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The Accidental SysAdmin Handbook: A Primer for Entry Level IT Professionals, Second Edition by Eric Kralicek

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CHAPTER 5

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Network Services Architecture

Core network services are found in the upper layers of the OSI model and layers 3 and 4 of the TCP/IP model. They are the basis for common communications used by everyone on the LAN, as shown in Figure 5-1.

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Figure 5-1. Business information services relationship

Core network services affect all other services in every organization. When designing those core network services, you should envision how those services are to be incorporated into the overall network services package. The goal for every system ...

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