

34.7 Troubleshooting......................... 577

34.8 For More Information . . . . . . . . . . . . . . . . . . . . . . 579

35 Using NetworkManager 581

35.1 Use Cases for NetworkManager . . . . . . . . . . . . . . . . . . 581

35.2 Enabling NetworkManager . . . . . . . . . . . . . . . . . . . . 582

35.3 Conguring Network Connections . . . . . . . . . . . . . . . . . 582

35.4 Using KNetworkManager . . . . . . . . . . . . . . . . . . . . . 586

35.5 Using GNOME NetworkManager Applet . . . . . . . . . . . . . . . 589

35.6 NetworkManager and VPN . . . . . . . . . . . . . . . . . . . . 592

35.7 NetworkManager and Security . . . . . . . . . . . . . . . . . . . 593

35.8 Frequently Asked Questions . . . . . . . . . . . . . . . . . . . . 595

35.9 Troubleshooting......................... 596

35.10 For More Information . . . . . . . . . . . . . . . . . . . . . . 597

36 Using Tablet PCs 599

36.1 Installing Tablet PC Packages . . . . . . . . . . . . . . . . . . . . 600

36.2 Conguring Your Tablet Device . . . . . . . . . . . . . . . . . . . 601

36.3 Using the Virtual Keyboard . . . . . . . . . . . . . . . . . . . . 601

36.4 Rotating Your Display . . . . . . . . . . . . . . . . . . . . . . . 601

36.5 Using Gesture Recognition . . . . . . . . . . . . . . . . . . . . 602

36.6 Taking Notes and Sketching with the Pen . . . . . . . . . . . . . . 605

36.7 Troubleshooting......................... 606

36.8 For More Information . . . . . . . . . . . . . . . . . . . . . . 608

37 Copying and Sharing Files 609

37.1 Scenarios............................ 610

37.2 AccessMethods......................... 611

37.3 Accessing Files Using a Direct Connection . . . . . . . . . . . . . . 612

37.4 Accessing Files on Different OS on the Same Computer . . . . . . . . 614

37.5 Copying Files between Linux Computers . . . . . . . . . . . . . . . 615

37.6 Copying Files between Linux and Windows Computers with SSH . . . . . 622

37.7 Sharing Files between Linux Computers . . . . . . . . . . . . . . . 624

37.8 Sharing Files between Linux and Windows with Samba . . . . . . . . . 627

37.9 For More Information . . . . . . . . . . . . . . . . . . . . . . 630

AAn Example Network 631

BGNU Licenses 633

B.1 GNU General Public License . . . . . . . . . . . . . . . . . . . . 633

B.2 GNU Free Documentation License . . . . . . . . . . . . . . . . . 636

About This Guide

This manual gives you a general understanding of openSUSE®. It is intended mainly

for system administrators and home users with basic system administration knowledge.

Check out the various parts of this manual for a selection of applications needed in ev-

eryday life and in-depth descriptions of advanced installation and conguration scenarios.

Advanced Deployment Scenarios

Learn how to deploy openSUSE from a remote location and become acquainted

with complex disk setup scenarios.

Managing and Updating Software

Understand how to install or remove software with either YaST or using the com-

mand line, how to use the 1-Click Install feature, and how to keep your system up-

to-date.

Administration

Learn how to congure and upgrade openSUSE, how to administrate your system

in text mode, and get to know some important utilities for Linux administrators.

System

Get an introduction to the components of your Linux system and a deeper under-

standing of their interaction.

Services

Learn how to congure the various network and le services that come with

openSUSE.

Mobility

Get an introduction to mobile computing with openSUSE, get to know the various

options for wireless computing and power management.

Many chapters in this manual contain links to additional documentation resources.

These include additional documentation that is available on the system, as well as

documentation available on the Internet.

For an overview of the documentation available for your product and the latest docu-

mentation updates, refer to http://www.novell.com/documentation/

opensuse114 or to the following section.

1 Available Documentation

We provide HTML and PDF versions of our books in different languages. The following

manuals for users and administrators are available on this product:

Start-Up (↑Start-Up)

Guides you step-by-step through the installation of openSUSE from DVD, or from

an ISO image, gives short introductions to the GNOME and KDE desktops including

some key applications running on it. Also gives an overview of LibreOfce and

its modules for writing texts, working with spreadsheets, or creating graphics and

presentations.

Reference (page 1)

Gives you a general understanding of openSUSE and covers advanced system ad-

ministration tasks. It is intended mainly for system administrators and home users

with basic system administration knowledge. It provides detailed information about

advanced deployment scenarios, administration of your system, the interaction of

key system components and the set-up of various network and le services open-

SUSE offers.

Security Guide (↑Security Guide)

Introduces basic concepts of system security, covering both local and network se-

curity aspects. Shows how to make use of the product inherent security software

like Novell AppArmor (which lets you specify per program which les the program

may read, write, and execute) or the auditing system that reliably collects informa-

tion about any security-relevant events.

System Analysis and Tuning Guide (↑System Analysis and Tuning Guide)

An administrator's guide for problem detection, resolution and optimization. Find

how to inspect and optimize your system by means of monitoring tools and how

to efciently manage resources. Also contains an overview of common problems

and solutions and of additional help and documentation resources.

Virtualization with KVM (↑Virtualization with KVM)

This manual offers an introduction to setting up and managing virtualization with

KVM (Kernel-based Virtual Machine) on openSUSE. Also shows how to manage

VM Guests with libvirt and QEMU.

xiv Reference

Find HTML versions of most product manuals in your installed system under /usr/

share/doc/manual or in the help centers of your desktop. Find the latest documen-

tation updates at http://www.novell.com/documentation where you can

download PDF or HTML versions of the manuals for your product.

2 Feedback

Several feedback channels are available:

Bugs and Enhancement Requests

To report bugs for a product component, or to submit enhancement requests, please

use https://bugzilla.novell.com/. For documentation bugs, submit a

bug against the component Documentation for the respective product.

If you are new to Bugzilla, you might nd the following articles helpful:

•http://en.opensuse.org/openSUSE:Submitting_bug_reports

•http://en.opensuse.org/openSUSE:Bug_reporting_FAQ

User Comments

We want to hear your comments and suggestions about this manual and the other

documentation included with this product. Use the User Comments feature at the

bottom of each page in the online documentation or go to http://www.novell

.com/documentation/feedback.html and enter your comments there.

3 Documentation Conventions

The following typographical conventions are used in this manual:

•/etc/passwd: directory names and lenames

•placeholder: replace placeholder with the actual value

•PATH: the environment variable PATH

•ls,--help: commands, options, and parameters

About This Guide xv

•user: users or groups

•Alt,Alt +F1: a key to press or a key combination; keys are shown in uppercase as

on a keyboard

•File,File >Save As: menu items, buttons

•Dancing Penguins (Chapter Penguins, ↑Another Manual): This is a reference to a

chapter in another manual.

4 About the Making of This Manual

This book is written in Novdoc, a subset of DocBook (see http://www.docbook

.org). The XML source les were validated by xmllint, processed by xsltproc,

and converted into XSL-FO using a customized version of Norman Walsh's stylesheets.

The nal PDF is formatted through XEP from RenderX. The open source tools and the

environment used to build this manual are available in the package susedoc that is

shipped with openSUSE.

5 Source Code

The source code of openSUSE is publicly available. To download the source code,

proceed as outlined under http://en.opensuse.org/Portal:

Distribution/Features. If requested we send you the source code on a DVD.

We need to charge a $15 or €15 fee for creation, handling and postage. To request a

DVD of the source code, send an e-mail to [email protected] [mailto:

[email protected]] or mail the request to:

SUSE Linux Products GmbH

Product Management

openSUSE

Maxfeldstr. 5

D-90409 Nürnberg

Germany

xvi Reference

6 Acknowledgments

With a lot of voluntary commitment, the developers of Linux cooperate on a global

scale to promote the development of Linux. We thank them for their efforts—this dis-

tribution would not exist without them. Furthermore, we thank Frank Zappa and Pawar.

Special thanks, of course, goes to Linus Torvalds.

Have a lot of fun!

Your SUSE Team

About This Guide xvii

Part I. Installation and

Deployment

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