Lecture 6 - COP 4910 Frontiers in Information Technology...

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1 COP 4910 Frontiers in Information Technology Lecture 6 Domains Hal Stringer
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2 Today’s Agenda Turn in first Mini-Report Next MR due Tuesday of Next Week What about the other MRs Domains Topic for Next Tuesday’s Lecture?
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3 Mini-Report Overview Information Posted on Website Background Information Technology Overview Business Issues Technical Details Implementation Issues Questions?
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4 What is a Domain? Per www.dictionary.com A territory over which rule or control is exercised. A sphere of activity, concern, or function; a field: the domain of history. Computer Science . A group of networked computers that share a common communications address. Two common “domains” in IT: Domain Name for internet navigation Windows Domain for LAN or WAN networking
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5 Internet Domain Names All computers connected to the Internet have a unique IP address. Used by TCP/IP protocols to route packets IP addresses are difficult to remember DNS or Domain Name System developed to provide mapping between alphanumeric mnemonic names and IP addresses. Real time mapping of names to IP addresses is called “name resolution” Internet Corporation for Assigned Names and Numbers (ICANN) administers domain names and IP addresses to insure universal resolvability.
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6 Domain Name System All names form a hierarchy Top Level Domains (org, .com, .info, .us, etc.) 2 nd Level Domain Name (abcwidget, cnn, msnbc, etc.)
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