ZyXEL NBG-419N Guia Do Utilizador
Chapter 20 Content Filter
NBG-419N User’s Guide
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The following table describes the labels in this screen.
Table 65 Security > Content Filter > Content Filter
LABEL
DESCRIPTION
Trusted IP Setup To enable this feature, type an IP address of any one of the computers
in your network that you want to have as a trusted computer. This
allows the trusted computer to have full access to all features that are
configured to be blocked by content filtering.
allows the trusted computer to have full access to all features that are
configured to be blocked by content filtering.
Leave this field blank to have no trusted computers.
Restrict Web
Features
Features
Select the box(es) to restrict a feature. When you download a page
containing a restricted feature, that part of the web page will appear
blank or grayed out.
containing a restricted feature, that part of the web page will appear
blank or grayed out.
ActiveX
A tool for building dynamic and active Web pages and distributed
object applications. When you visit an ActiveX Web site, ActiveX
controls are downloaded to your browser, where they remain in case
you visit the site again.
object applications. When you visit an ActiveX Web site, ActiveX
controls are downloaded to your browser, where they remain in case
you visit the site again.
Java
A programming language and development environment for building
downloadable Web components or Internet and intranet business
applications of all kinds.
downloadable Web components or Internet and intranet business
applications of all kinds.
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.
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
Keyword
Blocking
The NBG-419N 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.
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.
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.
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.
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.
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