Using squidGuard for content filtering
Content filtering for the Web can be a messy proposition. A business may need to block only the most objectionable Web sites, while schools may be required by law to follow a more thorough process. Whatever your needs, you can build a solution with only open source pieces: squid, squidGuard, and blacklists.
The squid server acts as an intermediary between a Web browser and Web server. As a proxy, it receives a URL request from the browser, connects to the server on behalf of the browser, downloads content, then provides it to the browser.
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