Reference Guide 71Dictionaries of Computer TerminologyOther Web Siteswww.howstuffworks.comSimple explanations of how all kinds of things, including system and network components,work.www.zebra.org/zebra/index.htmlOnline gnu zebra configuration document for Firebox users using dynamic routing protocols.www.watchguard.com/support/advancedfaqs/log_sniffing.aspCheck here for information on a useful Network Packet Analyzer.www.iana.orgLook here for lists of protocol number assignments and TCP and UDP port numbers.www.telusplanet.com/public/sparkman/netcalc.htmA network calculator.www.winguides.com/registry/A good site for information about the Windows registry.www.watchguard.com/glossary/?nav=icOnline glossary of security terms.vmyths.comSome viruses you hear about are not real. Though each of virus vendor has a “virux hoax” page,when we have to prove to a hysterical user that a problem doesn’t really exist, we like the write-ups here.slashdot.orgFor fun, no self-respecting geek should miss viewing science, pop culture, and the world ofcomputers through the perspective of the IT-minded community (millions strong!) whocontribute to Slashdot.Dictionaries of Computer Terminologywww.webopedia.comwww.whatis.cominfo.astrian.net.jargon/www.techweb.com/encylopedia/