Keyword Blocking Url Checking; Content Filter Cache Screen - ZyXEL Communications ZyWALL 1050 User Manual

Table 125 Configuration > Policy > Content Filtering > Filtering Profiles > Customization
LABEL
Blocked URL Keywords
Add Blocked Keyword
Blocked URL Keywords
Add
Delete
OK
Cancel

22.8 Keyword Blocking URL Checking

The ZyWALL checks the URL's domain name (or IP address) and file path separately when
performing keyword blocking.
The URL's domain name or IP address is the characters that come before the first slash in the
URL. For example, with the URL www.zyxel.com.tw/news/pressroom.php, the domain name
is www.zyxel.com.tw.
The file path is the characters that come after the first slash in the URL. For example, with the
URL www.zyxel.com.tw/news/pressroom.php, the file path is news/pressroom.php.
Since the ZyWALL checks the URL's domain name (or IP address) and file path separately, it
will not find items that go across the two. For example, with the URL
news/pressroom.php, the ZyWALL would find "tw" in the domain name
(www.zyxel.com.tw). It would also find "news" in the file path (news/pressroom.php) but it
would not find "tw/news".

22.9 Content Filter Cache Screen

Click Configuration > Policy > 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.
Chapter 22 Content Filtering Screens
DESCRIPTION
This section allows you to block Web sites with URLs that contain
certain keywords in the domain name or IP address. You can enter up
to 256 keywords.
Enter a keyword or a numerical IP address to block. You can also enter
a numerical IP address.
Use up to 63 case-insensitive characters (0-9a-zA-Z;/?:@&=+$\.-
_!~*'()%,). For example enter Bad_Site to block access to any web page
that includes the exact phrase Bad_Site. This does not block access to
web pages that only include part of the phrase (such as Bad for
example).
This list displays the keywords already added.
Click this button when you have finished adding the key words field
above.
Select a keyword from the Keyword List, and then click this button to
delete it from that list.
Click OK to save your changes back to the ZyWALL.
Click Cancel to exit this screen without saving your changes.
ZyWALL 1050 User's Guide
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