ZyXEL Communications ZyXEL ZyWALL USG-1000, Руководство пользователя

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ZyWALL USG 2000 User’s Guide
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Content Filtering
33.1 Overview
Use the content filtering feature to control access to specific web sites or web
content.
33.1.1 What You Can Do in the Content Filter Screens
• Use the General screens ( Section 33.2 on page 543 ) to configure global
content filtering settings, configure content filtering policies, and check the
content filtering license status.
• Use the Filter Profile screens ( Section 33.4 on page 548 ) to set up content
filtering profiles.
• Use the Cache screen ( Section 33.7 on page 562 ) to view and configure your
ZyWALL’s URL caching.
33.1.2 What You Need to Know About Content Filtering
Content Filtering
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 filter policies for different
addresses, schedules, users or groups and content filter 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.
Content Filtering Policies
A content filtering policy allows you to do the following.
• Use schedule objects to define when to apply a content filter profile.
• Use address and/or user/group objects to define to whose web access to apply
the content filter profile.
• Apply a content filter profile that you have custom-tailored.