The integrated category-based URL filtering solution maintains a regularly updated database. When installing the URL filtering database, you can select its size. The smaller optimized database, which is recommended for typical scenarios, requires 1 GB of storage and 300 MB of network traffic for daily updates. The normal database, which is intended for more extensive scenarios, requires 6 GB of storage and 2 GB of network traffic for daily updates. During an upgrade, the storage required by the normal database temporarily increases from 6 GB to 18-20 GB.
For an overview of how URL filtering works, see Section 6.7.1, How URL filtering works.
For information on installing and selecting the size of the URL filter database, see Procedure 4.1.2, Configuring the pns-common package in Proxedo Network Security Suite 2 Installation Guide.
To configure URL filtering, see Section 6.7.2, Configuring URL filtering in HTTP.
To customize or expand the URL database, see Section 6.7.4, Customizing the URL database.
For a list of categories available by default, see Section 6.7.3, List of URL filtering categories.
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