# Category Server Distribution Configuration Parameters

IDOL Category Component stores categories in a specially configured Content component, called AgentStore. When you use a stand-alone Category component in a distributed IDOL Server, you must configure the `[CatDRE]` configuration section to specify the details of the machine that hosts the category index.

For example:

    [CatDRE]
    ACIPort=9002
    Host=1.23.45.6

You must configure this section in the Category configuration file when you install Category as a stand-alone component. It configures communications between Category and AgentStore. For more information about component-based IDOL setups, refer to the IDOL Getting Started Guide.

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