This will make it easier to
visualize the project and logically design the location of ISA servers.
In addition to mapping out the locations of routers, switches, and the logical network as a
whole, it is a good idea to match up the network design with the overall location of
computers and computer services. Understanding where critical servers are logically
located on a network, and where client workstations are located, can be useful in determining
where to place ISA servers. For example, if a client network is composed of workstations
from a department that is prone to virus infestations or exploits, it might prove
helpful to place an ISA server between that network and a separate network of missioncritical
servers.
When all is said and done, an ISA server design process is only as complete as the knowledge
that was used to create it. It is therefore important to understand how the current
environment is structured before you try to decide where and how to utilize ISA.
Matching Goals and Objectives to ISA Features
It may seem trite, but many ISA design sessions start with a lack of understanding of what
the organization needs to get out of ISA.
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