Domain Name System (DNS)

The domain name system (DNS) maps internet domain names to the internet protocol network addresses they represent and allows websites to use names, rather than difficult-to-remember IP addresses.. See complete definition.

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  • recursive DNS server

    A recursive DNS server is a domain name system server that takes website name or URL (uniform resource locator) requests from users and checks the records attained from authoritative DNS servers for the associated IP address. Continue Reading

  • recursive DNS query

    A recursive DNS query is a request from a client for a website that must be responded to with either the sought response or an error message stating that the site does not exist. Continue Reading

  • iterative DNS query

    An iterative DNS query is a request for a website name or uniform resource locator (URL) that the domain name system (DNS) server responds to with the IP address from its zone file cache, if possible. Continue Reading

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