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More Simple, clear explanations walk you through every technology Detailed explanations walk you through the technology.

DISCOVER HOW THE INTERNET REALLY WORKS... IT'S AMAZINGLY EASY!

This new edition has been completely updated for today's hottest Internet technologies, Web connections, hardware, communications and entertainment services, and much more!

See how the Internet can deliver any kind of information, anywhere: web pages, email, music, video, phone calls, and more!

Discover how your connection to the Internet works... wireless, cable modem, DSL, even cellphones

Go behind the scenes with today's most sophisticated websites, applications, and services

Protect yourself from the latest Internet dangers, including phishing, web surveillance, and wireless hacking

Preston Gralla is the award-winning author of more than 30 books, including How the Internet Works, Complete Idiot's Guide to Internet Privacy and Security, Complete Idiot's Guide to Protecting Your Child Online, and How Wireless Works. He has written

frequently about security issues, computer technology, the Internet, and has been a columnist for many magazines, websites

and newspapers.

Copyright

About The Author

Acknowledgments

We Want to Hear from You!

Reader Services

Introduction

Part 1: Understanding the Internet's Underlying Architecture

Chapter 1. What Is the Internet?

How the Internet Comes Together

An Internet Timeline

Chapter 2. How Computer Networks Send Data Across the Internet

How Networks Talk with Each Other

How Networks Link to the Internet

Chapter 3. How TCP/IP Works

How the Internet's Basic TCP/IP Protocols Work

How IPv6 Works

Chapter 4. Understanding the Internet's Software Structure

How Client/Server Architecture Works

Chapter 5. How Internet Addresses and Domains Work

Understanding Internet Addresses and Domains

How Domain Name System Servers Work

How Static and Dynamic IP Addresses Work

How Network Address Translation Works

Chapter 6. How Routers Work

How Routers Send Data to Their Destination

Part 2: Connecting to the Internet

Chapter 7. How Computers Connect to the Internet

How America Online Connects to the Internet

Connecting Your Computer to the Internet

How a Modem Makes Its Connection

How DSL Makes Its High-Speed Connection

Chapter 8. How Internet/Television Connections Work

How Cable Modems Work

How Internet-Enhanced TV Works

How IPTV Works

Chapter 9. How Wireless Connections and WiFI Work

How to Access the Internet via a Satellite Connection

How Cell Phones Access the Internet

How Bluetooth Works

How Wireless (WiFi) Networks Work

How Public Wireless Hot Spots Work

How WiMax Works

Chapter 10. How Home Networks Work

How Home Networks Let You Share Your Internet Connection

How a Wireless Media and Music Server Works

Part 3: Communicating on the Internet

Chapter 11. How Email Works

How Email Is Delivered Over the Internet

How Email Software Works

How a Mailing List Works

How Email Is Sent Between Networks

How BlackBerries Deliver Email

How White Page Directories (LDAP) Work

How Encryption Can Keep Email Private

Chapter 12. How Email Spam Works

How Email Spam Is Sent

How Email Spam Is Blocked

Chapter 13. How Newsgroups Work

How Usenet Works

Chapter 14. How Internet Chat and Instant Messaging Work

How IRC Works

How Instant Messaging Works

How Chat Rooms Throw a Party

Chapter 15. How Skype and VoIP Work

How VoIP (Voice over Internet Protocol) Works

How Skype Works

How RSS Works

Part 4: How the World Wide Web Works

Chapter 17. How Web Pages Work

How the World Wide Web Works

How Web Pages Are Organized on a Website

How Websites Are Constructed

Chapter 18. How Web Browsers Work

How a Web Browser Works

What Common Browser Error Messages Mean

Chapter 19. How Markup Languages Work

How HTML Works

How Dynamic HTML Works

How XML Works

How AJAX Works

Chapter 20. How Hypertext Works

How Hyperlinks Work

Chapter 21. How URLs Work

How URLs Are Structured

How URLs Help Retrieve Web Documents

Chapter 22. How Image Maps and Interactive Forms Work

How Image Maps Work

How Interactive Forms Work

Chapter 23. How Web Host Servers Work

How Web Server Software Works

Chapter 24. How Websites Work with Databases

How the Web Works with Databases

Chapter 25. How .NET and Web Services Work

Understanding .NET and Web Services

Chapter 26. How Grid Computing Works

Understanding How Grid Computing Works

Part 5: Using the World Wide Web

Chapter 27. How Internet Searching Works

How Internet Search Engines Work

How Meta-Search Software Works

Chapter 28. How Google Works

How Google Searches the Internet

What Google Knows About You

Chapter 29. How Map Sites Work

How Map Sites Work

How Google Earth Works

Chapter 30. How Wikis and the Wikipedia Work

How the Wikipedia Works

Part 6: Using Common Internet Tools

Chapter 31. How Telnet Works

Understanding Telnet

Chapter 32. How FTP Works

How an FTP Session Works

How File Compression Works

Chapter 33. How Agents Work

Agents on the Internet

Chapter 34. How Java, ActiveX, and JavaScript Work

How Java Works

How ActiveX Works

How JavaScript Works

Chapter 35. How CGI Scripting Works

Understanding CGI Scripting

Part 7: Enjoying Entertainment and Multimedia on the Internet

Chapter 36. How Music and Audio Work on the Internet

How RealPlayer Streaming Audio Works

How MP3 Music Files Work

How Internet Radio Broadcasting Works

Chapter 37. How iPods, iTunes, and Podcasting Work

How iPods Work

How iTunes Works

How Podcasting Works

Chapter 38. How Music Sharing and File Sharing Work

How Peer-to-Peer Software Shares Files and Music

How BitTorrent Works

Chapter 39. How Multicast IP and the MBone Work

How Multicast IP Travels Along the MBone

Chapter 40. How Virtual Reality Is Created by VRML

How Virtual Reality Is Created by VRML

Chapter 41. How Animation on the Web Works

How Client Pull and Server Push Animation Work

How Shockwave Works

How Flash Works

Part 8: Shopping and Doing Business on the Internet

Chapter 42. How Intranets Work

Using an Intranet Within a Company

How Virtual Private Networks (VPNs) Work

Chapter 43. Shopping on the Internet

How Online Buying Works

How Online Shopping Carts Work

How eBay Sells Everything

Part 9: Protecting Yourself on the Internet

Chapter 44. How Firewalls Work

How Corporate Firewalls Work

How Personal Firewalls Work

How Proxy Servers Work

Chapter 45. How Hackers Can Cripple the Internet and Attack Your PC

How Smurf Attacks and DOS Attacks Work

How Hackers Can Attack Your Computer

How Email Viruses Travel in Your Email

How Zombies and Bot Networks Work

How Hackers Exploit Browsers

Chapter 46. The Dangers of Wireless Networking

How War Drivers Invade Your Network

How "Evil Twin" Hacks Work

How Paris Hilton's Cell Phone Was Hacked

How Wireless Network Protection Works

Chapter 47. How Viruses Work

How Viruses Infect Computers

How Worms Work

Chapter 48. How Internet Sites Can Invade Your Privacy

How Cookies Work

How Websites Track Your Activities

How Web Bugs Can Invade Your Privacy

How Internet Passports Work

Chapter 49. The Dangers of Spyware and Phishing

How Spyware Works

Following the Spyware Money Trail

How Phishing Works

Following the Phishing Money Trail

How to Protect Against Spyware

Chapter 50. Cryptography, Privacy, and Digital Certificates

How Cryptosystems Work

How Digital Certificates Ensure Internet Security

Chapter 51. How Government and Workplace Surveillance Work

How the National Security Agency's Echelon Spy System Works

How the FBI's Carnivore System Invaded Your Privacy

How Internet Workplace Surveillance Works

Chapter 52. Parental Controls on the Internet

How Parental Controls Work

Glossary

Index

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