Table of Contents

Introduction

HOUR 1: An Overview of Networking

What Is a Network? What Is Networking?

Why Build a Network?

How Networks Are Put Together

The Network Architecture: Combining the Physical and Logical Components

Two Varieties of Networks: Local and Wide Area

How the Internet Relates to Your Network

Connecting to the Internet

Why the Internet Matters

Intranets, Extranets, and internets

Summary

Q&A

HOUR 2: The Benefits of Networking

Computing Before Computer Networks

Networking’s Breakthrough: Packet-Switched Data

Benefits of Networking

Summary

Q&A

HOUR 3: Getting Data from Here to There: How Networking Works

Network Protocols

The OSI Model (and Why You Should Be Familiar with It)

The Internet Model

Addresses: Network or Layer 3 Addresses

MAC or Layer 2 Address: That Is to Say, Ethernet Addresses

Using Addresses to Relay Traffic

Overview of the Principal Protocols

IPX

And Farewell NetBIOS and NetBEUI

Summary

Q&A

HOUR 4: Computer Concepts

Numbers, Magnitudes, and Fractions

Computer Hardware

Network Cards

Operating System (OS) and Other Software

Summary

Q&A

HOUR 5: Network Concepts

Elements of a Network

The Need for Speed

Router

The Client/Server Model

Server

Server Operating Systems

Media

Summary

Q&A

HOUR 6: Extending LANs with Wide Area Networks (WANs)

What Is a WAN?

Components of a WAN

User-Network Interface, Inner-Network Interface, and Network-Network Interface

Residential Broadband

Layer 1 WAN Carrier Systems: T1 and SONET

Layer 2 for WANs: ATM and MPLS

Putting More Pieces Together

Summary

Q&A

HOUR 7: Mobile Wireless Networking

Understanding Wireless Networking

A Brief History of Mobile Wireless Networks

The Cell Concept

Wi-Fi

Bluetooth

Are Wi-Fi and Bluetooth in Competition?

Frequency Interference Between Wi-Fi and Bluetooth?

Security Considerations with Wireless Networks

Implementation Considerations

Summary

Q&A

HOUR 8: Remote Networking

Early “Remote Control”

Remote Control for System Administration

Modems and Remote Access

Modern Remote Access Protocols and Procedures

The Point-to-Point Protocol (PPP)

Using the Internet for Remote Access: The VPN

Remote Access Hardware: Build or Buy?

Summary

Q&A

HOUR 9: Planning for the Network

Best Practices and Building Computer Networks

Planning Best Practices: Plan, Design, Implement, and Tune

Applying the Best Practices

Interoperability by Using Standards

Improving Security Using Best Practices

Summary

Q&A

HOUR 10: Designing a Network

Step 1: Identify the Uses of the Network

Step 2: List Which Tasks Execute on Which Computers

Step 3: Select the Type of Network: To Centralize or Not to Centralize

Step 4: “Draw” the Network

Step 5: Write the Specification

Step 6: Build the Network

Summary

Q&A

HOUR 11: Selecting Network Hardware and Software

Evaluating the Server Hardware

Evaluating the “Interworking” Hardware

Hardware Selection Considerations for Ethernet Networks

Selecting the Network Type: Client/Server or Peer to Peer

Peer-to-Peer OSs

Peer-to-Peer Networking with Microsoft Windows

Evaluating NOSs

The Network “Bottleneck”

A Word Regarding Network Protocols

Summary

Q&A

HOUR 12: Assembling a Network

Before Installation

Installing Adapter Cards

Working with Wiring

A Word About Wireless Networking

Summary

Q&A

HOUR 13: Network Applications

Introduction to Groupware

Email

Scheduling and Calendars

Contact Management

A Sampler of Network-Based Applications

Summary

Q&A

HOUR 14: Connecting to the Internet: Initial Operations

Origins of the Internet

ISPs

IXPs

BGP

Peering

Considerations for Choosing an ISP

How and Why TCP/IP Was Created

Ports

Sockets

IP Features

TCP Features

UDP Features

Summary

Q&A

HOUR 15: Connecting to the Internet: Key Supporting Operations

The DNS

IP Addresses

Getting Your IP Addresses

Configuring Network Devices with IP Addresses

DHCP

The Web

Ideas for Establishing a Website

Summary

Q&A

HOUR 16: Microsoft Networking

Microsoft’s Logical Network Structure

Installing and Configuring a Microsoft Server

Configuring Network Protocols in Windows

Sharing Folders and Printers on the Network

Managing a Microsoft Server

Future of Windows Server 2003

Windows Server 2008

Summary

Q&A

HOUR 17: UNIX and Linux Networking

How UNIX Got Its Start

Basic UNIX Concepts

UNIX/LINUX as a Network Platform

Network Services and Settings on a Linux Server

Options for Sharing Files

Summary of Network Servers

Summary

Q&A

HOUR 18: Putting the Pieces Together

Review of Internet Layered Model

Key Network Components’ Position in the Layers

Names, Addresses, and Sockets: The Cogs of Communications

Relationships of Names, Addresses, and Sockets

Common Locations of Components at Network Interfaces

HOUR 19: Role of the Network Administrator

Information Technology Jobs

Computer Networking Education and Certification

Additional Thoughts on Managing the Planning and Installation Processes

A Few Thoughts on Budgets

Managing Network Projects

Summary

Q&A

HOUR 20: Security

Basic Terms

Security Threats

Security Defenses

Securing the Internal Network

Dealing with Viruses

Protecting the Internal Network from External Attacks

Other Key Security Protocols

Wireless Networks

Best Practices for Securing a Network

Summary

Q&A

HOUR 21: Managing a Network

Upgrading the Network

Managing Hardware Upgrades and Growth

Managing Software Upgrades and Growth

Dealing with NOS and Client Licensing

Backing Up Network Data

Network and Disaster Recovery Planning

Archives

Summary

Q&A

HOUR 22: Network Troubleshooting

MIBs and SNMP

Troubleshooting Routers

Monitoring Server Hardware

Processor Performance

Hard Drive Performance and Space

Memory Utilization

Using Event Logs to Track Problems

TCP/IP Connectivity Command-Line Tools

Summary

Q&A

HOUR 23: A Day in the Life of a Network Administrator

Your Job as an Administrator

Daily Tasks

Strategies for Supporting Users

Establishing Network Policies

Summary

Q&A

HOUR 24: Where Are Networks Going from Here?

Continued Growth of Linux

Nationwide Variation of Wi-Fi: WiMax

Computing with Clouds

Computers, Bioengineering, and the Clouds

Glossary

Index

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