Chapter 13 Content Filtering
NBG4604 User’s Guide
139
The following table describes the labels in this screen.
13.5
Technical Reference
The following section contains additional technical information about the NBG4604
features described in this chapter.
13.5.1
Customizing Keyword Blocking URL Checking
You can use commands to set how much of a website’s URL the content filter is to
check for keyword blocking. See the appendices for information on how to access
and use the command interpreter.
Domain Name or IP Address URL Checking
By default, the NBG4604 checks the URL’s domain name or IP address when
performing keyword blocking.
This means that the NBG4604 checks the characters that come before the first
slash in the URL.
Table 55
Security > Content Filter > Filter
LABEL
DESCRIPTION
Enable URL
Keyword
Blocking
The NBG4604 can block Web sites with URLs that contain certain
keywords in the domain name or IP address. For example, if the
keyword "bad" was enabled, all sites containing this keyword in the
domain name or IP address will be blocked, e.g., URL http://
www.website.com/bad.html would be blocked. Select this check box to
enable this feature.
Keyword
Type a keyword in this field. You may use any character (up to 64
characters). Wildcards are not allowed. You can also enter a numerical
IP address.
Keyword List
This list displays the keywords already added.
Add
Click
Add
after you have typed a keyword.
Repeat this procedure to add other keywords. Up to 64 keywords are
allowed.
When you try to access a web page containing a keyword, you will get
a message telling you that the content filter is blocking this request.
Delete
Highlight a keyword in the lower box and click
Delete
to remove it.
The keyword disappears from the text box after you click
Apply
.
Clear All
Click this button to remove all of the listed keywords.
Apply
Click
Apply
to save your changes.
Reset
Click
Reset
to begin configuring this screen afresh
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