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Integrating Web Security with Microsoft Products > Deployment considerations for integration with Forefront TMG
Deployment considerations for integration with Forefront TMG
Deployment and Installation Center | Web Security Solutions | Version 7.8.x
Applies to:                                         
In this topic                                       
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Web Filter and Web Security, v7.8.x
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Single Microsoft Forefront TMG configuration
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Array configuration
Single Microsoft Forefront TMG configuration
The following illustration shows placement of Websense policy enforcement and management components on 2 dedicated machines, separate from the Microsoft Forefront TMG server.
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The ISAPI Filter must be installed on the TMG machine so that Internet activity information can be communicated to Filtering Service.
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The Filtering Service and TMG machines must be able to communicate over the network.
The diagram provides a general overview and best practice location for your integration product, but does not show all Websense components. Larger networks require Websense components to be distributed across several dedicated machines.
Array configuration
Websense software is compatible with most array configurations, including Cache Array Routing Protocol (CARP) arrays. It is a best practice to install Websense software outside an array of Forefront TMG machines. Install the Websense ISAPI Filter on each member of the array. See the following illustration.
When Websense software is deployed in this configuration, all array members send Internet requests to Filtering Service outside the array.
Other configurations are possible. See your Microsoft Forefront TMG documentation for information about TMG configurations.
The diagram provides a general overview and best practice location for your integration product, but does not show all Websense components. Larger networks require Websense components to be distributed across several dedicated machines.

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Integrating Web Security with Microsoft Products > Deployment considerations for integration with Forefront TMG
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