Chapter 31 Content Filtering
Table 174
LABEL | DESCRIPTION |
Unrated Web Pages | Select Block to prevent users from accessing web pages that the |
| external web filtering service has not categorized. |
| When the external database content filtering blocks access to a web |
| page, it displays the denied access message that you configured in the |
| Content Filter General screen along with the category of the blocked |
| web page. |
| Select Log to record attempts to access web pages that are not |
| categorized. |
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When Content Filter | Select Block to block access to any requested web page if the external |
Category Server Is | content filtering database is unavailable. The following are possible |
Unavailable | causes: |
| There is no response from the external content filtering server within the |
| time period specified in the Content Filter Server Unavailable Timeout |
| field. |
| The ZyWALL is not able to resolve the domain name of the external |
| content filtering database. |
| There is an error response from the external content filtering database. |
| This can be caused by an expired content filtering registration (External |
| content filtering’s license key is invalid”). |
| Select Log to record attempts to access web pages that occur when the |
| external content filtering database is unavailable. |
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Content Filter Category | Specify a number of seconds (1 to 60) for the ZyWALL to wait for a |
Service Timeout | response from the external content filtering server. If there is still no |
| response by the time this period expires, the ZyWALL blocks or allows |
| access to the requested web page based on the setting in the Block |
| When Content Filter Server Is Unavailable field. |
| This setting applies to all of your content filtering profiles. |
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Select Categories |
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Advanced/Basic | Click Advanced to see an expanded list of categories, or click Basic to |
| see a smaller list. |
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Select All Categories | Select this check box to restrict access to all site categories listed below. |
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Clear All Categories | Select this check box to clear the selected categories below. |
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Adult/Mature Content | Selecting this category excludes pages that contain material of adult |
| nature that does not necessarily contain excessive violence, sexual |
| content, or nudity. These pages include very profane or vulgar content |
| and pages that are not appropriate for children. |
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Pornography | Selecting this category excludes pages that contain sexually explicit |
| material for the purpose of arousing a sexual or prurient interest. |
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|
Sex Education | Selecting this category excludes pages that provide graphic information |
| (sometimes graphic) on reproduction, sexual development, safe sex |
| practices, sexuality, birth control, and sexual development. It also |
| includes pages that offer tips for better sex as well as products used for |
| sexual enhancement. |
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|
Intimate Apparel/Swimsuit | Selecting this category excludes pages that contain images or offer the |
| sale of swimsuits or intimate apparel or other types of suggestive |
| clothing. It does not include pages selling undergarments as a |
| subsection of other products offered. |
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|
Nudity | Selecting this category excludes pages containing nude or seminude |
| depictions of the human body. These depictions are not necessarily |
| sexual in intent or effect, but may include pages containing nude |
| paintings or photo galleries of artistic nature. This category also includes |
| nudist or naturist pages that contain pictures of nude individuals. |
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ZyWALL USG 100/200 Series User’s Guide |
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