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  1.  permalink
    this is an nslookup result from my isp dns.... (and is correct)

    ** server can't find NXDOMAIN

    This is an nslookup against the opendns dns server and it returns a bogus address which belongs to opendns. This is not what i would expect.

    root@pcmarpxy : /etc: 04:06 PM:

    Non-authoritative answer:
    • CommentAuthorezln
    • CommentTimeOct 3rd 2008
    When you try issue an HTTP request to a bogus domain, opendns will display its opendns guide portal page. In order to do that, you have to actually get an HTTP reply from opendns, which means that your bogus name has to resolve to an opendns http server. I suspect they do this to fund the business with the ads from the page, since the service is free.

    The one thing I'd like to know is how to turn this off, so that the domain does not resolve. I've noticed that my ISP does the same thing now too, and I expect this to be the new trend unfortunately.
    • CommentAuthorrotblitz
    • CommentTimeOct 3rd 2008 edited
    You are right, DNS queries, which normally result in NXDOMAIN, are redirected to and from there to
    And yes, there are ways to change this (locally), but I cannot describe it here, because OpenDNS staff tend to remove such hints with the argument "Using ... can cause unpredictable results and is not recommended"...

    Edit: Oh, bhu73, you want to get rid of this for internal sites only?
    Well, this is a problem of DNS taking priority over NetBIOS.
    See here: and many others.
    (Using the forum search function really helps, believe me!)
  2.  permalink
    solved it by configuring my dns to forward requests for these domains to another dns

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