Unified Security Gateway User's Guide

Chapter 31 Content Filter Screens
ZyWALL USG 1000 User’s Guide
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Allow Web traffic for trusted
web sites only
When this box is selected, the ZyWALL blocks Web access to sites that
are not on the Trusted Web Sites list. If they are chosen carefully, this
is the most effective way to block objectionable material.
Restricted Web Features Select the check 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.
Block
ActiveX
ActiveX is 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.
Java Java is a programming language and development environment for
building downloadable Web components or Internet and intranet
business applications of all kinds.
Cookies Cookies are files stored on a computer’s hard drive. Some web servers
use them 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.
Allow Java/ActiveX/Cookies/
Web proxy to trusted web
sites
When this box is selected, the ZyWALL will permit Java, ActiveX and
Cookies from sites on the Trusted Web Sites list to the LAN. In certain
cases, it may be desirable to allow Java, ActiveX or Cookies from sites
that are known and trusted.
Trusted Web Sites These are sites that you want to allow access to, regardless of their
content rating, can be allowed by adding them to this list. You can enter
up to 256 entries.
Add Trusted Web Site Enter host names such as www.good-site.com into this text field. Do
not enter the complete URL of the site – that is, do not include “http://”.
All subdomains are allowed. For example, entering “zyxel.com” also
allows “www.zyxel.com”, “partner.zyxel.com”, “press.zyxel.com”, etc.
Use up to 63 characters (0-9a-z-). The casing does not matter.
Trusted Web Sites This list displays the trusted web sites already added.
Add Click this button when you have finished adding the host name in the
text field above.
Delete Select a web site name from the Trusted Web Sites list, and then click
this button to delete it from that list.
Forbidden Web Site List Sites that you want to block access to, regardless of their content
rating, can be allowed by adding them to this list. You can enter up to
256 entries.
Add Forbidden Web Site Enter host names such as www.bad-site.com into this text field. Do not
enter the complete URL of the site – that is, do not include “http://”. All
subdomains are also blocked. For example, entering “bad-site.com”
also blocks “www.bad-site.com”, “partner.bad-site.com”, “press.bad-
site.com”, etc.
Use up to 63 characters (0-9a-z-). The casing does not matter.
Forbidden Web Sites This list displays the forbidden web sites already added.
Add Click this button when you have finished adding the host name in the
text field above.
Delete Select a web site name from the Forbidden Web Sites list, and then
click this button to delete it from that list.
Table 150 Anti-X > Content Filter > Filter Profile > Customization (continued)
LABEL DESCRIPTION