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    • CommentAuthordbaker1
    • CommentTimeAug 20th 2010
     permalink
    We have been using OpenDNS for over 4 years, but have noticed that our teachers can no longer stream video from CBS News, plus a couple of other sites. If we switch to another DNS (google, or our ISP) videos will stream again.

    The ads play while on openDNS, and sometimes the videos work, but will just stop after a while and no-longer play.

    I have tested this, multiple times and openDNS is the problem... I do not want to move away from openDNS, but will have to if I can not get this resolved.
    -Dan
    • CommentAuthorrotblitz
    • CommentTimeAug 20th 2010
     permalink
    Firstly, OpenDNS (same as DNS in general) is not involved in streaming at all, really not. DNS is for name resolution, it is nothing to do with connectivity, speed, ports, protocols, objects, URLs or such things.

    So, if there is a difference in comparison to another DNS service, you can find out this difference by doing manual lookups (e.g. with nslookup or dig) against the domain names in question. They eventually would return different IP addresses then in some cases.

    Even this is not a lot to do with OpenDNS itself, because OpenDNS just returns the IP address information they got fed from the authoritative nameservers.

    What you can do:

    See what the difference between OpenDNS and another DNS service really is, using tools like nslookup, host, or dig. Then traceroute to the different returned IP addresses to identify if your ISP has configured some strange routing around the world for certain IP address ranges.

    Identify the OpenDNS location you're using: http://www.opendns.com/support/article/208
    If this is not the next OpenDNS location, then your ISP may have a routing issue.
    Or, if you're far away from this location it is likely that you get different name resolution results than from a DNS service geographically closer to you. In this case you either can configure your internal DNS server to go to another nearby DNS service for the impacted domains/zones only, or you can construct a hosts file with the geographically adjusted IP address information for these domains.

    Just to exclude that you have blocked domains with OpenDNS, needed to play the videos, visit your Top Domains stats to possibly identify these and add them to the "never block" list. But, you don't see an OpenDNS block page for these video sites, do you? Or don't find the domains blocked in your stats? Then there is definitely no need to whitelist them.

    Last, but not least, this is a user to user forum, therefore you may want to open a support ticket with OpenDNS: http://www.opendns.com/support/contact/
    Thankful People: OpenDNS User
    • CommentAuthormiked
    • CommentTimeAug 20th 2010
     permalink
    What domains have you blocked in your account?

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