spine=1.2960” Operating Systems/Linux Ubuntu, Fedora, ™ and more 4th Edition New to Linux? Get started now — on DVD! Making Everything Easier! this handy how-to guide 4th Edition makes learning Linux easy! Open the book and find: No doubt about it, Linux is cool — and free! You can use it ® • Help navigating the GNOME® to set up a Web server or rejuvenate an old computer. Or use and KDE® desktops Linux Linux as your desktop OS along with great applications such as OpenOffice.org. This ready reference gives you everything • Linux troubleshooting tips you need to know about installing, configuring, and using • How to set up a LAN ALL-IN-ONE Linux, while the DVD gives you five Linux flavors to sample. • Secrets of using Linux to send Linux ALL-IN-ONE • It’s a do-it-yourself thing — learn the essentials of installing and instant messages and e-mail using Linux by checking out Books I and II • System administration basics • All about access — connect to the Internet, configure and manage • Advice on securing Linux TCP/IP networks, and set up e-mail, newsgroups, and Web surfing • Administrative stuff — manage user accounts, install • How to run mail, news, and applications, work with peripherals, and upgrade or customize FTP servers ® the Linux kernel • All about shell scripting • Safety first — secure the network and the host, and perform regular security audits • Serve it up — configure an Apache Web server, set up an FTP server or a Windows® server, and explore Linux programming Bonus DVD Includes BOOKS ISO image files for five major Linux distributions you IN can try: Ubuntu Desktop, OpenSUSE, Mint 8, Fedora 12, Go to Dummies.com® and Mandriva Linux 2010 for videos, step-by-step examples, 8 how-to articles, or to shop! Complete instructions for installing and using each distribution • Linux Basics1 Please see the DVD appendix for complete system requirements. • Linux Desktops • Networking • The Internet • Administration • Security $39.99 US / $47.99 CN / £27.99 UK • Linux Servers • Programming Emmett Dulaney has written more than 30 technology books, among ISBN 978-0-470-77019-1 them the popular CompTIA Security+ Study Guide. He is an instructor at Anderson University in Anderson, Indiana, and is the former director of training for Mercury Technical Solutions. Dulaney Emmett Dulaney spine=1.2960” Get More and Do More at Dummies.com® Start with FREE Cheat Sheets Cheat Sheets include • Checklists • Charts • Common Instructions • And Other Good Stuff! Mobile Apps To access the Cheat Sheet created specifically for this book, go to www.dummies.com/cheatsheet/linuxaio Get Smart at Dummies.com Dummies.com makes your life easier with 1,000s of answers on everything from removing wallpaper to using the latest version of Windows. Check out our • Videos • Illustrated Articles There’s a Dummies App for This and That • Step-by-Step Instructions With more than 200 million books in print and over 1,600 unique Plus, each month you can win valuable prizes by entering titles, Dummies is a global leader in how-to information. Now our Dummies.com sweepstakes. * you can get the same great Dummies information in an App. With Want a weekly dose of Dummies? Sign up for Newsletters on topics such as Wine, Spanish, Digital Photography, Certification, • Digital Photography and more, you’ll have instant access to the topics you need to • Microsoft Windows & Office know in a format you can trust. • Personal Finance & Investing • Health & Wellness To get information on all our Dummies apps, visit the following: • Computing, iPods & Cell Phones www.Dummies.com/go/mobile from your computer. • eBay • Internet www.Dummies.com/go/iphone/apps from your phone. • Food, Home & Garden Find out “HOW” at Dummies.com *Sweepstakes not currently available in all countries; visit Dummies.com for official rules. Linux® ALL-IN-ONE FOR DUMmIES‰ 4TH EDITION 01_770191-ffirs.indd i 8/6/10 9:42 AM 01_770191-ffirs.indd ii 8/6/10 9:42 AM Linux® ALL-IN-ONE FOR DUMmIES‰ 4TH EDITION by Emmett Dulaney 01_770191-ffirs.indd iii 8/6/10 9:42 AM Linux® All-in-One For Dummies®, 4th Edition Published by Wiley Publishing, Inc. 111 River Street Hoboken, NJ 07030-5774 www.wiley.com Copyright © 2010 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- ted under Sections 107 or 108 of the 1976 United States Copyright Act, without either the prior written permission of the Publisher, or authorization through payment of the appropriate per-copy fee to the Copyright Clearance Center, 222 Rosewood Drive, Danvers, MA 01923, (978) 750-8400, fax (978) 646-8600. Requests to the Publisher for permission should be addressed to the Permissions Department, John Wiley & Sons, Inc., 111 River Street, Hoboken, NJ 07030, (201) 748-6011, fax (201) 748-6008, or online at http:// www.wiley.com/go/permissions. 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, Making Everything Easier, and related trade dress are trademarks or registered trademarks of John Wiley & Sons, Inc. and/ or its affi liates in the United States and other countries, and may not be used without written permission. Linux is a registered trademark of Linus Torvalds. All other trademarks are the property of their respec- tive owners. Wiley Publishing, Inc. is not associated with any product or vendor mentioned in this book. LIMIT OF LIABILITY/DISCLAIMER OF WARRANTY: THE PUBLISHER AND THE AUTHOR MAKE NO REPRESENTATIONS OR WARRANTIES WITH RESPECT TO THE ACCURACY OR COMPLETENESS OF THE CONTENTS OF THIS WORK AND SPECIFICALLY DISCLAIM ALL WARRANTIES, INCLUDING WITH- OUT LIMITATION WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE. NO WARRANTY MAY BE CREATED OR EXTENDED BY SALES OR PROMOTIONAL MATERIALS. THE ADVICE AND STRATEGIES CONTAINED HEREIN MAY NOT BE SUITABLE FOR EVERY SITUATION. THIS WORK IS SOLD WITH THE UNDERSTANDING THAT THE PUBLISHER IS NOT ENGAGED IN RENDERING LEGAL, ACCOUNTING, OR OTHER PROFESSIONAL SERVICES. IF PROFESSIONAL ASSISTANCE IS REQUIRED, THE SERVICES OF A COMPETENT PROFESSIONAL PERSON SHOULD BE SOUGHT. NEITHER THE PUBLISHER NOR THE AUTHOR SHALL BE LIABLE FOR DAMAGES ARISING HEREFROM. THE FACT THAT AN ORGANIZA- TION OR WEBSITE IS REFERRED TO IN THIS WORK AS A CITATION AND/OR A POTENTIAL SOURCE OF FURTHER INFORMATION DOES NOT MEAN THAT THE AUTHOR OR THE PUBLISHER ENDORSES THE INFORMATION THE ORGANIZATION OR WEBSITE MAY PROVIDE OR RECOMMENDATIONS IT MAY MAKE. FURTHER, READERS SHOULD BE AWARE THAT INTERNET WEBSITES LISTED IN THIS WORK MAY HAVE CHANGED OR DISAPPEARED BETWEEN WHEN THIS WORK WAS WRITTEN AND WHEN IT IS READ. FULFILLMENT OF EACH COUPON OFFER IS THE SOLE RESPONSIBILITY OF THE OFFEROR. For general information on our other products and services, please contact our Customer Care Department within the U.S. at 877-762-2974, outside the U.S. at 317-572-3993, or fax 317-572-4002. For technical support, please visit www.wiley.com/techsupport. Wiley also publishes its books in a variety of electronic formats. Some content that appears in print may not be available in electronic books. Library of Congress Control Number: 2010933460 ISBN: 978-0-470-77019-1 Manufactured in the United States of America 10 9 8 7 6 5 4 3 2 1 01_770191-ffirs.indd iv 8/6/10 9:42 AM Dedication For Karen, Kristin, Evan, and Spencer. 01_770191-ffirs.indd v 8/6/10 9:42 AM 01_770191-ffirs.indd vi 8/6/10 9:42 AM About the Author Emmett Dulaney is the author of several books on operating systems and certifi cations, and an assistant professor at Anderson University. Other books he has written include CompTIA A+ Complete Study Guide (Sybex) and Security + Study Guide (Sybex). Emmett is a columnist for CertCities and is a contributor to a number of other magazines. 01_770191-ffirs.indd vii 8/6/10 9:42 AM 01_770191-ffirs.indd viii 8/6/10 9:42 AM Author’s Acknowledgments I would like to thank Naba Barkakati, who wrote the fi rst two editions and did a fantastic job of condensing a wealth of information into a small tome. Equal thanks go to Graham Brown for his assistance in doing a similar task with the 4th edition of this book and never saw a task that couldn’t be tackled. I would also like to thank Elizabeth Zinkann for being one of the best techni- cal editors in the business and Susan Pink for keeping everything on track and on time. 01_770191-ffirs.indd ix 8/6/10 9:42 AM Publisher’s Acknowledgments We’re proud of this book; please send us your comments at http://dummies.custhelp.com. For other comments, please contact our Customer Care Department within the U.S. at 877-762-2974, outside the U.S. at 317-572-3993, or fax 317-572-4002. Some of the people who helped bring this book to market include the following: Acquisitions and Editorial Composition Services Project Editor: Susan Pink Project Coordinator: Sheree Montgomery (Previous Edition: Pat O’Brien) Layout and Graphics: Samantha Cherolis Acquisitions Editor: Kyle Looper Proofreaders: Melissa Cossell, Copy Editor: Susan Pink The Well-Chosen Word (Previous Edition: Jen Riggs) Indexer: Sherry Massey Technical Editor: Elizabeth Zinkann Editorial Manager: Jodi Jensen Editorial Assistant: Leslie Saxman Sr. Editorial Assistant: Cherie Case Cartoons: Rich Tennant (www.the5thwave.com) Publishing and Editorial for Technology Dummies Richard Swadley, Vice President and Executive Group Publisher Andy Cummings, Vice President and Publisher Mary Bednarek, Executive Acquisitions Director Mary C.