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The NIOS appliance allows you to create an internal root zone for your organization. When the appliance receives a query for DNS data that is not in its cache or authoritative data, it can query an internal root server after querying any specified forwarders. If you do not specify an internal root server and the appliance can access the Internet, it queries the Internet root servers. For information on root name server, see About Root Name Servers.
To create a root zone, create an authoritative forward-mapping zone as described in Creating an Authoritative Forward-Mapping Zone and specify the following:

  • Enter a period (.) in the Name field.
  • Optionally, enter a comment.
  • Select a Grid member as the primary name server for the root zone.

Once created, the root zone automatically becomes the parent of all the zones under the root zone.

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