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.
sub.example.com
forsub2.sub.example.com
to work. Post your zone files.