D-Link DFL-800-AV-12 User Manual - Page 176
Content Filtering Categories, Category 1: Adult Content
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6.3.4. Dynamic Web Content Filtering Chapter 6. Security Mechanisms Example 6.17. Reclassifying a blocked site This example shows how a user may propose a reclassification of a web site if he believes it is wrongly classified. This mechanism is enabled on a per-HTTP ALG level basis. CLI First, create an HTTP Application Layer Gateway (ALG) Object: gw-world:/> add ALG ALG_HTTP content_filtering WebContentFilteringMode=Enable FilteringCategories=SEARCH_SITES AllowReclassification=Yes Then, continue setting up the service object and modifing the NAT rule as we have done in the previous examples. Web Interface First, create an HTTP Application Layer Gateway (ALG) Object: 1. Go to Objects > ALG > Add > HTTP ALG 2. Specify a suitable name for the ALG, eg. content_filtering 3. Click the Web Content Filtering tab 4. Select Enabled in the Mode list 5. In the Blocked Categories list, select Search Sites and click the >> button 6. Check the Allow Reclassification control 7. Click OK Then, continue setting up the service object and modifing the NAT rule as we have done in the previous examples. Dynamic content filtering is now activated for all web traffic from lannet to all-nets and the user is able to propose reclassification of blocked sites. Validate the functionality by following these steps: 1. On a workstation on the lannet network, launch a standard web browser. 2. Try to browse to a search site, for instance www.google.com. 3. If everything is configured correctly, your web browser will present a block page where a dropdown list containing all available categories is included. 4. The user is now able to select a more proper category and propose a reclassification. 6.3.4.1. Content Filtering Categories This section lists all the categories used with Dynamic Content Filtering and describes the purpose of each category. Category 1: Adult Content A web site may be classified under the Adult Content category if its content includes the description or depiction of erotic or sexual acts or sexually oriented material such as pornography. Exceptions to this are web sites that contain information relating to sexuality and sexual health, which may be classified under the Health Sites Category (21). Examples might be: • www.naughtychix.com • www.fullonxxx.com 176