Network+ Guide to Networks,
Fourth Edition
Chapter 8
Network Operating Systems and
Windows Server 2003-Based Networking
Network+ Guide to Networks, 4e 2
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
Network+ Guide to Networks, 4e 3
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
Network+ Guide to Networks, 4e 4
Introduction to Network Operating
Systems
•
A NOS must:

Decision will depend largely on OSs and
applications running on LAN
•
Consider:
–
Compatibility with existing infrastructure
–
Security
–
Whether applications will run smoothly
–
Scalability
–
Additional services
–
Budget
–
Training
–
Support
Network+ Guide to Networks, 4e 7
Network Operating Systems
and Servers
•
Most networks rely on servers that exceed
minimum hardware requirements suggested by
software vendor
•
Considerations to determine optimal hardware:
–

•
To expedite access to directories whose files are
frequently required, map a drive to that directory
•
File access protocol enables one system to access
resources stored on another system
–
Common Internet File System (CIFS)
–
Server Message Block (SMB)
–
AppleTalk Filing Protocol (AFP)
•
Middleware: software used to translate requests
and responses between client and server
Network+ Guide to Networks, 4e 11
Client/Server Communication (continued)
Figure 8-2: Middleware between clients and a server
Network+ Guide to Networks, 4e 12
Users and Groups
•
Combine users with similar needs and restrictions
into groups
–
Form basis for resource and account management
–
Assign different file or directory access rights groups
–
Can be nested or arranged hierarchically
•

placed in organizational units (OUs)
•
Tree: logical representation of multiple, hierarchical
levels within a directory
–
Branches and left objects
Network+ Guide to Networks, 4e 15
Identifying and Organizing Network
Elements (continued)
Figure 8-3: Schema elements associated with a User account
object
Network+ Guide to Networks, 4e 16
Identifying and Organizing Network
Elements (continued)
Figure 8-4: A directory tree
Network+ Guide to Networks, 4e 17
Sharing Applications
•
Shared applications often installed on file server
specifically designed to run applications
•
Network Administrator must purchase license for
application that allows it to be shared
–
Per user licensing
–
Per seat licensing
–
Site license
•

Managing System Resources: Memory
•
Physical memory: RAM chips installed on
computer’s system board
–
Provide memory to that machine
•
Virtual memory: Stored on hard disk as a page file
–
Managed by OS
–
Paging: When system exceeds available RAM,
blocks of information (pages) moved into virtual
memory
–
Expands available memory
–
Slows system performance
Network+ Guide to Networks, 4e 21
Multitasking
•
Ability of a processor to perform many different
operations in a brief period of time
–
Programs take turns loading and running
•
Preemptive multitasking or Time sharing
Network+ Guide to Networks, 4e 22
Multiprocessing
•

–
Enterprise Edition
–
Datacenter Edition
Network+ Guide to Networks, 4e 24
Introduction to Windows
Server 2003 (continued)
•
General benefits of Standard Edition:
–
Multiprocessor, multitasking, symmetric
multiprocessing
–
Active Directory
–
Microsoft Management Console (MMC)
–
Integrated Web development and delivery services
–
Support for modern protocols and security standards
–
Integration with other NOSs
–
Integrated remote client services
–
Monitoring and improving server performance
–
High-performance, large-scale storage support
Network+ Guide to Networks, 4e 25
Windows Server 2003 Hardware