This supplement to the Websense Web Security and Websense Web Filter Installation Guide provides information specific to integrating Websense software with Microsoft® Internet Security and Acceleration (ISA) Server. For general installation instructions, refer to the Installation Guide.
An integration with Microsoft ISA Server affects the following Websense components:
-ISAPI Filter plug-in: This additional Websense component is installed on the machine running ISA Server. The Websense ISAPI Filter configures ISA Server to communicate with Filtering Service.
-Filtering Service: Interacts with ISA Server and Network Agent to filter Internet requests. Filtering Service either permits the Internet request or sends an appropriate block message to the user.
After the Filtering Service is installed, the ISAPI Filter must be installed on every ISA Server machine in your network.
If Websense software is installed on the same machine as ISA Server, the Websense ISAPI Filter must be installed on that machine at the same time.
-Network Agent: Internet protocols that are not managed by the ISA Server are managed by Network Agent. It can detect HTTP network activity and instruct the Filtering Service to log this information.
-Transparent identification agents: Generally, ISA Server provides user authentication information for Websense software. If ISA Server is not configured to provide user information to Websense software, install the appropriate Websense transparent identification agent. See the Deployment Guide or Transparent Identification of Users technical paper for more information about these agents.
If your environment includes an array of ISA Server machines, the preferred configuration is to install Websense software on a machine outside of the array.
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