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.Much work still needs to be done.The newer 802.11 variants, such as 802.11a and the forthcoming 802.11g,attempt to address the shortcomings of 802.11b, providing improvedbandwidth and security fixes.These changes will take time to mature, andwill likely initially have some problems as well.However, security expertsnow are much more interested in the investigation of security problems in802.11, so problems should be examined much more deeply.The 802.11 family of protocols will continue to grow rapidly in bothindustry and the consumer market.It provides convenience for users and is affordable.Anyone who has worked from a wireless laptop understands howmuch less of a hassle it is compared to dealing with network cables strungall over.Another strong driving force of the advancement of wireless technology ishow hackable, in the good meaning of the word, 802.11 devices are.Manygroups have sprung up that are attempting to use this equipment in novelways.Some notable examples are the creation of mesh networks out ofclusters of access points, loading Linux onto off the shelf access points toextend their functionality and the development of software like HostAP,which extends the capabilities of the hardware beyond the manufacturersintentions.Unfortunately, wireless networks are also very hackable, in the bad meaningof the word.War drivers seek out vulnerable systems for exploitation fromthe wireless side, while all the usual suspects on the Internet probe thenetwork from the other side.This increased risk and all the security issuesdiscovered in 802.11 during 2001 created a media flurry of negative articlesabout wireless security.But, it seems, at least from our personal experience,that the benefits far outweigh the risks in most peoples minds.Many peoplerealize there are security dangers and choose to set up a wireless networkanyways since the convenience is worth much more to them than thepossible compromises they might suffer.In this book, we have presented a basic, practical approach to building smalland medium sized wireless networks.Follow the instructions in this book,read the web sites of vendors and community wireless networks to learnabout new threats and protections, and keep your software and drivers up todate. ColophonOur look is the result of reader comments, our own experimentation, andfeedback from distribution channels.Distinctive covers complement ourdistinctive approach to technical topics, breathing personality and life intopotentially dry subjects.The animal on the cover of 802.11 Security is an Indian ringnecked parakeet.Indian ringnecked parakeets are native to northern Africa and India, but arekept as pets all over the world.They get their name from the distinct blackring that males develop upon reaching maturity.Though Indian ringnecked parakeets are usually green, breeders have beenable to produce blue, yellow, and albino mutations.Their beaks are darkcoral on top and black underneath.The birds can reach between 16 and 20inches from the top of their heads to the tips of their long tails.These parakeets are very playful and require a lot of attention when kept incaptivity.They can learn to talk and are talented whistlers.When treatedwell and kept active, they can live up to 30 years.Darren Kelly was the production editor, Maureen Dempsey was thecopyeditor, and Jan Fehler was the proofreader for 802.11 Security.NancyCrumpton provided production services and wrote the index.Linley Dolbyand Claire Cloutier provided quality control.Emma Colby designed the cover of this book, based on a series design byEdie Freedman.The cover image is a 19th-century engraving from theDover Pictorial Archive.Emma Colby produced the cover layout withQuarkXPress 4.1 using Adobe's ITC Garamond font.David Futato designed the interior layout.This book was converted toFrameMaker 5.5.6 with a format conversion tool created by Erik Ray, JasonMcIntosh, Neil Walls, and Mike Sierra that uses Perl and XMLtechnologies.The text font is Linotype Birka; the heading font is AdobeMyriad Condensed; and the code font is LucasFont's TheSans MonoCondensed.The illustrations that appear in the book were produced byRobert Romano and Jessamyn Read using Macromedia FreeHand 9 andAdobe Photoshop 6.The tip and warning icons were drawn by ChristopherBing.Linley Dolby wrote the colophon. The online edition of this book was created by the Safari production group(John Chodacki, Becki Maisch, and Madeleine Newell) using a set ofFrame-to-XML conversion and cleanup tools written and maintained by ErikRay, Benn Salter, John Chodacki, and Jeff Liggett
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