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Chapter 8.3. Domain Name System (DNS) > DNS and Name Resolution

DNS and Name Resolution

The DNS name-resolution process can be outlined as follows:

  1. A name resolution service (known as a Resolver) running on a client sends a query to its local DNS server.

    This kind of query, in which only a good resolution or a failure can be returned, is known as a recursive query.

  2. If the local DNS server is unable to resolve the query from its own zone files and cache, it will make queries to other name servers on the behalf of the client Resolver.

    These queries are known as iterative queries.


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