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  1. #1
    Untangler ecold's Avatar
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    Nov 2008
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    Angry Protocol blocker preventing DNS lookups

    I am seeing DNS lookups classified as everything from AIM to Battlefield 2. I have been having numerous networking problems lately and now I am seeing on Untangle that lookups are being blocked. Any help would be greatly appreciated as I don't want to turn off the Protocol blocker.

  2. #2
    Untangle Junkie dmorris's Avatar
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    Nov 2006
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    San Mateo, CA
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    13,184

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    I would encourage you not to just click block on all the protocols you don't want.

    protocol control uses signatures and thus is going to have overmatches (and misses).
    I would set things to log that you are interested in and then block as necessary.

    Unless you have an issue with users playing battlefield 1492 - I certainly would not set it to block.

    also, typically DNS lookups aren't scanned because they go *to* untangle (not through it), but if you're using another DNS server you can setup a different policy for DNS traffic to that server.
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  3. #3
    Untangler ecold's Avatar
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    Nov 2008
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    Can you elaborate on this statement?
    "typically DNS lookups aren't scanned because they go *to* untangle (not through it)"
    Are you saying that DNS lookups for all traffic are done by Untangle or did I just read that wrong?

    We do have a group of users that have admin rights on their laptops and do play stuff like Battlefield but I see it right now on (DNS queries) showing as AIM and Gnutella, which are forbidden and must be blocked. There are others as well.
    Should I setup a policy for anything on server destination port 53 to be allowed?

    Thanks for your help.

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