23

Content Filtering

This chapter covers how to use the content filtering feature to control web access.

23.1 Content Filtering Overview

Content filtering allows you to block certain web features, such as cookies, and/or block access to specific web sites. It can also block access to specific categories of web site content. You can create different content filtering policies for different addresses, schedules, users or groups and content filtering profiles. For example, you can configure one policy that blocks John Doe’s access to arts and entertainment web pages during the workday and another policy that lets him access them after work.

23.2 Content Filtering Policies

A content filtering policy allows you to do the following.

•Use schedule objects to define when to apply a content filtering profile.

•Use address and/or user/group objects to define to whose web access to apply the content filtering profile.

•Apply a content filtering profile that you have custom-tailored.

23.3External Web Filtering Service

When you register for and enable the external web filtering service, your ZyWALL accesses an external database that has millions of web sites categorized based on content. You can have the ZyWALL block, block and/or log access to web sites based on these categories.

23.4 Content Filtering Reports

See the web configurator User’s Guide to see how to view content filtering reports after you have activated the category-based content filtering subscription service.

 

199

ZyWALL (ZLD) CLI Reference Guide