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  2. Google Public DNS - Wikipedia

    en.wikipedia.org/wiki/Google_Public_DNS

    Google Public DNS is a Domain Name System (DNS) service offered to Internet users worldwide by Google. It functions as a recursive name server . Google Public DNS was announced on December 3, 2009, [1] in an effort described as "making the web faster and more secure." [2] [3] As of 2018, it is the largest public DNS service in the world ...

  3. Domain Name System - Wikipedia

    en.wikipedia.org/wiki/Domain_Name_System

    A reverse DNS lookup is a query of the DNS for domain names when the IP address is known. Multiple domain names may be associated with an IP address. The DNS stores IP addresses in the form of domain names as specially formatted names in pointer (PTR) records within the infrastructure top-level domain arpa. For IPv4, the domain is in-addr.arpa.

  4. 1.1.1.1 - Wikipedia

    en.wikipedia.org/wiki/1.1.1.1

    The 1.1.1.1 DNS service operates recursive name servers for public use at the twelve IP addresses listed below. These addresses are mapped to the nearest operational server by anycast routing. The DNS service is also available for Tor clients. Users can set up the service by manually changing their DNS resolvers to the IP addresses below.

  5. Name server - Wikipedia

    en.wikipedia.org/wiki/Name_server

    DNS servers, which are located all over the world, translate domain names into IP addresses, giving them control over which server a user may access via a given domain. Below the root, Internet resources are organized into a hierarchy of domains, administered by the respective registrars and domain name holders.

  6. Reverse DNS lookup - Wikipedia

    en.wikipedia.org/wiki/Reverse_DNS_lookup

    In computer networks, a reverse DNS lookup or reverse DNS resolution ( rDNS) is the querying technique of the Domain Name System (DNS) to determine the domain name associated with an IP address – the reverse of the usual "forward" DNS lookup of an IP address from a domain name. [1] The process of reverse resolving of an IP address uses PTR ...

  7. Internet Assigned Numbers Authority - Wikipedia

    en.wikipedia.org/wiki/Internet_Assigned_Numbers...

    Internet. The Internet Assigned Numbers Authority ( IANA) is a standards organization that oversees global IP address allocation, autonomous system number allocation, root zone management in the Domain Name System (DNS), media types, and other Internet Protocol –related symbols and Internet numbers. [1] [2]

  8. OpenDNS - Wikipedia

    en.wikipedia.org/wiki/OpenDNS

    OpenDNS is an American company providing Domain Name System (DNS) resolution services—with features such as phishing protection, optional content filtering, and DNS lookup in its DNS servers—and a cloud computing security product suite, Umbrella, designed to protect enterprise customers from malware, botnets, phishing, and targeted online attacks.

  9. Microsoft DNS - Wikipedia

    en.wikipedia.org/wiki/Microsoft_DNS

    Microsoft Windows Server operating systems can run the DNS Server service. This is a monolithic DNS server that provides many types of DNS service, including caching, Dynamic DNS update, zone transfer, and DNS notification. DNS notification implements a push mechanism for notifying a select set of secondary servers for a zone when it is updated ...

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