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  2. 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]

  3. nslookup - Wikipedia

    en.wikipedia.org/wiki/Nslookup

    nslookup is a member of the BIND name server software. Andrew Cherenson created nslookup as a class project at UC Berkeley in 1986 and it first shipped in 4.3-Tahoe BSD [1] In the development of BIND 9, the Internet Systems Consortium planned to deprecate nslookup in favor of host and dig.

  4. Reverse lookup - Wikipedia

    en.wikipedia.org/wiki/Reverse_lookup

    Reverse lookup is a procedure of using a value to retrieve a unique key in an associative array. [1] Applications of reverse lookup include reverse DNS lookup, which provides the domain name associated with a particular IP address, [2] reverse telephone directory, which provides the name of the entity associated with a particular telephone ...

  5. AOL Search FAQs - AOL Help

    help.aol.com/articles/aol-search-faqs

    ip: Finds sites that are hosted by a specific IP address. The IP address must be a dotted quad address. Type the ip: keyword, followed by the IP address of the website. Type IP:207.46.249.252. language: Returns webpages for a specific language. Specify the language code directly after the language: keyword.

  6. 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.

  7. List of DNS record types - Wikipedia

    en.wikipedia.org/wiki/List_of_DNS_record_types

    DNAME: 39 RFC 6672 Delegation name record: Alias for a name and all its subnames, unlike CNAME, which is an alias for only the exact name. Like a CNAME record, the DNS lookup will continue by retrying the lookup with the new name.

  8. CNAME record - Wikipedia

    en.wikipedia.org/wiki/CNAME_record

    A Canonical Name (CNAME) record is a type of resource record in the Domain Name System (DNS) that maps one domain name (an alias) to another (the canonical name). [1]This can prove convenient when running multiple services (like an FTP server and a web server, each running on different ports) from a single IP address.

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