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TCP/IP in 24 Hours, Sams Teach Yourself, 6th Edition

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TCP/IP in 24 Hours, Sams Teach Yourself, 6th Edition

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About

Features

  • The easy, hands-on guide to building and running TCP/IP networks - now fully updated for the latest protocols, standards, and techniques
  • Thorough, practical, and approachable: packed with step-by-step instructions, examples, quizzes, exercises, and tips
  • Covers TCP/IP architecture, subnetting, CIDR, routing, security, encryption, utilities, services, streaming, remote access, monitoring, troubleshooting, and much more
  • Extensive new coverage includes IPv6, cloud environments, HTML5, and TCP/IP over wireless

Description

  • Copyright 2017
  • Dimensions: 7" x 9-1/8"
  • Pages: 544
  • Edition: 6th
  • Book
  • ISBN-10: 0-672-33789-4
  • ISBN-13: 978-0-672-33789-5

Sams Teach Yourself TCP/IP in 24 Hours, Sixth Edition is a practical guide to the simple yet illusive protocol system that powers the Internet. A step-by-step approach reveals how the protocols of the TCP/IP stack really work and explores the rich array of services available on the Internet today. You’ll learn about configuring and managing real-world networks, and you’ll gain the deep understanding you’ll need to troubleshoot new problems when they arise. Sams Teach Yourself TCP/IP in 24 Hours is the only single-volume introduction to TCP/IP that receives regular updates to incorporate new technologies of the ever-changing Internet. This latest edition includes up-to-date material on recent topics such as tracking and privacy, cloud computing, mobile networks, and the Internet of Things.


Each chapter also comes with:


Practical, hands-on examples, showing you how to apply what you learn
Quizzes and exercises that test your knowledge and stretch your skills
Notes and tips with shortcuts, solutions, and workarounds If you're looking for a smart, concise introduction to the TCP/IP protocols,start your clock and look inside.


Learn how to...

  • Understand TCP/IP’s role, how it works, and how it continues to evolve
  • Work with TCP/IP’s Network Access, Internet, Transport, and Application layers
  • Design modern networks that will scale and resist attack
  • Address security and privacy issues with encryption, digital signatures, VPNs, Kerberos, web tracking, cookies, anonymity networks, and firewalls
  • Discover how IPv6 differs from IPv4, and how to migrate or coexist with IPv6
  • Configure dynamic addressing, DHCP, NAT, and Zeroconf
  • Establish efficient and reliable routing, subnetting, and name resolution
  • Use TCP/IP in modern cloud-based environments
  • Integrate IoT devices into your TCP/IP network
  • Improve your efficiency with the latest TCP/IP tools and utilities
  • Support high-performance media streaming and webcasting
  • Troubleshoot problems with connectivity, protocols, name resolution, and performance
  • Walk through TCP/IP network implementation, from start to finish

Sample Content

Sample Pages

Download the sample pages (includes Chapter 2 and index)

Table of Contents

Part I: TCP/IP Basics 1
HOUR 1: What Is TCP/IP? 3
    Networks and Protocols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
    The Development of TCP/IP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
    TCP/IP Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
    Standards Organizations and RFCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
    Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
    Q&A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
    Workshop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
    Key Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
HOUR 2: How TCP/IP Works 19
    The TCP/IP Protocol System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
    TCP/IP and the OSI Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
    Data Packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
    A Quick Look at TCP/IP Networking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
    Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
    Q&A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
    Workshop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
    Key Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Part II: The TCP/IP Protocol System 31
HOUR 3: The Network Access Layer 33
    Protocols and Hardware. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
    The Network Access Layer and the OSI Model . . . . . . . . . . . . . . . . . . . . . . 34
    Network Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
    Physical Addressing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
    Ethernet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
    Anatomy of an Ethernet Frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
    Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
    Q&A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
    Workshop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
    Key Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
HOUR 4: The Internet Layer 45
    IP Addresses: A Little Context . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
    Addressing and Delivering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
    Internet Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
    Address Resolution Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
    Reverse ARP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
    Internet Control Message Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
    Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
    Q&A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
    Workshop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
    Key Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
HOUR 5: Subnetting and CIDR 69
    Subnets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
    Dividing the Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
    The Old Way: Subnet Mask . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
    The New Way: CIDR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
    Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
    Q&A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
    Workshop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
    Key Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
HOUR 6: The Transport Layer 85
    Introducing the Transport Layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
    Transport Layer Concepts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
    Understanding TCP and UDP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
    Firewalls and Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
    Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
    Q&A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
    Workshop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
    Key Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
HOUR 7: The Application Layer 109
    What Is the Application Layer? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
    The TCP/IP Application Layer and OSI . . . . . . . . . . . . . . . . . . . . . . . . . . 110
    Network Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
    APIs and the Application Layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
    TCP/IP Utilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
    Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
    Q&A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
    Workshop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
    Key Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
Part III: Networking with TCP/IP 119
HOUR 8: Routing 121
    Routing in TCP/IP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
    Routing on Complex Networks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
    Examining Interior Routers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134
    Exterior Routers: BGP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
    Classless Routing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
    Higher in the Stack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138
    Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
    Q&A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
    Workshop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
    Key Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
HOUR 9: Getting Connected 143
    Cable Broadband . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144
    Digital Subscriber Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145
    Wide Area Networks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146
    Wireless Networking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
    Dial-Up Networking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157
    Connectivity Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
    Switching Versus Routing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
    Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166
    Q&A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167
    Workshop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167
    Key Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168
HOUR 10: Name Resolution 171
    What Is Name Resolution? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171
    Name Resolution Using Hosts Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173
    DNS Name Resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175
    Registering a Domain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181
    Name Server Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182
    Dynamic DNS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 192
    NetBIOS Name Resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193
    Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194
    Q&A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194
    Workshop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195
    Key Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 196
HOUR 11: TCP/IP Security 197
    What Is a Firewall? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197
    Attack Techniques . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205
    What Do Intruders Want? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206
    Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 219
    Q&A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220
    Workshop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220
    Key Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221
HOUR 12: Configuration 223
    Getting on the Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223
    The Case for Server-Supplied IP Addresses . . . . . . . . . . . . . . . . . . . . . . . . 224
    What Is DHCP? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225
    How DHCP Works . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 226
    DHCP Server Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 229
    Network Address Translation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 230
    Zero Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 232
    Configuring TCP/IP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235
    Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 244
    Q&A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 244
    Workshop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 244
    Key Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 246
HOUR 13: IPv6: The Next Generation 247
    Why a New IP? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 248
    IPv6 Header Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 249
    IPv6 Addressing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253
    Subnetting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 254
    Multicasting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 255
    Link Local . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 255
    Neighbor Discovery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 256
    Autoconfiguration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 256
    IPv6 and Quality of Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 257
    IPv6 with IPv4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 258
    IPv6 Tunnels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 258
    Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 261
    Q&A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 262
    Workshop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 262
    Key Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 263
Part IV: Tools and Service 265
HOUR 14: Classic Tools 267
    Connectivity Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 268
    Protocol Dysfunction and Misconfiguration . . . . . . . . . . . . . . . . . . . . . . . 268
    Line Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 274
    Name Resolution Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 274
    Network Performance Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 275
    Telnet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 280
    Berkeley Remote Utilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 283
    Secure Shell . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 284
    Network Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 285
    Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 292
    Q&A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 292
    Workshop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 293
    Key Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 294
HOUR 15: Classic Services 297
    HTTP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 298
    Email . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 298
    FTP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 299
    Trivial File Transfer Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 303
    File and Print Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 303
    Lightweight Directory Access Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . 306
    Remote Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 309
    Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 311
    Q&A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 311
    Workshop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 311
    Key Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 312
Part V: The Internet 315
HOUR 16: The Internet: A Closer Look 317
    How the Internet Looks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 317
    What Happens on the Internet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 320
    URIs and URLs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 322
    Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 325
    Q&A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 325
    Workshop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 326
    Key Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 326
HOUR 17: HTTP, HTML, and the World Wide Web 329
    What Is the World Wide Web? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 329
    Understanding HTML . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 332
    Cascading Style Sheets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 337
    Understanding HTTP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 338
    Scripting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 341
    Web Browsers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 344
    The Semantic Web . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 348
    XHTML . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 350
    HTML5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 351
    Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 356
    Q&A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 356
    Workshop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 356
    Key Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 357
HOUR 18: Web Services 359
    Content Management Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 360
    Social Networking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 361
    Peer-to-Peer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 364
    Understanding Web Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 365
    XML. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 368
    SOAP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 369
    WSDL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 370
    Web Service Stacks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 371
    REST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 371
    E-Commerce . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 374
    Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 377
    Q&A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 377
    Workshop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 377
    Key Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 378
HOUR 19: Encryption, Tracking, and Privacy 379
    Encryption and Secrecy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 380
    Tracking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 395
    Anonymity Networks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 403
    Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 404
    Q&A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 405
    Workshop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 405
    Key Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 406
Part VI: TCP/IP at Work 409
HOUR 20: Email 411
    What Is Email? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 411
    Email Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 412
    How Email Works . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 413
    Simple Mail Transfer Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 416
    Retrieving the Mail. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 418
    Email Clients . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 420
    Webmail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 422
    Spam . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 423
    Phishing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 426
    Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 427
    Q&A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 427
    Workshop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 427
    Key Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 428
HOUR 21: Streaming and Casting 431
    The Streaming Problem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 431
    A Brief Introduction to Multimedia Files . . . . . . . . . . . . . . . . . . . . . . . . . . 432
    Real-Time Transport Protocol–Streaming Over UDP . . . . . . . . . . . . . . . . . 435
    RTMP–Streaming Over TCP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 438
    SCTP and DCCP–Replacing the Transport Layer . . . . . . . . . . . . . . . . . . . 439
    Streaming Over HTTP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 440
    HTML5 and Multimedia . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 442
    Podcasting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 442
    Voice over IP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 443
    Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 445
    Q&A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 445
    Workshop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 446
    Key Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 446
HOUR 22: Living in the Cloud 449
    What Is the Cloud? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 449
    Private Clouds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 460
    Future of Computing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 461
    Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 462
    Q&A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 462
    Workshop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 462
    Key Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 463
HOUR 23: Internet of Things 465
    What Is the Internet of Things? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 465
    IoT Platforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 467
    Up Close: MQTT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 470
    RFID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 472
    Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 474
    Q&A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 474
    Workshop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 474
    Key Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 475
HOUR 24: Implementing a TCP/IP Network: 7 Days in the Life of a Sys Admin 477
    A Brief History of Hypothetical, Inc.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 477
    7 Days in the Life of Maurice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 478
    Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 487
    Q&A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 487
    Workshop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 488
    Key Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 488
APPENDIXES
APPENDIX A: Answers to Quizzes and Exercises 491
APPENDIX B: Sources 503
9780672337895, TOC, 2/1/2017

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InformIT Promotional Mailings & Special Offers

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Overview


Pearson Education, Inc., 221 River Street, Hoboken, New Jersey 07030, (Pearson) presents this site to provide information about products and services that can be purchased through this site.

This privacy notice provides an overview of our commitment to privacy and describes how we collect, protect, use and share personal information collected through this site. Please note that other Pearson websites and online products and services have their own separate privacy policies.

Collection and Use of Information


To conduct business and deliver products and services, Pearson collects and uses personal information in several ways in connection with this site, including:

Questions and Inquiries

For inquiries and questions, we collect the inquiry or question, together with name, contact details (email address, phone number and mailing address) and any other additional information voluntarily submitted to us through a Contact Us form or an email. We use this information to address the inquiry and respond to the question.

Online Store

For orders and purchases placed through our online store on this site, we collect order details, name, institution name and address (if applicable), email address, phone number, shipping and billing addresses, credit/debit card information, shipping options and any instructions. We use this information to complete transactions, fulfill orders, communicate with individuals placing orders or visiting the online store, and for related purposes.

Surveys

Pearson may offer opportunities to provide feedback or participate in surveys, including surveys evaluating Pearson products, services or sites. Participation is voluntary. Pearson collects information requested in the survey questions and uses the information to evaluate, support, maintain and improve products, services or sites, develop new products and services, conduct educational research and for other purposes specified in the survey.

Contests and Drawings

Occasionally, we may sponsor a contest or drawing. Participation is optional. Pearson collects name, contact information and other information specified on the entry form for the contest or drawing to conduct the contest or drawing. Pearson may collect additional personal information from the winners of a contest or drawing in order to award the prize and for tax reporting purposes, as required by law.

Newsletters

If you have elected to receive email newsletters or promotional mailings and special offers but want to unsubscribe, simply email information@informit.com.

Service Announcements

On rare occasions it is necessary to send out a strictly service related announcement. For instance, if our service is temporarily suspended for maintenance we might send users an email. Generally, users may not opt-out of these communications, though they can deactivate their account information. However, these communications are not promotional in nature.

Customer Service

We communicate with users on a regular basis to provide requested services and in regard to issues relating to their account we reply via email or phone in accordance with the users' wishes when a user submits their information through our Contact Us form.

Other Collection and Use of Information


Application and System Logs

Pearson automatically collects log data to help ensure the delivery, availability and security of this site. Log data may include technical information about how a user or visitor connected to this site, such as browser type, type of computer/device, operating system, internet service provider and IP address. We use this information for support purposes and to monitor the health of the site, identify problems, improve service, detect unauthorized access and fraudulent activity, prevent and respond to security incidents and appropriately scale computing resources.

Web Analytics

Pearson may use third party web trend analytical services, including Google Analytics, to collect visitor information, such as IP addresses, browser types, referring pages, pages visited and time spent on a particular site. While these analytical services collect and report information on an anonymous basis, they may use cookies to gather web trend information. The information gathered may enable Pearson (but not the third party web trend services) to link information with application and system log data. Pearson uses this information for system administration and to identify problems, improve service, detect unauthorized access and fraudulent activity, prevent and respond to security incidents, appropriately scale computing resources and otherwise support and deliver this site and its services.

Cookies and Related Technologies

This site uses cookies and similar technologies to personalize content, measure traffic patterns, control security, track use and access of information on this site, and provide interest-based messages and advertising. Users can manage and block the use of cookies through their browser. Disabling or blocking certain cookies may limit the functionality of this site.

Do Not Track

This site currently does not respond to Do Not Track signals.

Security


Pearson uses appropriate physical, administrative and technical security measures to protect personal information from unauthorized access, use and disclosure.

Children


This site is not directed to children under the age of 13.

Marketing


Pearson may send or direct marketing communications to users, provided that

  • Pearson will not use personal information collected or processed as a K-12 school service provider for the purpose of directed or targeted advertising.
  • Such marketing is consistent with applicable law and Pearson's legal obligations.
  • Pearson will not knowingly direct or send marketing communications to an individual who has expressed a preference not to receive marketing.
  • Where required by applicable law, express or implied consent to marketing exists and has not been withdrawn.

Pearson may provide personal information to a third party service provider on a restricted basis to provide marketing solely on behalf of Pearson or an affiliate or customer for whom Pearson is a service provider. Marketing preferences may be changed at any time.

Correcting/Updating Personal Information


If a user's personally identifiable information changes (such as your postal address or email address), we provide a way to correct or update that user's personal data provided to us. This can be done on the Account page. If a user no longer desires our service and desires to delete his or her account, please contact us at customer-service@informit.com and we will process the deletion of a user's account.

Choice/Opt-out


Users can always make an informed choice as to whether they should proceed with certain services offered by InformIT. If you choose to remove yourself from our mailing list(s) simply visit the following page and uncheck any communication you no longer want to receive: www.informit.com/u.aspx.

Sale of Personal Information


Pearson does not rent or sell personal information in exchange for any payment of money.

While Pearson does not sell personal information, as defined in Nevada law, Nevada residents may email a request for no sale of their personal information to NevadaDesignatedRequest@pearson.com.

Supplemental Privacy Statement for California Residents


California residents should read our Supplemental privacy statement for California residents in conjunction with this Privacy Notice. The Supplemental privacy statement for California residents explains Pearson's commitment to comply with California law and applies to personal information of California residents collected in connection with this site and the Services.

Sharing and Disclosure


Pearson may disclose personal information, as follows:

  • As required by law.
  • With the consent of the individual (or their parent, if the individual is a minor)
  • In response to a subpoena, court order or legal process, to the extent permitted or required by law
  • To protect the security and safety of individuals, data, assets and systems, consistent with applicable law
  • In connection the sale, joint venture or other transfer of some or all of its company or assets, subject to the provisions of this Privacy Notice
  • To investigate or address actual or suspected fraud or other illegal activities
  • To exercise its legal rights, including enforcement of the Terms of Use for this site or another contract
  • To affiliated Pearson companies and other companies and organizations who perform work for Pearson and are obligated to protect the privacy of personal information consistent with this Privacy Notice
  • To a school, organization, company or government agency, where Pearson collects or processes the personal information in a school setting or on behalf of such organization, company or government agency.

Links


This web site contains links to other sites. Please be aware that we are not responsible for the privacy practices of such other sites. We encourage our users to be aware when they leave our site and to read the privacy statements of each and every web site that collects Personal Information. This privacy statement applies solely to information collected by this web site.

Requests and Contact


Please contact us about this Privacy Notice or if you have any requests or questions relating to the privacy of your personal information.

Changes to this Privacy Notice


We may revise this Privacy Notice through an updated posting. We will identify the effective date of the revision in the posting. Often, updates are made to provide greater clarity or to comply with changes in regulatory requirements. If the updates involve material changes to the collection, protection, use or disclosure of Personal Information, Pearson will provide notice of the change through a conspicuous notice on this site or other appropriate way. Continued use of the site after the effective date of a posted revision evidences acceptance. Please contact us if you have questions or concerns about the Privacy Notice or any objection to any revisions.

Last Update: November 17, 2020