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  2. Domain Name System - Wikipedia

    en.wikipedia.org/wiki/Domain_Name_System

    The Domain Name System ( DNS) is a hierarchical and distributed name service that provides a naming system for computers, services, and other resources in the Internet or other Internet Protocol (IP) networks. It associates various information with domain names (identification strings) assigned to each of the associated entities.

  3. List of TCP and UDP port numbers - Wikipedia

    en.wikipedia.org/wiki/List_of_TCP_and_UDP_port...

    Despite this port being assigned by IANA, the service is meant to work on SPP (ancestor of IPX/SPX), instead of TCP/IP. 53: Yes: Domain Name System (DNS) 54: Assigned: Xerox Network Systems (XNS) Clearinghouse (Name Server). Despite this port being assigned by IANA, the service is meant to work on SPP (ancestor of IPX/SPX), instead of TCP/IP. 55

  4. Amazon Route 53 - Wikipedia

    en.wikipedia.org/wiki/Amazon_Route_53

    Amazon Route 53. Amazon Route 53 ( Route 53) is a scalable and highly available Domain Name System (DNS) service. Released on 5 December 2010 (13 years ago), [1] it is part of Amazon.com 's cloud computing platform, Amazon Web Services (AWS). The name is a possible reference to U.S. Routes, [2] and "53" is a reference to the TCP/UDP port 53 ...

  5. DNS over HTTPS - Wikipedia

    en.wikipedia.org/wiki/DNS_over_HTTPS

    DNS over HTTPS (DoH) is a protocol for performing remote Domain Name System (DNS) resolution via the HTTPS protocol. A goal of the method is to increase user privacy and security by preventing eavesdropping and manipulation of DNS data by man-in-the-middle attacks [1] by using the HTTPS protocol to encrypt the data between the DoH client and ...

  6. Top-level domain - Wikipedia

    en.wikipedia.org/wiki/Top-level_domain

    A top-level domain ( TLD) is one of the domains at the highest level in the hierarchical Domain Name System of the Internet after the root domain. [9] The top-level domain names are installed in the root zone of the name space. For all domains in lower levels, it is the last part of the domain name, that is, the last non-empty label of a fully ...

  7. DNS over TLS - Wikipedia

    en.wikipedia.org/wiki/DNS_over_TLS

    DNS over TLS (DoT) is a network security protocol for encrypting and wrapping Domain Name System (DNS) queries and answers via the Transport Layer Security (TLS) protocol. The goal of the method is to increase user privacy and security by preventing eavesdropping and manipulation of DNS data via man-in-the-middle attacks .

  8. 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 ...

  9. List of DNS record types - Wikipedia

    en.wikipedia.org/wiki/List_of_DNS_record_types

    Address record. Returns a 32-bit IPv4 address, most commonly used to map hostnames to an IP address of the host, but it is also used for DNSBLs, storing subnet masks in RFC 1101, etc. AAAA. 28. RFC 3596 [2] IPv6 address record. Returns a 128-bit IPv6 address, most commonly used to map hostnames to an IP address of the host.