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This discussion has been inactive for longer than 30 days, and is thus closed.
    • CommentAuthorleine
    • CommentTimeJan 24th 2012
     permalink
    At my school the students bring their own laptops and have access to the internet through our wireless network. The firewall ensures that no other DNS than OpenDNS is allowed.Facebook is blocked in our OpenDNS setup.
    And still the students manage to get through to Facebook.
    I think they have modified their local hosts file, so they don't need any DNS for Facebook.
    Is there any way for me to configure OpenDNS to stop this? If no - any other ideas?
    Thanks
    /Peter
  1.  permalink
    "Is there any way for me to configure OpenDNS to stop this?"

    No, OpenDNS cannot control people's computers.

    You have to have a much more flexible and restrictive network if you hope to control users who are administrators on their own machines. If you are just looking to block Facebook or a few sites, blocking the IP addresses in the router firewall would do it. If you want to do this for many sites, keeping up might become cumbersome, and you'd need to begin relying on somewhat more complex or expensive network controls.

    The three IPs listed as A records here should help.
    http://www.robtex.com/dns/facebook.com.html#records
    http://www.robtex.com/dns/fbcdn.com.html#records

This discussion has been inactive for longer than 30 days, and is thus closed.