What is DNS relay within a router and what is its function
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What is DNS Relay Within a Router and What is Its Function
BoLaFish
11:58 pm on December 29, 2009 |
Answers: 1
Tags: dns (11), function (49), relay, router (12)
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BoLaFish 11:58 pm on December 29, 2009
A normal DNS server maintains it’s own records. When you query it, it attemps to resolve the query locally, if it can not find a matching entry, it will forward the query to the next upstream DNS server (known as forwarders). A DNS forwarding server (or RELAY) takes the request and paases it to the DNS it has configured as a forwarder (without trying to resolve it, because it doesn’t have a local database). It recieves the answer from the upstream DNS server and passes it back to the client. As far as the client is concerned, the DNS RELAY has answered the query.