Port 53 and SKY OnDemand blocking

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booveedoo

December 13, 2013 19:03

Hi. I am blocking port 53 on my router to allow traffic on my LAN to purely use OpenDNS addresses. This obviously does not allow computers on the LAN to change their DNS addresses to public ones i.e Google 1.1.1.1 etc and thus bypass OpenDNS. All works well.Question is though, when I do block this port, my SKY OnDeand fails because it obviously can`t route out correctly to the SKY servers. What filter do I need to configure (or re-configure) in OpenDNS to allow traffic through to the Sky servers? Thanks!

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  rotblitz December 15, 2013 00:06

  Isn't this Sky On Demand a special box in your network? It seems it has different DNS resolver addresses configured which you block by your router. I can see two options here:

  1. Configure the network settings of the Sky box to use the router's IP address as the only DNS resolver address.
  2. Configure an exception rule for the Sky box DNS queries on the router, i.e. allow port 53 passthrough for the Sky box only.

  So, nothing to configure in OpenDNS at this point, but in your Sky box or your router.  However, if you find that you have domains blocked by your OpenDNS settings which are needed for Sky to operate, you'll want to unblock those, of course.

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  gbee7k February 17, 2016 16:17

  1: to configure teh netowrk settings of teh sky box,

  routers ip address,

  where is the exception rule on the sky boxe  allow port 53.

  Roblitz:

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  rotblitz February 17, 2016 18:05

  This should be documented in the manufacturer's manual.  I don't have such a router.

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