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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. Direct numerical simulation - Wikipedia

    en.wikipedia.org/wiki/Direct_numerical_simulation

    Direct numerical simulation. A direct numerical simulation ( DNS) [1] [2] is a simulation in computational fluid dynamics (CFD) in which the Navier–Stokes equations are numerically solved without any turbulence model. This means that the whole range of spatial and temporal scales of the turbulence must be resolved.

  4. 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.

  5. Domain Name System Security Extensions - Wikipedia

    en.wikipedia.org/wiki/Domain_Name_System...

    The Domain Name System Security Extensions ( DNSSEC) are a suite of extension specifications by the Internet Engineering Task Force (IETF) for securing data exchanged in the Domain Name System ( DNS) in Internet Protocol ( IP) networks. The protocol provides cryptographic authentication of data, authenticated denial of existence, and data ...

  6. Reverse DNS lookup - Wikipedia

    en.wikipedia.org/wiki/Reverse_DNS_lookup

    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 ...

  7. Network performance - Wikipedia

    en.wikipedia.org/wiki/Network_performance

    Network performance. Network performance refers to measures of service quality of a network as seen by the customer. There are many different ways to measure the performance of a network, as each network is different in nature and design. Performance can also be modeled and simulated instead of measured; one example of this is using state ...

  8. TXT record - Wikipedia

    en.wikipedia.org/wiki/TXT_record

    v. t. e. A TXT record (short for text record) is a type of resource record in the Domain Name System (DNS) used to provide the ability to associate arbitrary text with a host or other name, such as human readable information about a server, network, data center, or other accounting information. [1]

  9. Hop (networking) - Wikipedia

    en.wikipedia.org/wiki/Hop_(networking)

    The hop count between the computers in this case is 2. In wired computer networking, including the Internet and wireless mesh network ( mesh networking ), a hop occurs when a packet is passed from one network segment to the next. Data packets pass through routers as they travel between source and destination. The hop count refers to the number ...