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    DNS Caching Problem - How long will it take for sky broadband DNS to update?

    This is a discussion on DNS Caching Problem - How long will it take for sky broadband DNS to update? within the Sky Broadband help forums, part of the Sky Broadband help and support category; Hi, I've posted this on the official sky forum but I'm get t get a response so thought I'd see ...

    1. #1
      braderz31's Avatar
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      DNS Caching Problem - How long will it take for sky broadband DNS to update?

      Hi, I've posted this on the official sky forum but I'm get t get a response so thought I'd see if anyone here has any info. :-)


      I'm experiencing a strange DNS caching problem with Sky Broadband.

      I'm a web developer and 3 days ago I transferred a website to a new hosting provider. When I try and access the website while connected to Sky broadband, it attempts to retrieve the website from the old hosting server.

      It doesn't appear to be a caching issue on my local machine because I've cleared the browser cache, tried different browsers and even flushed the dns locally. Further to this, if I temporarily change my local DNS settings so that it by-passes the Sky DNS and use the Google DNS instead, the website is displayed perfectly.

      The website is also displayed perectly fine when I connect my machine to another internet connection.

      I sent a ping to the website address while connected to Sky Broadband and sure enough its trying to ping the old IP address of the hosting server where the website used to reside.

      This issue isnt just affecting me, some of my customers that would access the website on a regular basis through SKY are also having the same problem.

      I found a similar post here

      Is there a delay in the time it takes for the DNS to update for Sky Broadband or is there some kind of transparent proxy that would be caching the old hosting IP address?

      Many thanks guys


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    3. #2
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      Re: DNS Caching Problem - How long will it take for sky broadband DNS to update?

      If Sky's DNS servers are behaving properly then the maximum time they should cache the old information is whatever value the TTL (Time to Live) on your domain was set to.

      Are you able to provide us a link to your website then I can have a look at what the authoritative servers are returning.

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      Re: DNS Caching Problem - How long will it take for sky broadband DNS to update?

      Thanks for the reply.

      Sure, you can view the site here

      Thanks

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      Re: DNS Caching Problem - How long will it take for sky broadband DNS to update?

      Try http://www.intodns.com


      Your NS records at your DNS servers don't match the ones at the parent servers (Your domain registrar)


      The Parent servers tell me that the DNS information for your domain is found at


      ns2.innovatewebsites.co.uk.


      ns1.innovatewebsites.co.uk.


      However the NS entries in the DNS zone for the domain tell me to goto


      ns2.mainnameserver.com
      ns.mainnameserver.com


      If I ask ns1.innovatewebsites.co.uk about your domain it tells me your website is at 108.174.152.251


      However if I ask ns.mainnameserver.com I get 79.170.40.183


      You need to login to whichever provider you are using for the DNS and change the NS entires in the DNS zone to point at the correct servers, if you are unsure on how to do this try asking your hosting provider as they may be able to help (If they are the ones running DNS for you)
      Last edited by dragon2611; 12-06-13 at 11:25 PM.

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      Re: DNS Caching Problem - How long will it take for sky broadband DNS to update?

      Hey dragon2611 - Thanks so much for finding that and informing me of such a great resource. I've made the changes now so we'll see what happens. Many thanks

      Brad

     

     

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