Chapter 32 Content Filtering
Table 163 Configuration >
LABEL | DESCRIPTION | |
Allow Web traffic for | When this box is selected, the ZyWALL blocks Web access to | |
trusted web sites only | 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. | |
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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. | |
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Block | ActiveX is a tool for building dynamic and active web pages | |
ActiveX | 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. | |
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| |
Java | Java is a programming language and development | |
| environment for building downloadable Web components or | |
| Internet and intranet business applications of all kinds. | |
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| |
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. | |
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| |
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. | |
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| |
Allow Java/ActiveX/ | When this box is selected, the ZyWALL will permit Java, | |
Cookies/Web proxy to | ActiveX and Cookies from sites on the Trusted Web Sites list | |
trusted web sites | to the LAN. In certain cases, it may be desirable to allow Java, | |
| ActiveX or Cookies from sites that are known and trusted. | |
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| |
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. | |
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| |
Add | Click this to create a new entry. | |
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| |
Edit | Select an entry and click this to be able to modify it. | |
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| |
Remove | Select an entry and click this to delete it. | |
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Trusted Web Site | This column displays the trusted web sites already added. | |
| Enter host names such as | |
| 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”, and so on. You can | |
| also enter just a top level domain. For example, enter .com to | |
| allow all .com domains. | |
| Use up to 63 characters | |
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| |
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. | |
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Add | Click this to create a new entry. | |
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| |
Edit | Select an entry and click this to be able to modify it. | |
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| |
Remove | Select an entry and click this to delete it. | |
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ZyWALL USG 50 User’s Guide |
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