ZyXEL Communications NBG-419N User Manual

 Chapter 21 Content Filter

NBG-419N v2 User’s Guide

Cookies

Used by Web servers to track usage and provide service based on ID. 

Web Proxy

A server that acts as an intermediary between a user and the Internet to provide security, 
administrative control, and caching service. When a proxy server is located on the WAN it is 
possible for LAN users to circumvent content filtering by pointing to this proxy server. 

Enable URL 
Keyword 
Blocking

The Router 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

Security > Content Filter > Content Filter (continued)