Rent 9780131470248 | Practical Guide to Red Hat(R) Linux(R) : A Fedora(TM) Core and Red Hat Enterprise Linux

Summary Table of Contents Author Biography

Mark Sobell's books are classics because he is a great writer and a technicalmaster. Well over 300,000 Sobell Unix and Linux books have been sold.This book is a comprehensive--and remarkably well-written--tutorial oninstalling, configuring, and using Red Hat Linux, Fedora Core 2 and Red HatEnterprise Linux editions.It is broken into seven parts: Part One is an introduction to Linux and to thebook itself; Part Two covers Linux installation, including installing Linux on adual-boot Windows XP/Linux machine; Part Three focuses on the core toolsrea... MOREders need to master to be effective using Linux; Part Four covers the KDEand GNOME graphical desktops; Part Five covers key system administrationconcepts.Part Six is brand new in this edition. It covers setting up and using the mostpopular Linux servers, including Samba, Apache, sendmail, NFS, NIS, DNS,DHCP, and FTP; Part Seven is an introduction to programming on Linux. Itcontains Sobell's masterful tutorial on Linux shell programming.Reference the comparison guide to see how Sobell stacks up in the market.

The best just became BETTER! Completely revised to meet all your Red Hat Linux needs!Fedora Core and Red Hat Enterprise Linux are advanced operating systems. You need a book that's just as advanced. This book explains Linux clearly and effectively--with a focus on the features you care about, including system security, Internet server setup, and sharing files and printers with Windows systems. Best-selling Linux AUTHOR Mark Sobell starts at the beginning and walks you through everything that matters, from installing Fedora Core using the included CDs to GNOME, KDE, Samba 3, sENDmail , Apache, DNS, NIS, and iptables . Along the way, you learn the "hows" and the "whys." Whether you are a user, an administrator, or a programmer, this book gives you all you need and more. Mark Sobell knows every Linux nook and cranny, has taught hundreds of thousands of readers, and never forgets what it's like to be new to Linux. Don't settle for yesterday's Linux book...get the ONLY book that meets today's challenges and tomorrow's! Compared with the other Linux books out there, A Practical Guide to Red Hatreg; Linuxreg;, Second EDITION, delivers... bull; bull;The full Fedora Core operating system on 4 CDs (not the truncated "PUBLISHER's EDITION") AND complete coverage of Fedora Core and the 2.6 Linux kernel, PLUS coverage of Red Hat Enterprise Linux bull;Deeper coverage of GNOME and KDE, including customization bull;More practical coverage of file sharing with Samba, NFS, and FTP bull;Easier-to-follow coverage of Internet server configuration including Apache, sENDmail , NFS, and DNS bull;More up-to-date coverage of security, including SELinux (Security Enhanced Linux), OpenSSH, and firewall setup using iptables bull;Better coverage of "meat-and-potatoes" system/network administration tasks bull;A more practical introduction to writing bash shell scripts bull;More complete coverage of configuring local and network printers using CUPS bull;And much more...including a 500+ word glossary and a comprehensive index to help you find what you need fast! Includes 4 CDs! Get the full version of Red Hat's Fedora Core 2 release!

Preface

xxxi

1 Welcome to Linux

(20)

The GNU-Linux Connection

(4)

... MORE

The Code Is Free

(1)

Have Fun!

(1)

The Linux 2.6 Kernel

(1)

The Heritage of Linux: UNIX

(1)

What Is So Good About Linux?

(3)

Why Linux Is Popular with Hardware Companies and Developers

(1)

Linux Is Portable

(1)

Standards

(1)

The C Programming Language

(1)

Overview of Linux

(5)

Linux Has a Kernel Programming Interface

(1)

Linux Can Support Many Users

(1)

Linux Can Run Many Tasks

(1)

Linux Provides a Secure Hierarchical Filesystem

(1)

The Shell: Command Interpreter and Programming Language

(1)

A Large Collection of Useful Utilities

(1)

Interprocess Communication

(1)

System Administration

(1)

Additional Features of Linux

(2)

GUI: Graphical User Interfaces

(2)

(Inter)networking Utilities

(1)

Software Development

(1)

Conventions Used in This Book

(4)

Chapter Summary

(1)

Exercises

(1)

PART I Installing Red Hat Linux

(52)

2 Installation Overview

(20)

More Information

(1)

Planning the Installation

(8)

Considerations

(1)

Installation Requirements

(1)

What Are You Installing: Fedora Core or Red Hat Enterprise Linux?

(1)

Installing a Fresh Copy or Upgrading an Existing Red Hat System?

(1)

Types of Installations (FEDORA)

(1)

Graphical or Textual Installation?

(1)

Setting Up the Hard Disk

(4)

RAID

(1)

LVM (Logical Volume Manager)

(1)

How the Installation Works

(2)

The Medium: Where Is the Source Data?

(1)

Formats

(1)

Sources

(1)

Downloading, Burning, and Installing a CD Set ( FEDORA)

(4)

Finding a Site to Download From

(1)

Finding the Right Files and Downloading Them

(2)

Using BitTorrent to Download the ISO Image Files

(1)

Checking the Files

(1)

Burning the CDs

(1)

Rescue CD

(1)

Collecting Information About the System

(1)

Chapter Summary

(1)

Exercises

(1)

Advanced Exercises

(1)

3 Step-by-Step Installation

(30)

Installing Red Hat Linux

(10)

Booting the System: The boot: Prompt

(1)

Boot Commands

(2)

The Anaconda Installer

(6)

When You Reboot

(1)

Initializing Databases

(1)

Installation Tasks

(9)

Using Disk Druid to Partition the Disk

(4)

Using the Kickstart Configurator

(1)

fdisk: Reports On and Partitions a Hard Disk

(3)

Setting Up a Dual-Boot System

(1)

The X Window System

(9)

system-config-display: Configuring the Display

(2)

The xorg.conf and XF86Config Files

(5)

gdm: Displays a Graphical Login

(1)

More Information

(1)

Chapter Summary

(1)

Exercises

(1)

Advanced Exercises

(1)

PART II Getting Started with Red Hat Linux

(142)

4 Introduction to Red Hat Linux

(42)

Curbing Your Power: Superuser/root/Administrator Access

(1)

A Tour of the Red Hat Linux Desktop

(18)

Logging In on the System

(2)

Getting the Most from the Desktop

(9)

Using Konqueror to Manage Files, Run Programs, and Browse the Web

(3)

Customizing Your Desktop with the Control Center

(2)

Customizing the Main Panel Using the Panel Menu

(2)

Getting the Facts: Where to Find Documentation

(7)

The KDE Help Center

(1)

man: Displaying the System Manual

(3)

info: Displaying Information About Utilities

(1)

HOWTOs: Finding Out How Things Work

(1)

Getting Help with Your System

(2)

More About Logging In

101

(9)

The Login Screen

102

(1)

What to Do If You Cannot Log In

103

(1)

Logging Out

103

(1)

Using Virtual Consoles

103

(1)

Logging In Remotely: Terminal Emulation and telnet

104

(1)

Changing Your Password

104

(2)

switchdesk: Changing Your Default Desktop

106

(1)

Logging In from a Terminal

106

(4)

Controlling Windows II

110

(3)

Changing the Input Focus

110

(1)

Changing the Resolution of the Display

111

(1)

Understanding the Window Manager

111

(2)

Session Management

113

(1)

Chapter Summary

113

(1)

Exercises

114

(1)

Advanced Exercises

115

(2)

5 The Linux Utilities

117

(40)

Special Characters

118

(1)

Basic Utilities

118

(3)

Is: Lists the Names of Files

119

(1)

cat: Displays a Text File

119

(1)

rm: Deletes a File

120

(1)

less Is more: Displaying a Text File One Screen at a Time

120

(1)

hostname: Displays Your Machine Name

120

(1)

Working with Files

121

(6)

cp: Copies a File

121

(1)

mv: Changes the Name of a File

122

(1)

Ipr: Prints a File

122

(1)

grep: Finds a String

123

(1)

head: Displays the Beginning of a File

124

(1)

tail: Displays the End of a File

125

(1)

sort: Displays a File in Order

125

(1)

uniq: Removes Duplicate Lines from a File

126

(1)

diff: Compares Two Files

126

(1)

file: Tests the Contents of a File

127

(1)

I (Pipe): Communicates Between Processes

127

(1)

Four More Utilities

128

(3)

echo: Displays Text

128

(1)

date: Displays the Time and Date

128

(1)

script: Records a Linux Session

129

(1)

mcopy: Converts Linux Files to Windows Format

130

(1)

Compressing and Archiving a File

131

(4)

gzip: Compresses a File

131

(1)

gunzip and zcat: Decompress a File

132

(1)

bzip2: Compresses/Decompresses a File

133

(1)

tar: Packs and Unpacks Files

133

(2)

Locating Commands

135

(2)

which, whereis: Locate a Utility

135

(2)

apropos: Searches for a Keyword

137

(1)

Obtaining User and System Information

137

(4)

who: Lists Users on the System

138

(1)

finger: Lists Users on the System

138

(2)

w: Lists Users on the System

140

(1)

Communicating with Other Users

141

(3)

write: Sends a Message

141

(1)

talk: Communicates with Another User

142

(2)

mesg: Denies or Accepts Messages

144

(1)

144

(1)

Tutorial: Creating and Editing a File with vim (vi)

145

(7)

Specifying a Terminal

145

(1)

Starting vim

145

(2)

Command and Input Modes

147

(1)

Entering Text

148

(1)

Getting Help

149

(2)

Ending the Editing Session

151

(1)

Chapter Summary

152

(2)

Exercises

154

(1)

Advanced Exercises

155

(2)

6 The Linux Filesystem

157

(32)

The Hierarchical Filesystem

157

(1)

Directory and Ordinary Files

158

(12)

Filenames

159

(3)

mkdir: Creates a Directory

162

(1)

The Working Directory

163

(1)

Home Directory

164

(1)

Absolute Pathnames

165

(1)

Relative Pathnames

166

(1)

Important Standard Directories and Files

167

(3)

Working with Directories

170

(3)

rmdir: Deletes a Directory

170

(1)

Pathnames

170

(1)

mv, cp: Moves or Copies a File

171

(1)

mv: Moves a Directory

172

(1)

Access Permissions

173

(4)

ls -1: Displays Permissions

173

(1)

chmod: Changes Access Permissions

174

(1)

Setuid and Setgid Permissions

175

(1)

Directory Access Permissions

176

(1)

Links

177

(6)

Hard Links

178

(2)

Symbolic Link

180

(2)

rm: Removes a Link

182

(1)

Chapter Summary

183

(1)

Exercises

184

(2)

Advanced Exercises

186

(3)

7 The Shell I

189

(26)

The Command Line

189

(5)

Syntax

190

(2)

Processing the Command Line

192

(1)

Executing the Command Line

193

(1)

Standard Input and Standard Output

194

(2)

The Screen as a File

195

(1)

The Screen/Keyboard as Standard Input and Standard Output

195

(1)

Redirection

196

(5)

Redirecting Standard Output

197

(1)

Redirecting Standard Input

198

(2)

Appending Standard Output to a File

200

(1)

/dev/null: Data Sink

201

(1)

Pipes

201

(3)

Filters

204

(1)

tee: Sends Output in Two Directions

204

(1)

Running a Program in the Background

204

(3)

Filename Generation/Pathname Expansion

207

(4)

The ? Special Character

207

(1)

The Special Character

208

(1)

The [ ] Special Characters

209

(2)

Builtins

211

(1)

Chapter Summary

211

(1)

Exercises

212

(2)

Advanced Exercises

214

(1)

PART III Digging Into Red Hat Linux

215

(152)

8 Linux GUIs: X, GNOME, and KDE

217

(34)

X Window System

217

(9)

Using X

220

(3)

Window Managers

223

(3)

Using GNOME

226

(11)

Using the Nautilus File Manager

226

(6)

GNOME Utilities

232

(5)

Using KDE

237

(10)

Konqueror Browser/File Manager

237

(7)

KDE Utilities

244

(3)

Chapter Summary

247

(1)

Exercises

248

(1)

Advanced Exercises

248

(3)

9 The Shell II: The Bourne Again Shell

251

(72)

Background

252

(1)

Shell Basics

253

(3)

Assignment Statements

253

(1)

Writing a Simple Shell Script

254

(2)

Separating and Grouping Commands

256

(4)

; and NEWLINE Separate Commands

256

(1)

\ Continues a Command

256

(1)

| and & Separate Commands and Do Something Else

257

(1)

Multitasking Demonstration

258

(1)

( ) Groups Commands

259

(1)

Redirecting Standard Error

260

(2)

noclobber: Avoids Overwriting Files

262

(1)

Job Control

262

(3)

jobs: Lists Jobs

263

(1)

fg: Brings a Job to the Foreground

263

(1)

bg: Sends a Job to the Background

264

(1)

Manipulating the Directory Stack

265

(2)

dirs: Displays the Stack

265

(1)

pushd: Pushes a Directory on the Stack

266

(1)

popd: Pops a Directory Off the Stack

267

(1)

Processes

267

(6)

Process Structure

268

(1)

Process Identification

268

(2)

Executing a Command

270

(1)

Running a Shell Script

270

(3)

Parameters and Variables

273

(20)

User-Created Variables

275

(7)

Keyword Variables

282

(5)

Positional Parameters

287

(4)

Special Parameters

291

(2)

History

293

(2)

Editing the Command Line

295

(10)

fc: Displays, Edits, and Reexecutes Commands

295

(3)

Reexecuting an Event with the C Shell History Mechanism

298

(3)

The Readline Library

301

(4)

Alias

305

(3)

Quotation Marks: Single versus Double

305

(1)

Examples

306

(2)

Command Line Expansion

308

(9)

Order of Expansion

309

(1)

{} Brace Expansion

309

(2)

~Tilde Expansion

311

(1)

$n Parameter Expansion

311

(1)

$VARIABLE Variable Expansion

312

(1)

$(...) Command Substitution

312

(1)

Arithmetic Expansion

313

(1)

Word Splitting

314

(1)

Pathname Expansion

315

(2)

Chapter Summary

317

(3)

Exercises

320

(2)

Advanced Exercises

322

(1)

10 Networking and the Internet

323

(44)

Types of Networks and How They Work

325

(16)

Broadcast

326

(1)

Point-to-Point

326

(1)

Switched

326

(1)

LAN: Local Area Network

327

(1)

WAN: Wide Area Network

328

(1)

Internetworking Through Gateways and Routers

328

(3)

Network Protocols

331

(3)

Host Address

334

(3)

CIDR: Classless Inter-Domain Routing

337

(2)

Hostnames

339

(2)

Communicate over a Network

341

(2)

finger: Displays Information About Remote Users

341

(1)

Sending Mail to a Remote User

342

(1)

Mailing List Servers

343

(1)

Network Utilities

343

(7)

Trusted Hosts

343

(1)

OpenSSH Tools

344

(1)

telnet: Logs in on a Remote System

344

(2)

ftp: Transfers Files over a Network

346

(1)

ping: Tests a Network Connection

346

(1)

traceroute: Traces a Route over the Internet

347

(1)

host and dig: Queries Internet Nameservers

348

(1)

whois: Looks Up Information About an Internet Site

348

(2)

Distributed Computing

350

(9)

The Client/Server Model

351

(1)

DNS: Domain Name Service

352

(2)

NIS: Network Information Service

354

(1)

NFS: Network Filesystem

354

(1)

Internet Services

354

(3)

Proxy Server

357

(1)

RPC Network Services

358

(1)

Usenet

359

(3)

WWW: World Wide Web

362

(2)

URL: Uniform Resource Locator

363

(1)

Browsers

363

(1)

Search Engine

364

(1)

Chapter Summary

364

(1)

Exercises

365

(1)

Advanced Exercises

366

(1)

PART IV System Administration

367

(194)

11 System Administration: Core Concepts

369

(56)

System Administrator and Superuser

371

(6)

System Administration Tools

373

(4)

Rescue Mode

377

(2)

Avoiding a Trojan Horse

378

(1)

Getting Help

379

(1)

SELinux ( FEDORA)

379

(1)

System Operation

380

(13)

Booting the System

381

(1)

Init Scripts: Start and Stop System Services

381

(5)

Emergency Mode

386

(1)

Single-User Mode

387

(1)

Going Multiuser

387

(1)

Multiuser/Graphics Mode

388

(1)

Logging In

388

(2)

Running a Program and Logging Out

390

(1)

Bringing the System Down

390

(2)

Crash

392

(1)

Useful Utilities

393

(6)

Red Hat Configuration Tools

393

(3)

Linux Utilities

396

(3)

Setting Up a Server

399

(14)

Standard Rules in Configuration Files

399

(2)

rpcinfo: Displays Information About portmap

401

(2)

The xinetd Super Server

403

(1)

Securing a Server

404

(4)

DHCP

408

(5)

nsswitch.conf: Which Service to Look at First

413

(3)

How nsswitch.conf Works

413

(3)

PAM

416

(6)

More Information

417

(1)

Configuration File, Module Type, and Control Flag

417

(2)

Example

419

(2)

Modifying the PAM Configuration

421

(1)

Chapter Summary

422

(1)

Exercises

423

(1)

Advanced Exercises

423

(2)

12 Files, Directories, and Filesystems

425

(28)

Important Files and Directories

425

(11)

File Types

436

(4)

Ordinary Files, Directories, Links, and Inodes

436

(1)

Special Files

437

(3)

Filesystems

440

(10)

mount: Mounts a Filesystem

442

(3)

umount: Unmounts a Filesystem

445

(1)

fstab: Keeps Track of Filesystems

445

(2)

fsck: Checks Filesystem Integrity

447

(1)

tune2fs: Changes Filesystem Parameters

447

(2)

RAID Filesystem

449

(1)

Chapter Summary

450

(1)

Exercises

450

(1)

Advanced Exercises

451

(2)

13 Downloading and Installing Software

453

(32)

system-config-packages: Adds and Removes Software Packages

453

(2)

rpm: Red Hat Package Manager

455

(3)

Querying Packages and Files

456

(1)

Installing, Upgrading, and Removing Packages

457

(1)

Installing a Linux Kernel Binary

458

(1)

Installing Non-rpm Software

458

(2)

The /opt and /usr/local Directories

458

(1)

GNU Configure and Build System

459

(1)

Keeping Software Up-to-Date

460

(9)

Bugs

461

(1)

Errata

461

(1)

Fedora, Red Hat Enterprise Linux, Red Hat Network, and up2date

462

(5)

Red Hat Network (RHEL)

467

(2)

Keeping the System Up-to-Date

469

(13)

yum: Updates and Installs Packages

469

(3)

Apt: An Alternative to yum

472

(6)

BitTorrent

478

(3)

wget: Download Files Noninteractively

481

(1)

Chapter Summary

482

(1)

Exercises

482

(1)

Advanced Exercises

483

(2)

14 Printing with CUPS

485

(22)

Introduction

485

(2)

Prerequisites

486

(1)

More Information

486

(1)

JumpStart I: Configuring a Local Printer Using system-config-printer

487

(2)

JumpStart II: Configuring a Remote Printer Using CUPS

489

(3)

Traditional UNIX Printing

492

(1)

Configuring Printers Using CUPS

493

(7)

The CUPS Web Interface

493

(2)

CUPS on the Command Line

495

(4)

Sharing CUPS Printers

499

(1)

The GNOME Print Manager

500

(1)

The KDE Printing Manager

501

(1)

Integration with Windows

502

(2)

Printing from Windows

502

(2)

Printing to Windows

504

(1)

Chapter Summary

504

(1)

Exercises

505

(1)

Advanced Exercises

505

(2)

15 Rebuilding the Linux Kernel

507

(14)

Preparing the Source Code

508

(1)

Locating the Source Code

508

(1)

Installing the Source Code

508

(1)

Read the Documentation

509

(1)

Configuring and Compiling the Linux Kernel

509

(4)

Cleaning the Source Tree

509

(1)

Configuring the Linux Kernel

510

(2)

Compiling the Linux Kernel

512

(1)

Using Loadable Kernel Modules

512

(1)

Installing the Kernel and Associated Files

513

(1)

Changing lilo.conf (RHEL)

513

(1)

grub.conf

513

(1)

Rebooting

514

(1)

Boot Loader

514

(3)

grub: The Linux Loader

514

(2)

lilo: The Linux Loader (RHEL)

516

(1)

LOADLIN: A DOS-Based Linux Loader

517

(1)

dmesg: Display Kernel Messages

517

(1)

Chapter Summary

518

(1)

Exercises

519

(1)

Advanced Exercises

519

(2)

16 Administration Tasks

521

(30)

Configuring User and Group Accounts

521

(3)

system-config-users: Manages User Accounts

521

(2)

useradd: Adds a User Account

523

(1)

userdel: Removes a User Account

523

(1)

groupadd: Adds a Group

523

(1)

Backing Up Files

524

(7)

Choosing a Backup Medium

525

(1)

Backup Utilities

525

(3)

Performing a Simple Backup

528

(1)

dump, restore: Back Up and Restore Filesystems

529

(2)

Scheduling Tasks

531

(1)

cron and crontab: Schedule Routine Tasks

531

(1)

at: Runs Occasional Tasks

531

(1)

kcron: Schedules Tasks

532

(1)

System Reports

532

(3)

vmstat: Reports Virtual Memory Statistics

533

(1)

top: Lists Processes Using the Most Resources

534

(1)

Keeping Users Informed

535

(1)

Creating Problems

536

(1)

Failing to Perform Regular Backups

536

(1)

Not Reading and Following Instructions

536

(1)

Failing to Ask for Help When Instructions Are Not Clear

536

(1)

Deleting or Mistyping a Critical File

537

(1)

Solving Problems

537

(11)

Helping When a User Cannot Log In

537

(1)

Speeding Up the System

538

(1)

Isof: Finds Open Files

539

(1)

Keeping a Machine Log

539

(1)

Keeping the System Secure

540

(1)

Log Files and Mail for root

541

(1)

Monitoring Disk Usage

541

(2)

logrotate: Manages Log Files

543

(2)

Removing Unused Space from Directories

545

(1)

Disk Quota System

545

(1)

syslogd: Logs System Messages

546

(2)

Chapter Summary

548

(1)

Exercises

548

(1)

Advanced Exercises

549

(2)

17 Configuring a LAN

551

(10)

Setting Up the Hardware

551

(3)

Connecting the Computers

552

(1)

Gateways and Routers

553

(1)

Network Interface Card (NIC)

553

(1)

Configuring the Systems

554

(3)

system-config-network: Configuring the Hardware

555

(2)

iwconfig: Configuring a Wireless NIC

557

(1)

Setting Up Servers

557

(2)

More Information

559

(1)

Summary

559

(1)

Exercises

559

(1)

Advanced Exercises

560

(1)

PART V Using Clients and Setting Up Servers

561

(242)

18 OpenSSH: Secure Network Communication

563

(20)

Introduction

563

(1)

About OpenSSH

564

(3)

Files

564

(2)

How OpenSSH Works

566

(1)

More Information

567

(1)

OpenSSH Clients

567

(7)

Prerequisites

567

(1)

JumpStart: Using ssh and scp

567

(1)

Setup

568

(2)

ssh: Connect to and Execute Commands on a Remote System

570

(2)

scp: Copying a File from/to a Remote System

572

(1)

sftp: A Secure FTP Client

573

(1)

~/.ssh/config and /etc/ssh/ssh_config Configuration Files

573

(1)

sshd: OpenSSH Server 574

Prerequisites

574

(1)

JumpStart: Starting the sshd Daemon

575

(1)

Authorized Keys: Automatic Login

575

(2)

Command Line Options

577

(1)

/etc/ssh/sshd_config Configuration File

577

(1)

Troubleshooting

578

(1)

Tunneling/Port Forwarding

579

(2)

Chapter Summary

581

(1)

Exercises

582

(1)

Advanced Exercises

582

(1)

19 FTP: Transferring Files Across a Network

583

(26)

Introduction

583

(1)

More Information

584

(1)

FTP Client

585

(9)

Prerequisites

585

(1)

JumpStart: Downloading Files Using ftp

585

(3)

Notes

588

(1)

Anonymous FTP

589

(1)

Automatic Login

589

(1)

Binary versus ASCII Transfer Mode

589

(1)

ftp Specifics

590

(4)

FTP Server (vsftpd)

594

(12)

Prerequisites

594

(1)

Notes

594

(1)

JumpStart: Starting a vsftpd Server

595

(1)

Testing the Setup

595

(1)

vsftpd.conf: Configuring vsftpd

596

(10)

Chapter Summary

606

(1)

Exercises

607

(1)

Advanced Exercises

607

(2)

20 sendmail: Setting Up Mail Clients, Servers, and More

609

(28)

Introduction

610

(2)

Prerequisites

610

(1)

More Information

611

(1)

JumpStart I: Configuring sendmail on a Client

612

(1)

JumpStart II: Configuring sendmail on a Server

612

(1)

How sendmail Works

613

(4)

Mail logs

614

(1)

Aliases and Forwarding

614

(2)

Related Programs

616

(1)

Configuring sendmail

617

(5)

The sendmail.mc and sendmail.cf Files

617

(2)

Other Files in /etc/mail

619

(3)

In Addition to sendmail

622

(9)

SpamAssassin

622

(3)

Webmail

625

(2)

Mailing Lists

627

(1)

Setting Up an IMAP or POP3 Server

628

(1)

Setting Up KMail

629

(2)

Authenticated Relaying

631

(2)

Alternatives to sendmail

633

(1)

Chapter Summary

633

(1)

Exercises

634

(1)

Advanced Exercises

634

(3)

21 NIS: Network Information Service

637

(18)

Introduction to NIS

637

(1)

How NIS Works

638

(2)

More Information

640

(1)

NIS Client Setup

640

(5)

Prerequisites

640

(1)

Notes

641

(1)

Step-by-Step

641

(1)

Test the Setup

642

(1)

yppasswd: Changing NIS Passwords

643

(2)

NIS Server Setup

645

(7)

Prerequisites

645

(1)

Notes

645

(1)

Step-by-Step

646

(5)

Testing

651

(1)

yppasswdd: NIS Password Update Daemon

651

(1)

Chapter Summary

652

(1)

Exercises

652

(1)

Advanced Exercises

653

(2)

22 NFS: Sharing Filesystems

655

(20)

Introduction

655

(3)

More Information

658

(1)

NFS Client

658

(6)

Prerequisites

658

(1)

JumpStart: Mounting a Remote Directory Hierarchy

658

(2)

mount: Mounts a Directory Hierarchy

660

(2)

Improving Performance

662

(1)

/etc/fstab: Mounts Directory Hierarchies Automatically

663

(1)

NFS Server

664

(7)

Prerequisites

664

(1)

JumpStart: system-config-nfs: Configures an NFS Server

664

(1)

Exporting a Directory Hierarchy

665

(5)

exportfs: Maintains the List of Exported Directory Hierarchies

670

(1)

Testing the Server Setup

670

(1)

automount: Mounting Directory Hierarchies Automatically

671

(2)

Chapter Summary

673

(1)

Exercises

673

(1)

Advanced Exercises

674

(1)

23 Samba: Integrating Linux and Windows

675

(24)

Which Version of Samba?

675

(1)

Introduction

676

(1)

About Samba

677

(2)

Prerequisites

677

(1)

More Information

677

(1)

Samba Users, User Maps, and Passwords

677

(2)

JumpStart: system-config-samba: Configuring a Samba Server

679

(2)

swat: Configuring a Samba Server

681

(3)

Manually Configuring a Samba Server

684

(7)

Parameters in the smbd.conf File

685

(6)

The [homes] Share: Sharing Users' Home Directories

691

(1)

Accessing Linux Shares from Windows

691

(1)

Browsing Shares

691

(1)

Mapping a Share

691

(1)

Accessing Windows Shares from Linux

692

(2)

smbtree: Displaying Windows Shares

692

(1)

smbclient: Connecting to Windows Shares

692

(1)

Browsing Windows Networks

693

(1)

smbmount: Mounting Windows Shares

693

(1)

Troubleshooting

694

(2)

Chapter Summary

696

(1)

Exercises

696

(1)

Advanced Exercises

697

(2)

24 DNS/BIND: Tracking Domain Names and Addresses

699

(38)

Introduction to DNS

699

(11)

Nodes, Domains, and Subdomains

701

(1)

Zones

702

(1)

Queries

703

(1)

Servers

704

(1)

DNS Database

705

(2)

DNS Query and Response

707

(1)

Reverse Name Resolution

708

(2)

About DNS

710

(1)

How DNS Works

710

(1)

Prerequisites

711

(1)

More Information

711

(1)

JumpStart 1: Setting Up a DNS Cache

711

(1)

JumpStart II: system-config-bind: Setting Up a Domain

712

(3)

Setting Up BIND

715

(9)

named.conf

715

(2)

Zone Files

717

(1)

A DNS Cache

717

(4)

DNS Glue

721

(1)

TSIG (Transaction Signatures)

722

(2)

Running BIND Inside a chroot Jail

724

(1)

Troubleshooting

724

(1)

A Full-functioned Nameserver

725

(4)

A Slave Server

729

(1)

A Split Horizon Server

730

(5)

Chapter Summary

735

(1)

Exercises

735

(1)

Advanced Exercises

736

(1)

25 iptables: Setting Up a Firewall

737

(22)

How iptables Works

737

(3)

About iptables

740

(1)

More Information

740

(1)

Prerequisites

740

(1)

Notes

741

(1)

JumpStart: Using system-config-securitylevel to Build a Firewall

741

(1)

Anatomy of an iptables Command

742

(2)

Building a Set of Rules

744

(7)

Commands

744

(1)

Packet Match Criteria

745

(1)

Display Criteria

746

(1)

Match Extensions

746

(2)

Targets

748

(2)

Copying Rules to and from the Kernel

750

(1)

A Rule Set Generated by system-config-securitylevel

751

(1)

Sharing an Internet Connection Using NAT

752

(4)

Connecting Several Clients to a Single Internet Connection

753

(2)

Connecting Several Servers to a Single Internet Connection

755

(1)

Chapter Summary

756

(1)

Exercises

756

(1)

Advanced Exercises

757

(2)

26 Apache (httpd): Setting Up a Web Server

759

(44)

Introduction

760

(1)

About Apache

760

(2)

Prerequisites

760

(1)

More Information

761

(1)

Notes

762

(1)

JumpStart I: Getting Apache Up and Running

762

(2)

Modifying the httpd.conf Configuration File

762

(1)

Testing Apache

763

(1)

Putting Your Content in Place

763

(1)

JumpStart II: Setting Up Apache with system-config-httpd

764

(2)

Filesystem Layout

766

(1)

Configuration Directives

767

(21)

Directives I: Directives You May Want to Modify As You Get Started

768

(4)

Contexts and Containers

772

(4)

Directives II

776

(12)

The Red Hat httpd.conf File

788

(2)

Section 1: Global Environment

788

(1)

Section 2: Main Server Configuration

789

(1)

Section 3: Virtual Hosts

790

(1)

Redirects

790

(1)

Multiviews

791

(1)

Server Generated Directory Listings (Indexing)

791

(1)

VirtualHosts

791

(1)

Troubleshooting

792

(1)

Modules

793

(6)

Module List

793

(1)

mod_cgi and CGI Scripts

794

(1)

mod_ssl

795

(2)

Authentication Modules and .htaccess

797

(1)

Scripting Modules

798

(1)

webalizer: Analyzing Web Traffic

799

(1)

MRTG: Monitoring Traffic Loads

799

(1)

Error Codes

799

(1)

Chapter Summary

800

(1)

Exercises

801

(1)

Advanced Exercises

801

(2)

PART VI Programming

803

(98)

27 Programming Tools

805

(46)

Programming in C

805

(8)

Checking Your Compiler

806

(1)

A C Programming Example

807

(3)

Compiling and Linking a C Program

810

(3)

Using Shared Libraries

813

(3)

Fixing Broken Binaries

815

(1)

Creating Shared Libraries

816

(1)

make: Keeps a Set of Programs Current

816

(7)

Implied Dependencies

818

(3)

Macros

821

(2)

Debugging C Programs

823

(10)

gcc: Compiler Warning Options Find Errors in Programs

826

(2)

Symbolic Debugger

828

(5)

Threads

833

(1)

System Calls

834

(2)

strace: Traces System Calls

834

(1)

Controlling Processes

835

(1)

Accessing the Filesystem

835

(1)

Source Code Management

836

(10)

CVS: Concurrent Versions System

837

(9)

Chapter Summary

846

(1)

Exercises

847

(1)

Advanced Exercises

848

(3)

28 Programming the Bourne Again Shell

851

(50)

Control Structures

852

(32)

if...then

852

(4)

if...then...else

856

(2)

if...then...elif

858

(6)

for...in

864

(2)

for

866

(2)

while

868

(4)

until

872

(2)

break and continue

874

(1)

case

874

(7)

select

881

(1)

Here Document

882

(2)

Expanding Null or Unset Variables

884

(2)

:- Uses a Default Value

885

(1)

:= Assigns a Default Value

885

(1)

:? Displays an Error Message

886

(1)

String Pattern Matching

886

(1)

Filename Generation

887

(1)

Builtins

887

(7)

exec: Executes a Command

887

(2)

trap: Catches a Signal

889

(3)

A Partial List of Builtins

892

(2)

Functions

894

(2)

Chapter Summary

896

(1)

Exercises

897

(2)

Advanced Exercises

899

(2)

PART VII Appendixes

901

(54)

A Regular Expressions

903

(10)

Characters

903

(1)

Delimiters

904

(1)

Simple Strings

904

(1)

Special Characters

904

(3)

Periods

904

(1)

Brackets

905

(1)

Asterisks

906

(1)

Carets and Dollar Signs

906

(1)

Quoting Special Characters

907

(1)

Rules

907

(1)

Longest Match Possible

907

(1)

Empty Regular Expressions

908

(1)

Bracketing Expressions

908

(1)

The Replacement String

908

(1)

Ampersand

909

(1)

Quoted Digit

909

(1)

Extended Regular Expressions

909

(2)

Appendix Summary

911

(2)

B Help

913

(8)

Solving a Problem

913

(1)

Finding Linux-Related Information

914

(6)

Documentation

915

(1)

Useful Linux Sites

916

(1)

Linux Newsgroups

917

(1)

Mailing Lists

917

(1)

Words

917

(1)

Software

918

(1)

Office Suites and Word Processors

919

(1)

Specifying a Terminal

920

(1)

C Security

921

(22)

Encryption

922

(5)

Public Key Encryption

923

(1)

Symmetric Key Encryption

924

(1)

Encryption Implementation

925

(1)

GnuPG/PGP

926

(1)

File Security

927

(1)

Email Security

927

(1)

MTAs (Mail Transfer Agents)

928

(1)

MUAs (Mail User Agents)

928

(1)

Network Security

928

(3)

Network Security Solutions

929

(1)

Network Security Guidelines

930

(1)

Host Security

931

(5)

932

(1)

Remote Access Security

933

(1)

Viruses and Worms

934

(1)

Physical Security

935

(1)

Security Resources

936

(4)

Appendix Summary

940

(3)

D The Free Software Definition

943

(4)

E The Linux 2.6 Kernel

947

(8)

Native Posix Thread Library (NPTL)

947

(1)

IPSecurity (IPSec)

948

(1)

Asynchronous I/O (AIO)

948

(1)

O(1) Scheduler

949

(1)

OProfile

949

(1)

kksymoops

949

(1)

Reverse Map Virtual Memory (rmap VM)

950

(1)

HugeTLBFS (Translation Look-Aside Buffer File System)

950

(1)

Remap_file_pages

950

(1)

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

951

(1)

Internet Protocol Virtual Server (IPVS)

951

(1)

Access Control Lists (ACLs)

951

(1)

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

951

(1)

Scheduler Support for HyperThreaded CPUs

952

(1)

Block I/O (BIO) Block Layer

952

(1)

Support for > 2TB Filesystem

952

(1)

New I/O Elevators

953

(1)

Interactive Scheduler Response Tuning

953

(2)

Glossary

955

(54)

Index

1009

Mark G. Sobell is president of Sobell Associates Inc.

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