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ZyWALL (ZLD) CLI Reference Guide 199
CHAPTER 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.
23.3 External 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.