THE WHATIS.COM WORD-OF-THE-DAY December 22, 2003 Faraday cage
______________________ SPONSORED BY: IBM How do you build reliable apps as fast as you need them? Start with a high-volume, highly secure foundation. Then, use the best tools to build, test, and deploy your applications. Middleware like IBM WebSphere Application Server can help. It provides both the rock-solid foundation and the tools to develop applications for it. See how. Read the white paper on WebSphere Application Server V5 today. http://www.ibm.com/websphere/news/ftwp ______________________ TODAY'S WORD: Faraday cage See our complete definition with hyperlinks at http://searchsecurity.techtarget.com/sDefinition/0,,sid14_gci942282,00.html?track=NL-34 A Faraday cage is a metallic enclosure that prevents the entry or escape of an electromagnetic field (EM field). An ideal Faraday cage consists of an unbroken, perfectly conducting shell. This ideal cannot be achieved in practice, but can be approached by using fine-mesh copper screening. For best performance, the cage should be directly connected to an earth ground. Faraday cages are used in electronic labs where stray EM fields must be kept out. This is important in the testing of sensitive wireless receiving equipment. In addition, a Faraday cage can prevent the escape of the EM fields emitted by a cathode-ray-tube (CRT) computer monitor. Such fields can be intercepted and translated to allow hackers to remotely view on-screen data in real time without the need for wires, cables, or cameras. This practice, known as van Eck phreaking, can also be used by government officials to view the computer activities of known criminals and certain criminal suspects. A heavy-duty Faraday cage can protect against direct lightning strikes. When properly connected to an earth ground, the cage conducts the high current harmlessly to ground, and keeps the EM pulse from affecting personnel or hardware inside. __________________________ RELATED TERMS: electromagnetic field http://whatis.techtarget.com/definition/0,,sid9_gci212055,00.html?track=NL-34 ground http://whatis.techtarget.com/definition/0,,sid9_gci861575,00.html?track=NL-34 CRT http://whatis.techtarget.com/definition/0,,sid9_gci213839,00.html?track=NL-34 monitor http://whatis.techtarget.com/definition/0,,sid9_gci212588,00.html?track=NL-34 van Eck phreaking http://searchsecurity.techtarget.com/sDefinition/0,,sid14_gci550525,00.html?track=NL-34 ______________________ SELECTED LINKS: BOLT describes how to build an elemental Faraday cage. http://www.boltlightningprotection.com/Elemental_Faraday_Cage.htm ______________________ TODAY'S TECH NEWS: ENTERPRISES PLAY WAITING GAME ON 2.6 Red Hat and SuSE won't have 2.6-based versions of enterprise Linux until mid-to-late 2004, and that's fine for enterprises that need stable, ISV-certified, mission-critical operating systems. http://searchenterpriselinux.techtarget.com/originalContent/0,289142,sid39_gci942316,00.html?track=NL-34 ORACLE STAYS HOT ON PEOPLESOFT'S HEELS It has once again extended the takeover deadline, giving antitrust authorities more time to weigh in. http://searchcrm.techtarget.com/originalContent/0,289142,sid11_gci942296,00.html?track=NL-34 SOBER-C WORM SPEAKS GERMAN A variant of the Sober worm appeared on Saturday and is making progress in German-speaking countries. The worm is not destructive, but administrators are warned to take precautions. http://searchsecurity.techtarget.com/originalContent/0,289142,sid14_gci942306,00.html?track=NL-34 >> Catch up on all the latest IT news at http://searchtechtarget.techtarget.com?track=NL-34 ______________________ CAN I QUOTE YOU ON THAT? | The top IT quotes of 2003 They range from pithy and provocative to positive, petty and predictable. They're some of the most notable quotables from IT in 2003. From Linus Torvalds ripping into SCO, to a Microsoft manager's surprisingly "kind words" for open source, to a noted Windows expert's declaration of IT's biggest problem -- they said it all in 2003. http://www.searchCIO.com/originalContent/0,289142,sid19_gci941875,00.html?track=NL-34 ______________________ SECRET WORD-OF-THE-DAY | What is IT? Sounds like a bunch of bees trying to sell stuff? It's a new viral marketing technique that attempts to make each encounter with a consumer appear to be a unique, spontaneous personal exchange of information. Do you think you know the Secret Word? Click this URL and see if you're right! http://searchcrm.techtarget.com/gDefinition/0,294236,sid11_gci939341,00.html?track=NL-34 _____________________ BAH HUMBUG | Ebeneezer Scrooge IT test If you're a geek who's more inclined to have visions of HTML code, rather than sugarplums, dancing through your head, we've got a quiz for you! Take a chance, and win a prize! http://whatis.techtarget.com/definition/0,,sid9_gci940610,00.html?track=NL-34 ______________________________ RECENT ADDITIONS AND UPDATES [1] Fast Guide to IT Humor http://whatis.techtarget.com/definition/0,,sid9_gci942103,00.html?track=NL-34 [2] churn rate http://searchcrm.techtarget.com/sDefinition/0,,sid11_gci940457,00.html?track=NL-34 [3] unary http://whatis.techtarget.com/definition/0,,sid9_gci940292,00.html?track=NL-34 [4] Ethernet/IP http://searchnetworking.techtarget.com/sDefinition/0,,sid7_gci940057,00.html?track=NL-34 [5] SNAFU http://whatis.techtarget.com/definition/0,,sid9_gci940056,00.html?track=NL-34 ____________________________________________________________________ ::::::::::::::::::: WHATIS.COM CONTACTS ::::::::::::::::::: MARGARET ROUSE, Site Editor ([EMAIL PROTECTED]) IVY WIGMORE, Consulting Editor ([EMAIL PROTECTED]) LOWELL THING, Consulting Editor and Founder ([EMAIL PROTECTED]) GABRIELLE DERUSSY, Advertising ([EMAIL PROTECTED]) ::::::::::::::::::::: ABOUT THIS NEWSLETTER :::::::::::::::::::::: This newsletter is published by TechTarget, the most targeted IT media. http://www.techtarget.com?track=NL-34 Copyright 2003 TechTarget. 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