Internet User’s Guide

The path to ...GB757

Internet User's Guide 2

Objectives

Understand the Internet architecture Understand Internet Services Understand Internet Clients Note key Internet locations Note special corporate considerations

Internet User's Guide 3

Why?

Huge Impact Technology Impacts all sides

Reduces costsIncreases RevenueAlmost Magic

Great EqualizerLittle is BigBig is Little

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The Hype

Overestimated in short run

Underestimated in long run

Time2005

W orldPopulation

InternetUsers

Internet User's Guide 5

The Problem

Your Here Your Information is here(and in different formats and

types of devices)

Internet User's Guide 6

The Basics

Network Protocol TCP/IPData Packets; bits are bits

Meaningful addresses?? URLprotocol://site:port/file&args...DNS

Stateless Client/Server Application Protocols (Simple)N = Complex

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The Basic Problems

PrivacySpoofing locations,

namesAltering ContentListeningLegal AmbiguitiesFinancial

Considerations

Response Time Not Predictable Sheer Chaos

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The Major Services

HTTP (The Web) SMTP/POP (Email) NNTP (News Groups) FTP (File Transfers) Telnet (Remote Logins) List Server (Broadcast Groups)

ProprietaryReal Audio ICQLots of others

Well Known Port

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The Major Service Sites (HTML)

Search EnginesThe crossroads of the

WebTwo types: Catalog &

Keyword• Even the best only

references 30%Boolean criteria & “ “Sites, people, &

locations ...

Businesses News Jobs Academics Radio stations Personalization Sites And on and on and on

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The Major Client: The Browser

Two Choices Basic Operations

Stop, Print, Save(what’s is missing)

BookmarksDownloads and

compressed files Embellishments

JavaPlug ins

Session ManagementCookiesSSLURL/Hidden HTML

SecuritySSLSHTTP

Push???

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The Other Major Client: Email

SMTP POP3 MIME Address Book

Individuals & Groups Filters

SPAM Threads Limitations

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The Minor Clients

FTP Telnet News Up and coming

ICQReal AudioNetMeetingPointCast

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The Corporate Internet User

Firewalls Proxies Monitoring Archiving

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Summary

Its Complex but SimplePrincipals won’t changeTactics will undergo major changeGet going…up the learning curve

Still EvolvingBe carefulBe watchfulBe excited