Content Filter Technical Reference - ZyXEL Communications ZyWall USG 2000 User Manual

Unified security gateway

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Table of Contents

Chapter 33 Content Filtering

Table 167 Anti-X > Content Filter > Cache (continued)

33.8 Content Filter Technical Reference

This section provides content filtering background information.

Click this button to reload the list of content filter cache entries.

This is the number of web site addresses in the content filter cache.

Select how many web site addresses to display per page in the screen.

This is the number of the page of entries currently displayed and the

total number of pages of entries. Type a page number to go to or use

the arrows to navigate the pages of entries.

This is the index number of a categorized web site address record.

This field shows whether access to the web site's URL was blocked or

Click the column heading to sort the entries. Point the triangle up to

display the blocked URLs before the URLs to which access was allowed.

Point the triangle down to display the URLs to which access was allowed

before the blocked URLs.

This is a web site's address that the ZyWALL previously checked with

the external content filtering database.

This is the number of minutes left before the URL entry is discarded

from the cache.

Click the Delete icon to remove the URL entry from the cache.

Type the maximum time to live (TTL) (1 to 720 hours). This sets how

long the ZyWALL is to keep an entry in the URL cache before discarding

The external content filtering database frequently adds previously

uncategorized web sites and sometimes changes a web site's category.

Setting this limit higher will speed up the processing of web access

requests but will also make it take longer for the ZyWALL to reflect

changes in the external content filtering database.

Click Apply to save your changes back to the ZyWALL.

Click Reset to begin configuring this screen afresh.

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