ZyXEL Communications NBG-417N Technical Reference, Customizing Keyword Blocking URL Checking, 141

Chapter 14 Content Filtering

The following table describes the labels in this screen.

Table 52 Security > Content Filter > Filter

LABEL	DESCRIPTION
Enable URL	The NBG-417N can block Web sites with URLs that contain certain
Keyword	keywords in the domain name or IP address. For example, if the
Blocking	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

14.5 Technical Reference

The following section contains additional technical information about the NBG- 417N features described in this chapter.

14.5.1 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 NBG-417N checks the URL’s domain name or IP address when performing keyword blocking.

This means that the NBG-417N checks the characters that come before the first slash in the URL.

NBG-417N User’s Guide

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