There is an easy way to get around opendns that I need to block.
I've set opendns on the router and it all works fine, but 8888 4444 in the machine's dns allows the user to circumvent opendns. It's really easy to find a tutorial on this as well (http://www.wikihow.com/Bypass-OpenDNS-Internet-Security)
I work in a school and we lock the machines down using windows group policies - but lots of the kids bring their own machines - which I can't lock down.
Any thoughts on what I can do about this would be REALLY appreciated.
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