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A large reason for certain sites being blocked is the filters and categorizes that are set in place to automatically block sites. However, one problem that arises with filters is a broad category, which can cause sites with no correlation. Many filters will block any site that has even the smallest
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The DNS filtering happens at the domain resolution layer of the
Internet and does not allow the IP address of an obscene or harmful website to be discovered. There are multiple paid products that perform such work, but many schools are leveraging free solutions to filter non-safe sites.
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systems that provide them with greater control over which sites are allowed and which are blocked. Schools will typically block social media websites, games, pornography, other distracting websites, websites that harm academic integrity, websites that bypass web filtering, etc.
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blocks students from inappropriate and distracting content across the web, while allowing sites that are selected by school administrators. Rather than simply blocking off large portions of the
Internet, many schools utilize customizable
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correlation with the keywords or themes present in said filter and unfortunately, that can prevent students from using and accessing legitimate sites, whether for school, or personal use.
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The FCC and CIPA do not specify how the filtering needs to be done, so most schools are using a combination of DNS, browser and firewall-based filtering.
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255:(PhD dissertation). University of Central Florida.
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