Unified Security Gateway User's Guide

Chapter 31 Content Filter Screens
ZyWALL USG 300 User’s Guide
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31.9 Content Filter Cache Screen
Click Anti-X > Content Filter > Cache to display the Content Filter Cache screen. Use this
screen to view and configure your ZyWALL’s URL caching. You can also configure how long
a categorized web site address remains in the cache as well as view those web site addresses to
which access has been allowed or blocked based on the responses from the external content
filtering server. The ZyWALL only queries the external content filtering database for sites not
found in the cache.
You can remove individual entries from the cache. When you do this, the ZyWALL queries
the external content filtering database the next time someone tries to access that web site. This
allows you to check whether a web site’s category has been changed.
Please see Section 32.2 on page 488 for how to submit a web site that has been incorrectly
categorized.
Figure 353 Anti-X > Content Filter > Cache
The following table describes the labels in this screen.
Table 151 Anti-X > Content Filter > Cache
LABEL DESCRIPTION
URL Cache Entry
Flush Click this button to clear all web site addresses from the cache manually.