Root name servers contain the root zone file which lists the names and IP addresses of the authoritative name servers for each top-level zone. When a a root name server receives a query for a domain name, it provides at least the names and addresses of the name servers that are authoritative for the top-level zone of the domain name.
You can configure the NIOS appliance to use Internet root name servers or custom root name servers. If you enable recursive queries and the appliance receives a recursive query it cannot resolve locally, it queries specified forwarders (if any) and then queries any root name servers you configure. If you do not specify internal root name servers and the appliance can access the Internet, it queries the Internet root name servers.
You can specify root name servers for the Grid, individual members, and user-defined DNS views. You can specify root name servers for all DNS views except the default view. The default view uses either the member level root name servers (if specified) or the Grid level root name servers.
Every Grid member has a default view. If you want to specify root name servers for a default view, override the Grid root name server setting at the member level and the default view can use the member-level setting.
To specify root name servers for a Grid, member, or DNS view:
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