Other common deployment models,
such as ISA deployment in a workgroup and unihomed ISA reverse-proxy systems, are
similar in many ways, with slight variations to implementation.
Deploying the Configuration Storage Server (CSS)
The Configuration Storage Server (CSS) is the central repository for all of ISA??™s rules and
configuration information, and is therefore an extremely important piece of the ISA
Enterprise Environment. ISA Standard version does not have a CSS equivalent because the
rules and configuration of the Standard version are all stored locally. It is important to
understand how to deploy and work within the CSS model before deploying and administering
ISA Server 2006 Enterprise Edition.
160 CHAPTER 6 Deploying ISA Server Arrays with ISA Server 2006 Enterprise Edition
Exchange
Mailbox
Server
AD Domain
Controller /
CSS Replica
Edge-Array
SMTP Mail
Filter
Front-end OWA
AD Domain
Controller
CSS Server
NY-Email-Array
Exchange Mailbox
Server
New York
Paris Tokyo
Paris-Email-Array Tokyo-Email-Array
Internet
New York Internal Network
Clients
Clients
AD Domain Controller /
CSS Replica
New York Internal Network
New York DMZ Network
Paris Internal Network
Clients
Tokyo Internal Network
Paris Email Network Tokyo Email Network
Remote
Clients
FIGURE 6.
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