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I have a domain that needs to use second level subdomain. I am curious why when I have the @ A record and the blank A record a second level subdomain does not resolve. For example subsubdomain.subdomain.domain.com is not resolving to the root domain records. In this example if I add subdomain A record then that second level domain resolves.

Thanks for any clarification.

EDIT: This is using register.com as the DNS provider.

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    This should actually work. You don't need to have an A resource record for sub.example.com for sub2.sub.example.com to work. Post your zone files.
    – joschi
    Jul 11, 2010 at 6:41
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    It might also be helpful if you told us what DNS software you are running. Don' be stingy with details.
    – John Gardeniers
    Jul 11, 2010 at 7:00
  • @John Gardeniers - I edited my answer, sorry did not think the provider was necessary. I am not running DNS myself using Register.com.
    – Dustin Laine
    Jul 11, 2010 at 17:04
  • in that case if your are having issues you really should contact the provider's support staff first, as they are in a much better position to help you than we are.
    – John Gardeniers
    Jul 11, 2010 at 21:46
  • Ok, so I am taking it that this is not normal behavior of DNS. Make an answer and I will accept.
    – Dustin Laine
    Jul 19, 2010 at 22:36

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if your are having issues you really should contact the provider's support staff first, as they are in a much better position to help you than we are -- from @John Gardeniers

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