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| Chapter 31 Content Filtering |
| Table 175 | |
| LABEL | DESCRIPTION |
| Java | Java is a programming language and development environment for |
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| building downloadable Web components or Internet and intranet |
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| business applications of all kinds. |
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| Cookies | Cookies are files stored on a computer’s hard drive. Some web servers |
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| 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 |
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| provide security, administrative control, and caching service. When a |
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| proxy server is located on the WAN it is possible for LAN users to |
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| circumvent content filtering by pointing to this proxy server. |
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| Allow Java/ActiveX/Cookies/ | When this box is selected, the ZyWALL will permit Java, ActiveX and |
| Web proxy to trusted web | Cookies from sites on the Trusted Web Sites list to the LAN. In certain |
| sites | cases, it may be desirable to allow Java, ActiveX or Cookies from sites |
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| 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 |
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| content rating, can be allowed by adding them to this list. You can enter |
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| up to 256 entries. |
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| Add Trusted Web Site | Enter host names such as |
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| not enter the complete URL of the site – that is, do not include “http://”. |
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| All subdomains are allowed. For example, entering “zyxel.com” also |
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| allows “www.zyxel.com”, “partner.zyxel.com”, “press.zyxel.com”, etc. |
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| Use up to 63 characters |
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| Trusted Web Sites | This list displays the trusted web sites already added. |
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| Add | Click this button when you have finished adding the host name in the |
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| text field above. |
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| Delete | Select a web site name from the Trusted Web Sites list, and then click |
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| this button to delete it from that list. |
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| Forbidden Web Site List | Sites that you want to block access to, regardless of their content |
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| rating, can be allowed by adding them to this list. You can enter up to |
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| 256 entries. |
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| Add Forbidden Web Site | Enter host names such as |
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| enter the complete URL of the site – that is, do not include “http://”. All |
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| subdomains are also blocked. For example, entering |
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| also blocks |
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| site.com”, etc. |
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| Use up to 63 characters |
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| Forbidden Web Sites | This list displays the forbidden web sites already added. |
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| Add | Click this button when you have finished adding the host name in the |
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| text field above. |
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| Delete | Select a web site name from the Forbidden Web Sites list, and then |
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| click this button to delete it from that list. |
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| Blocked URL Keywords | This section allows you to block Web sites with URLs that contain |
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| certain keywords in the domain name or IP address. |
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| Add Blocked URL Keyword | Enter a keyword or a numerical IP address to block. You can also enter |
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| a numerical IP address. |
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| Use up to 63 |
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| _!~*'()%,). For example enter Bad_Site to block access to any web |
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| page that includes the exact phrase Bad_Site. This does not block |
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| access to web pages that only include part of the phrase (such as Bad |
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| for example). |
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| Blocked URL Keywords | This list displays the keywords already added. |
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| 545 |
ZyWALL USG 100/200 Series User’s Guide | |
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