A Practical Guide to Ubuntu Linux
  • A Practical Guide to Ubuntu Linux
  • A Practical Guide to Ubuntu Linux

A Practical Guide to Ubuntu Linux

by Mark G. Sobell

The Most Complete, Easy-to-Understand, and Useful Guide to Ubuntu Linux Desktops and Servers

Ubuntu Linux is a state-of-the-art operating system, and you need a book that's just as advanced. Along with being the most comprehensive reference to installing, configuring, and working with Ubuntu, A Practical Guide to Ubuntu Linux® also provides

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The Most Complete, Easy-to-Understand, and Useful Guide to Ubuntu Linux Desktops and Servers

Ubuntu Linux is a state-of-the-art operating system, and you need a book that's just as advanced. Along with being the most comprehensive reference to installing, configuring, and working with Ubuntu, A Practical Guide to Ubuntu Linux® also provides extensive server coverage you won't find in any other Ubuntu book.

Best-selling author Mark Sobell begins by walking you through every feature and technique you need to know, from installing Ubuntu – using the DVD included with the book – to working with GNOME, Samba, exim4, Apache, DNS, NIS, firestarter, and iptables. Sobell's exceptionally clear explanations demystify everything from system security to Windows file/printer sharing.

Sobell presents full chapters on using Ubuntu from the command line and GUI; thorough system administration and security guidance; and up-to-the-minute, step-by-step instructions for setting up networks and every major type of Internet server. Along the way, you'll learn both the "hows" and the "whys" of Ubuntu. Sobell knows every Linux nook and cranny: He's taught hundreds of thousands of readers and never forgets what it’s like to be new to Linux. Whether you're a user, administrator, or programmer, this book gives you all you need – and more.

Don't settle for yesterday's Unbuntu Linux book…get the ONLY book that meets today's challenges and tomorrow's!

This book delivers…

  • Deeper coverage of the command line and the GNOME GUI, including GUI customization
  • Coverage of important Ubuntu topics, such as sudo and the new Upstart init daemon
  • More practical coverage of file sharing with Samba, NFS, and FTP
  • More detailed, usable coverage of Internet server configuration, including Apache, exim4, and DNS/BIND
  • More state-of-the-art security techniques, including firewall setup using firestarter and iptables, as well as a full chapter on OpenSSH and an appendix on security
  • Deeper coverage of “meat-and-potatoes” system and network administration tasks–from managing users to CUPS printing, configuring LANs to building a kernel
  • A more practical introduction to writing bash shell scripts
  • Complete instructions on how to keep your Linux system up-to-date using aptitude, Synaptic, and the Software Sources window
  • And much more…including a 500+ term glossary, five detailed appendixes, and a comprehensive index to help you find what you need fast

Print book includes DVD! Get the full version of the Ubuntu 7.10 (Gutsy Gibbon) release.

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Product Details

Prentice Hall
Publication date:
Edition description:
Book w/ DVD
Product dimensions:
7.40(w) x 9.25(h) x 2.20(d)

Related Subjects

Table of Contents

Preface xxxvi

Chapter 1: Welcome to Linux 1

The GNU—Linux Connection 2

The Linux 2.6 Kernel 5

The Heritage of Linux: UNIX 5

What Is So Good About Linux? 6

Overview of Linux 10

Additional Features of Linux 15

Conventions Used in This Book 17

Chapter Summary 20

Exercises 20

PART I: Installing Ubuntu Linux 21

Chapter 2: Installation Overview 23

The Live/Install Desktop CD/DVD 24

More Information 24

Planning the Installation 25

The Installation Process 36

Downloading and Burning a CD/DVD 37

Gathering Information About the System 41

Chapter Summary 42

Exercises 43

Advanced Exercises 43

Chapter 3: Step-by-Step Installation 45

Basic Installation from the Live/Install Desktop CD/DVD 46

Graphical Partitioners 53

Upgrading to a New Release 59

Installing KDE 60

Setting Up a Dual-Boot System 61

Advanced Installation 62

The X Window System 74

Chapter Summary 83

Exercises 83

Advanced Exercises 84

PART II: Getting Started with Ubuntu Linux 85

Chapter 4: Introduction to Ubuntu Linux 87

Curbing Your Power: root Privileges/sudo 88

A Tour of the Ubuntu Linux Desktop 89

Getting the Most out of the Desktop 105

Updating, Installing, and Removing Software Packages 119

Where to Find Documentation 124

More About Logging In 132

Working from the Command Line 136

Controlling Windows: Advanced Operations 139

Chapter Summary 142

Exercises 143

Advanced Exercises 144

Chapter 5: The Linux Utilities 145

Special Characters 146

Basic Utilities 147

Working with Files 149

(Pipe): Communicates Between Processes 156

Four More Utilities 157

Compressing and Archiving Files 159

Locating Commands 164

Obtaining User and System Information 166

Communicating with Other Users 170

Email 171

Tutorial: Creating and Editing a File with vim 172

Chapter Summary 179

Exercises 181

Advanced Exercises 182

Chapter 6: The Linux Filesystem 183

The Hierarchical Filesystem 184

Directory Files and Ordinary Files 184

Pathnames 189

Directory Commands 191

Working with Directories 196

Access Permissions 199

ACLs: Access Control Lists 203

Links 209

Chapter Summary 214

Exercises 216

Advanced Exercises 218

Chapter 7: The Shell 219

The Command Line 220

Standard Input and Standard Output 226

Running a Program in the Background 237

Filename Generation/Pathname Expansion 239

Builtins 243

Chapter Summary 244

Exercises 245

Advanced Exercises 247

PART III: Digging into Ubuntu Linux 249

Chapter 8: Linux GUIs: X and GNOME 251

X Window System 252

The Nautilus File Browser Window 260

GNOME Utilities 266

Chapter Summary 271

Exercises 272

Advanced Exercises 272

Chapter 9: The Bourne Again Shell 275

Background 276

Shell Basics 277

Parameters and Variables 295

Special Characters 309

Processes 310

History 312

Aliases 328

Functions 331

Controlling bash Features and Options 334

Processing the Command Line 338

Chapter Summary 347

Exercises 349

Advanced Exercises 351

Chapter 10: Networking and the Internet 353

Types of Networks and How They Work 355

Communicate Over a Network 370

Network Utilities 372

Distributed Computing 379

Usenet 388

WWW: World Wide Web 390

Chapter Summary 392

Exercises 393

Advanced Exercises 394

Chapter 11: Programming the Bourne Again Shell 395

Control Structures 396

File Descriptors 429

Parameters and Variables 432

Builtin Commands 444

Expressions 458

Shell Programs 466

Chapter Summary 476

Exercises 478

Advanced Exercises 480

PART IV: System Administration 483

Chapter 12: System Administration: Core Concepts 485

Running Commands with root Privileges 487

The Upstart Event-Based init Daemon 500

System Operation 510

Avoiding a Trojan Horse 520

Getting Help 522

Textual System Administration Utilities 522

Setting Up a Server 527

nsswitch.conf: Which Service to Look at First 542

PAM 545

Chapter Summary 550

Exercises 551

Advanced Exercises 551

Chapter 13: Files, Directories, and Filesystems 553

Important Files and Directories 554

File Types 566

Filesystems 570

Chapter Summary 580

Exercises 580

Advanced Exercises 581

Chapter 14: Downloading and Installing Software 583

JumpStart: Installing and Removing Packages Using aptitude 585

Finding the Package That Holds a File You Need 587

APT: Keeps the System Up-to-Date 588

dpkg: The Debian Package Management System 598

BitTorrent 604

Installing Non-dpkg Software 607

wget: Downloads Files Noninteractively 609

Chapter Summary 610

Exercises 610

Advanced Exercises 610

Chapter 15: Printing with CUPS 611

Introduction 612

JumpStart I: Configuring a Local Printer 614

system-config-printer: Configuring a Printer 614

JumpStart II: Configuring a Remote Printer Using the CUPS Web Interface 618

Traditional UNIX Printing 622

Configuring Printers 624

Printing from Windows 630

Printing to Windows 632

Chapter Summary 633

Exercises 633

Advanced Exercises 633

Chapter 16: Building a Linux Kernel 635

Prerequisites 636

Downloading the Kernel Source Code 637

Read the Documentation 638

Configuring and Compiling the Linux Kernel 639

Installing the Kernel, Modules, and Associated Files 646

Rebooting 647

grub: The Linux Boot Loader 647

dmesg: Displays Kernel Messages 654

Chapter Summary 655

Exercises 656

Advanced Exercises 656

Chapter 17: Administration Tasks 657

Configuring User and Group Accounts 658

Backing Up Files 662

Scheduling Tasks 668

System Reports 671

parted: Reports on and Partitions a Hard Disk 673

Keeping Users Informed 677

Creating Problems 678

Solving Problems 679

Chapter Summary 690

Exercises 690

Advanced Exercises 691

Chapter 18: Configuring a LAN 693

Setting Up the Hardware 694

Configuring the Systems 697

Setting Up Servers 702

More Information 703

Chapter Summary 703

Exercises 704

Advanced Exercises 704

PART V: Using Clients and Setting Up Servers 705

Chapter 19: OpenSSH: Secure Network Communication 707

Introduction 708

About OpenSSH 708

OpenSSH Clients 711

sshd: OpenSSH Server 720

Troubleshooting 724

Tunneling/Port Forwarding 725

Chapter Summary 727

Exercises 728

Advanced Exercises 728

Chapter 20: FTP: Transferring Files Across a Network 729

Introduction 730

More Information 731

FTP Client 731

FTP Server (vsftpd) 740

Chapter Summary 753

Exercises 753

Advanced Exercises 754

Chapter 21: exim4: Setting Up Mail Servers, Clients, and More 755

Introduction to exim4 756

JumpStart I: Configuring exim4 to Use a Smarthost 758

JumpStart II: Configuring exim4 to Send and Receive Email 760

How exim4 Works 761

Configuring exim4 765

SpamAssassin 768

Additional Email Tools 772

Authenticated Relaying 777

Alternatives to exim4 779

Chapter Summary 779

Exercises 780

Advanced Exercises 780

Chapter 22: NIS: Network Information Service 781

Introduction to NIS 782

How NIS Works 782

Setting Up an NIS Client 784

Setting Up an NIS Server 790

Chapter Summary 798

Exercises 798

Advanced Exercises 798

Chapter 23: NFS: Sharing Filesystems 799

Introduction 800

More Information 802

Setting Up an NFS Client 802

Setting Up an NFS Server 808

automount: Mounts Directory Hierarchies on Demand 818

Chapter Summary 821

Exercises 822

Advanced Exercises 822

Chapter 24: Samba: Linux and Windows File and Printer Sharing 823

Introduction 824

About Samba 825

JumpStart: Configuring a Samba Server Using shares-admin 826

swat: Configures a Samba Server 828

smb.conf: Manually Configuring a Samba Server 832

Accessing Linux Shares from Windows 838

Accessing Windows Shares from Linux 839

Troubleshooting 841

Chapter Summary 844

Exercises 844

Advanced Exercises 844

Chapter 25: DNS/BIND: Tracking Domain Names and Addresses 845

Introduction to DNS 846

About DNS 857

JumpStart: Setting Up a DNS Cache 858

Setting Up BIND 860

Troubleshooting 872

A Full-Functioned Nameserver 873

A Slave Server 877

A Split Horizon Server 878

Chapter Summary 883

Exercises 883

Advanced Exercises 884

Chapter 26: firestarter and iptables: Setting Up a Firewall 885

About firestarter 886

JumpStart: Building a Firewall Using the firestarter Firewall Wizard 888

firestarter: Maintains a Firewall 890

How iptables Works 896

About iptables 899

Anatomy of an iptables Command 900

Building a Set of Rules 901

Copying Rules to and from the Kernel 907

Sharing an Internet Connection Using NAT 908

Chapter Summary 912

Exercises 913

Advanced Exercises 913

Chapter 27: Apache: Setting Up a Web Server 915

Introduction 916

About Apache 917

JumpStart: Getting Apache Up and Running 919

Configuring Apache 921

Configuration Directives 925

The Ubuntu apache2.conf File 948

The Ubuntu default Configuration File 950

Redirects 951

Content Negotiation 951

Server-Generated Directory Listings (Indexing) 953

Virtual Hosts 953

Troubleshooting 956

Modules 957

webalizer: Analyzes Web Traffic 964

MRTG: Monitors Traffic Loads 964

Error Codes 964

Chapter Summary 965

Exercises 966

Advanced Exercises 966

PART VI: Appendixes 969

Appendix A: Regular Expressions 971

Characters 972

Delimiters 972

Simple Strings 972

Special Characters 972

Rules 975

Bracketing Expressions 976

The Replacement String 976

Extended Regular Expressions 977

Appendix Summary 979

Appendix B: Help 981

Solving a Problem 982

Finding Linux-Related Information 983

Specifying a Terminal 988

Appendix C: Security 991

Encryption 992

File Security 997

Email Security 997

Network Security 998

Host Security 1001

Security Resources 1006

Appendix Summary 1009

Appendix D: The Free Software Definition 1011

Appendix E: The Linux 2.6 Kernel 1015

Native Posix Thread Library (NPTL) 1016

IPSecurity (IPSec) 1016

Asynchronous I/O (AIO) 1016

O(1) Scheduler 1017

OProfile 1017

kksymoops 1017

Reverse Map Virtual Memory (rmap VM) 1017

HugeTLBFS: Translation Look-Aside Buffer Filesystem 1018

remap_file_pages 1018

2.6 Network Stack Features (IGMPv3, IPv6, and Others) 1018

Internet Protocol Virtual Server (IPVS) 1019

Access Control Lists (ACLs) 1019

4GB-4GB Memory Split: Physical Address Extension (PAE) 1019

Scheduler Support for HyperThreaded CPUs 1019

Block I/O (BIO) Block Layer 1019

Support for Filesystems Larger Than 2 Terabytes 1020

New I/O Elevators 1020

Interactive Scheduler Response Tuning 1020

Glossary 1021

Index 1071

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