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  2. Reverse DNS lookup - Wikipedia

    en.wikipedia.org/wiki/Reverse_DNS_lookup

    Reverse DNS lookups for IPv6 addresses use the special domain ip6.arpa (previously ip6.int [4]). An IPv6 address appears as a name in this domain as a sequence of nibbles in reverse order, represented as hexadecimal digits as subdomains.

  3. IPv6 address - Wikipedia

    en.wikipedia.org/wiki/IPv6_address

    For reverse lookup the IETF reserved the domain ip6.arpa, where the name space is hierarchically divided by the 1-digit hexadecimal representation of nibble units (4 bits) of the IPv6 address. As in IPv4, each host is represented in the DNS by two DNS records: an address record and a reverse mapping pointer record.

  4. .arpa - Wikipedia

    en.wikipedia.org/wiki/.arpa

    The domain in-addr.arpa had been installed for reverse DNS lookup of IP addresses. [5] Originally, the IETF intended that new infrastructure databases would be created in the top-level domain int. In May 2000, this policy was reversed and it was decided that the top-level domain int should be restricted to use by international organizations. [6]

  5. IPv6 - Wikipedia

    en.wikipedia.org/wiki/IPv6

    A significant portion of this IPv6 traffic was generated through their high energy physics collaboration with CERN, which relies entirely on IPv6. [75] The Domain Name System (DNS) has supported IPv6 since 2008. In the same year, IPv6 was first used in a major world event during the Beijing 2008 Summer Olympics.

  6. List of DNS record types - Wikipedia

    en.wikipedia.org/wiki/List_of_DNS_record_types

    Defined as part of early IPv6 but downgraded to experimental by RFC 3363; later downgraded to historic by RFC 6563. NXT 30 RFC 2065 RFC 3755 Part of the first version of DNSSEC (RFC 2065). NXT was obsoleted by DNSSEC updates (RFC 3755). At the same time, the domain of applicability for KEY and SIG was also limited to not include DNSSEC use. KEY ...

  7. Domain Name System - Wikipedia

    en.wikipedia.org/wiki/Domain_Name_System

    For IPv4, the domain is in-addr.arpa. For IPv6, the reverse lookup domain is ip6.arpa. The IP address is represented as a name in reverse-ordered octet representation for IPv4, and reverse-ordered nibble representation for IPv6.

  8. American Registry for Internet Numbers - Wikipedia

    en.wikipedia.org/wiki/American_Registry_for...

    ARIN manages the distribution of Internet number resources, including IPv4 and IPv6 address space and AS numbers. ARIN opened for business on December 22, 1997 [1] after incorporating on April 18, 1997. [2] ARIN is a nonprofit corporation with headquarters in Chantilly, Virginia, United States. [3] [4]

  9. Internet Assigned Numbers Authority - Wikipedia

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

    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.

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