Wiley Linux All-In-One Desk Reference for DUMmIES 3rd.pdf

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Linux ®
ALL-IN-ONE DESK REFERENCE
FOR
DUMmIES
‰
3 RD EDITION
by Emmett Dulaney and
Naba Barkakati
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Linux All-in-One Desk Reference For Dummies ® , 3rd Edition
Published by
Wiley Publishing, Inc.
111 River Street
Hoboken, NJ 07030-5774
www.wiley.com
Copyright © 2008 by Wiley Publishing, Inc., Indianapolis, Indiana
Published by Wiley Publishing, Inc., Indianapolis, Indiana
Published simultaneously in Canada
No part of this publication may be reproduced, stored in a retrieval system or transmitted in any form or
by any means, electronic, mechanical, photocopying, recording, scanning or otherwise, except as permit-
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Trademarks: Wiley, the Wiley Publishing logo, For Dummies, the Dummies Man logo, A Reference for the
Rest of Us!, The Dummies Way, Dummies Daily, The Fun and Easy Way, Dummies.com, and related trade
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Library of Congress Control Number: 2008929128
ISBN: 978-0-470-27535-1
Manufactured in the United States of America
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Contents at a Glance
Introduction .................................................................1
Book I: Linux Basics .....................................................7
Chapter 1: Introducing Linux ............................................................................................9
Chapter 2: Installing Linux ..............................................................................................31
Chapter 3: Troubleshooting and Configuring Linux ....................................................41
Chapter 4: Trying Out Linux ...........................................................................................61
Book II: Linux Desktops...............................................71
Chapter 1: The GNOME Desktop ....................................................................................73
Chapter 2: The KDE Desktop...........................................................................................83
Chapter 3: Commanding the Shell..................................................................................93
Chapter 4: Navigating the Linux File System ..............................................................115
Chapter 5: Introducing Linux Applications .................................................................139
Chapter 6: Using Text Editors .......................................................................................157
Book III: Networking ...............................................169
Chapter 1: Connecting to the Internet .........................................................................171
Chapter 2: Setting Up a Local Area Network...............................................................191
Chapter 3: Going Wireless .............................................................................................203
Chapter 4: Managing the Network................................................................................213
Book IV: Internet ......................................................227
Chapter 1: E-Mailing and IMing in Linux......................................................................229
Chapter 2: Browsing the Web........................................................................................245
Chapter 3: Reading Newsgroups and RSS Feeds ........................................................257
Chapter 4: Using FTP......................................................................................................273
Book V: Administration .............................................283
Chapter 1: Introducing Basic System Administration ...............................................285
Chapter 2: Managing Users and Groups ......................................................................325
Chapter 3: Managing File Systems................................................................................335
Chapter 4: Installing and Updating Applications........................................................359
Book VI: Security......................................................381
Chapter 1: Introducing Linux Security.........................................................................383
Chapter 2: Securing Linux .............................................................................................399
Chapter 3: Performing Computer Security Audits .....................................................429
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Book VII: Linux Servers .............................................445
Chapter 1: Managing Internet Services........................................................................447
Chapter 2: Managing Mail and News Servers .............................................................465
Chapter 3: Managing DNS ..............................................................................................487
Chapter 4: Working with Samba and NFS ....................................................................507
Book VIII: Programming............................................517
Chapter 1: Programming in Linux ................................................................................519
Chapter 2: Introductory Shell Scripting ......................................................................545
Chapter 3: Advanced Shell Scripting ...........................................................................557
Appendix: About the DVD ..........................................565
Index .......................................................................583
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Table of Contents
Introduction ..................................................................1
About This Book...............................................................................................2
Conventions Used in This Book .....................................................................3
What You Don’t Have to Read ........................................................................3
Who Are You? ...................................................................................................3
How This Book Is Organized...........................................................................4
What’s on the DVD? .........................................................................................5
Icons Used in This Book..................................................................................5
Where to Go from Here....................................................................................6
Book I: Linux Basics ......................................................7
Chapter 1: Introducing Linux . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
What Is Linux? ..................................................................................................9
Linux distributions ...............................................................................11
Making sense of version numbers......................................................14
Linux Standard Base (LSB)..................................................................15
What a Linux Distribution Includes .............................................................16
GNU software ........................................................................................16
GUIs and applications ..........................................................................20
Networks ...............................................................................................21
Internet servers ....................................................................................22
Software development .........................................................................22
Online documentation .........................................................................24
What Linux Helps You Manage .....................................................................25
Disks, CD-ROMs, and DVD-ROMs .......................................................25
Peripheral devices................................................................................26
File systems and sharing .....................................................................27
Network .................................................................................................27
Getting Started ...............................................................................................28
Install......................................................................................................28
Configure ...............................................................................................28
Explore...................................................................................................29
Find out more........................................................................................29
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