Chapter 8: Network Operating Systems and
Windows Server 2003-Based Networking
Network+ Guide to Networks
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Objectives:
Discuss the functions and features of a network operating system
Define the requirements for a Windows Server 2003 network environment
Describe how Windows Server 2003 fits into an enterprise-wide network
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Objectives (continued)
Perform a simple Windows Server 2003 installation
Manage simple user, group, and rights parameters in Windows Server 2003
Understand how Windows Server 2003 integrates with other popular network operating systems
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Introduction to Network Operating Systems
• Centrally manage network resources
• Secure access to network
• Allow remote users to connect
• Allow users to connect to other networks
• Back up data and make sure it’s available
• Allow for simple additions of clients and resources
• Monitor status and functionality of network elements
• Distribute programs and software updates to clients
• Ensure efficient use of a server’s capabilities
• Provide fault tolerance
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Introduction to Network Operating Systems (continued)
• Selecting a Network Operating System
• Compatible with existing infrastructure?
• Provide the security required by resources?
• Can technical staff manage it effectively?
• Will applications run smoothly on it?
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Introduction to Network Operating Systems (continued)
• Selecting a Network Operating System
• Will it accommodate future growth?
• Does it support the additional services users require?
• Does it fit budget?
• What additional training will it require?
• Support from its manufacturer?
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Introduction to Network Operating Systems (continued)
• Network Operating Systems and Servers
• How many clients will connect to the server?
• What kinds of applications will run on the server?
• How much storage space will each user need?
• How much downtime, if any, is acceptable?
• What can the organization afford?
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Network Operating System Services and Features
• Client Support
• Creating and managing client accounts
• Enabling clients to connect to the network
• Allowing clients to share resources
• Managing clients’ access to shared resources
• Facilitating communication between clients
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Network Operating System Services and Features (continued)
• Client/Server Communication
• Credentials- user name and password
• Redirector- intercepts the request
• Authentication- matching credentials
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Network Operating System Services and Features (continued)
• Users and Groups
• Access a client (or user) has depends on user account and groups assigned
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Network Operating System Services and Features (continued)
• Identifying and Organizing Network Elements• Directory
• LDAP (Lightweight Directory Access Protocol)
• Object
• Attributes
• Schema
• Containers, or Organizational Units (OUs).
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Network Operating System Services and Features (continued)
• Sharing Applications• Ability to share resources, reducing costs and time
required to manage the resources
• Sharing Printers• Increase the efficiency of managing resources and
reduce costs for an organization
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Network Operating System Services and Features (continued)
• Sharing Printers• All NOSs can
• Create an object that identifies the printer to the rest of the network
• Assign the printer a unique name
• Install drivers associated with the printer
• Set printer attributes, such as location and printing preferences
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Network Operating System Services and Features (continued)
• Sharing Printers• All NOSs can (continued)
• Establish or limit access to the printer
• Remotely test and monitor printer functionality
• Update and maintain printer drivers
• Manage print jobs, including modifying a job’s priority or deleting jobs from the queue
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Network Operating System Services and Features (continued)
• Managing System Resources• Memory
• Physical memory and Virtual memory
• Multitasking
• Preemptive multitasking
• Multiprocessing
• Processing and Threads
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Introduction to Windows Server 2003
• Four different, but related NOSs:• Standard Edition
• Web Edition
• Enterprise Edition
• Datacenter Edition
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Why Choose Windows Server 2003?
• General benefits, Standard Edition• Support for multiple processors, multitasking, and
symmetric multiprocessing
• Active Directory
• Microsoft Management Console (MMC)
• Integrated Web development and delivery services
• Support for modern protocols and security
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Why Choose Windows Server 2003? (continued)
• General benefits, Standard Edition• Excellent integration with NOSs and support for
client operating systems
• Integrated remote client services
• Provisions for monitoring and improving server performance
• Support for high-performance, large-scale storage devices
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Windows Server 2003 Hardware Requirements
• Servers generally require more processing power, memory, and hard disk space than do client workstations
• The Hardware Compatibility List (HCL) lists all computer components proven to be compatible with Windows Server 2003.
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A Closer Look at Windows Server 2003
• Windows Server 2003 Memory Model
• Can use virtual memory
• Assigns each application (or process) its own 32-bit memory area
• Allows you to install more physical memory
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A Closer Look at Windows Server 2003 (continued)
• Windows Server 2003 File Systems
• FAT (File Allocation Table)
• FAT16 & FAT32
• CDFS (CD-ROM File System) and UDF (Universal Disk Format)
• NTFS (New Technology File System)
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A Closer Look at Windows Server 2003 (continued)
• Microsoft Management Console (MMC)
• All administrative tools are integrated into a single interface
• Purpose is to gather multiple administrative tools into a convenient console for your network environment
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A Closer Look at Windows Server 2003 (continued)
• Active Directory• Workgroups
• Group of interconnected computers that share each other’s resources
• Domains
• Domain model
• Domain controllers
• Member servers.
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A Closer Look at Windows Server 2003 (continued)
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A Closer Look at Windows Server 2003 (continued)
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A Closer Look at Windows Server 2003 (continued)
• Active Directory (cont.)
• Organizational Units
• NOSs use organizational units (OUs) to hold multiple objects that have similar characteristics
• Windows Server 2003 OU can contain over 10 million objects
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A Closer Look at Windows Server 2003 (continued)
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A Closer Look at Windows Server 2003 (continued)
• Trees and Forests
• Domain tree
• Root domain
• Child domains
• Forest
• Collection of one or more domain trees
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A Closer Look at Windows Server 2003 (continued)
• Trust Relationships
• Two-way transitive trust
• Explicit one-way trust
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A Closer Look at Windows Server 2003 (continued)
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A Closer Look at Windows Server 2003 (continued)
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A Closer Look at Windows Server 2003 (continued)
• Naming Conventions
• Distinguished name (DN)
• Relative distinguished name (RDN)
• User principal name (UPN)
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A Closer Look at Windows Server 2003
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Planning for Installation
• Create a plan for your server and its place in your network
• Consider many factors, including organizational structure, server function, applications, number of users, LAN architecture, and optional services
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Installing and Configuring a Windows Server 2003 Server
• The Installation Process• Can install from a CD-ROM or remotely over the
network
• Initial Configuration• Server still isn’t ready to support clients
• You must configure the software
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Installing and Configuring a Windows Server 2003 Server
(continued)
• Establishing Users and Groups• Installation process creates two accounts:
• Guest
• limited privileges
• Administrator
• extensive privileges
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Internetworking with Other Network Operating Systems
(continued)
• Windows Server 2003 can communicate with almost any kind of client and, given the proper software and configuration, with the other major NOSs
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Chapter Summary
• Functions and features of a network operating system
• Define the requirements for a Windows Server 2003 network environment
• Describe how Windows Server 2003 fits into an enterprise-wide network
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Chapter Summary (continued)
• Perform a simple Windows Server 2003 installation
• Manage simple user, group, and rights parameters in Windows Server 2003
• Understand how Windows Server 2003 integrates with other popular network operating systems