A DNS server on one network can be configured to forward queries to a DNS server on another network without having to query DNS servers on the Internet. Conditional forwarding is used to control where a DNS server forwards queries for a specific domain. Use conditional forwarders to forward queries for specific domain names to a specific DNS server, this reduces recursive DNS traffic.
When they are not for your DNS resolution, root hints are a last resort. Generally, the root DNS server doesn't have a better speed of performing query resolution directly. This is why a recommendation to use forwarding is usually accompanied by a qualification of there being an expensive.
When they are not for your DNS resolution, root hints are a last resort. Generally, the root DNS server doesn't have a better speed of performing query resolution directly. This is why a recommendation to use forwarding is usually accompanied by a qualification of there being an expensive.
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