GateSentry : A free web filtering proxy server
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Proxy server - Wikipedia
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GitHub - andybalholm/redwood: Web content filter that runs as an HTTP proxy
PfSense Web Filter - Filter HTTP(S) with SquidGuard | Open School Solutions
OPNsense® a true open source security platform and more - OPNsense® is a true open source firewall and more
PfSense Web Filter - Filter HTTP(S) with SquidGuard | Open School Solutions
