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From the network in our office, some websites are not getting resolved to their proper IP addresses. I guess it is a problem with our DNS server because, when I changed it to Google's public DNS, I was able to access all the websites. What is the solution?

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  • welcome to Information Security - but why are you asking this question here? Please see the FAQ - this site is for security questions.
    – AviD
    Aug 15, 2011 at 21:18
  • This question needs much more detail if we're to offer you any insight.
    – joeqwerty
    Aug 15, 2011 at 21:21
  • If you could tell me what details, I'll give it to you. I am sorry I am new here.
    – Brahadeesh
    Aug 15, 2011 at 21:25
  • How about: What DNS server are you running internally? How is it configured for forwarders and/or root hints? What is the configuration on the clients? What are the clients; Windows, Linux, etc. ?
    – joeqwerty
    Aug 15, 2011 at 21:27
  • Operating system, DNS software, configured forwarders, local zones, DNS configuration, network infrastructure, possible firewalls, ... . If you think something else could be valuable don't hesitate to provide this, too.
    – mailq
    Aug 15, 2011 at 21:30

2 Answers 2

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Sounds like you have created the a-records/domain on your internal DNS servers. Try doing start -> run -> nslookup

Server dnsserver1

Mysite.com

Do all DNS servers resolve the website to the same IP address? Check your hosts file. Are you using correct DNS forwarders or Root servers? Properties on the DNS servers...

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  • I'll ask my admin guy to look through this. Thank you.
    – Brahadeesh
    Aug 15, 2011 at 21:39
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You may want to look at changing the name server for your network (e.g. at the router). I see this issue regularly with the DNS servers of a certain ISP with a name that rhymes with Vindspream. ;-)

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  • Could you give me a link where there are step by step instructions on how to do this ? Am a newbie.
    – Brahadeesh
    Aug 15, 2011 at 21:32
  • If the problem is with the ISP name servers, then you want to lookup the make and model of your router with keywords like "change DNS server" etc. You may prefer contacting the ISP support and they should be able to step you through this, assuming you can reach a human being by phone. Aug 15, 2011 at 21:36
  • Thank you, will do that, though I think the sarcasm is unwarranted.
    – Brahadeesh
    Aug 15, 2011 at 21:38
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    The sarcasm was directed towards the support line. It is often difficult to reach a human being when calling for support. Not directed towards you my friend. :-) Aug 15, 2011 at 21:52
  • Oh. sorry then. Yeah they are difficult to reach :)
    – Brahadeesh
    Aug 15, 2011 at 21:55

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