ZyXEL nbg-4615 사용자 가이드

 Chapter 24 Content Filtering

NBG4615 User’s Guide

The following section contains additional technical information about the NBG4615 
features described in this chapter.

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.

By default, the NBG4615 checks the URL’s domain name or IP address when 
performing keyword blocking.

This means that the NBG4615 checks the characters that come before the first 
slash in the URL.

For example, with the URL 

www.zyxel.com.tw/news/pressroom.php

, content 

filtering only searches for keywords within 

www.zyxel.com.tw

.

Enable URL 
Keyword 
Blocking

The NBG4615 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.

Cancel

Click Cancel to begin configuring this screen afresh

Table 73   Security > Content Filter  (continued)