enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Link-Local Multicast Name Resolution - Wikipedia

    en.wikipedia.org/wiki/Link-Local_Multicast_Name...

    The Link-Local Multicast Name Resolution (LLMNR) is a protocol based on the Domain Name System (DNS) packet format that allows both IPv4 and IPv6 hosts to perform name resolution for hosts on the same local link.

  3. QUIC - Wikipedia

    en.wikipedia.org/wiki/QUIC

    One concern about the move from TCP to UDP is that TCP is widely adopted and many of the "middleboxes" in the Internet infrastructure are tuned for TCP and rate-limit or even block UDP. Google carried out a number of exploratory experiments to characterize this and found that only a small number of connections were blocked in this manner. [3]

  4. 1.1.1.1 - Wikipedia

    en.wikipedia.org/wiki/1.1.1.1

    1.1.1.1 is a free Domain Name System (DNS) service by the American company Cloudflare in partnership with APNIC. [ 7 ] [ needs update ] The service functions as a recursive name server , providing domain name resolution for any host on the Internet .

  5. DNS zone transfer - Wikipedia

    en.wikipedia.org/wiki/DNS_zone_transfer

    The actual data transfer process begins by the client sending a query (opcode 0) with the special query type AXFR (value 252) over the TCP connection to the server. Although DNS technically supports AXFR over User Datagram Protocol (UDP), it is considered not acceptable due to the risk of lost, or spoofed packets.

  6. Domain Name System - Wikipedia

    en.wikipedia.org/wiki/Domain_Name_System

    When the length of the answer exceeds 512 bytes and both client and server support Extension Mechanisms for DNS (EDNS), larger UDP packets may be used. [41] Use of DNS over UDP is limited by, among other things, its lack of transport-layer encryption, authentication, reliable delivery, and message length.

  7. STUN - Wikipedia

    en.wikipedia.org/wiki/STUN

    An application may automatically determine a suitable STUN server for communications with a particular peer by querying the Domain Name System (DNS) for the stun (for UDP) or stuns (for TCP/TLS) server resource record, e.g., _stun._udp.example.com. The standard listening port number for a STUN server is 3478 for UDP and TCP, and 5349 for TLS.

  8. List of TCP and UDP port numbers - Wikipedia

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

    This is a list of TCP and UDP port numbers used by protocols for operation of network applications. The Transmission Control Protocol (TCP) and the User Datagram Protocol (UDP) only need one port for bidirectional traffic. TCP usually uses port numbers that match the services of the corresponding UDP implementations, if they exist, and vice versa.

  9. Explicit Congestion Notification - Wikipedia

    en.wikipedia.org/wiki/Explicit_Congestion...

    When an endpoint receives a TCP segment with the ECE bit it reduces its congestion window as for a packet drop. It then acknowledges the congestion indication by sending a segment with the CWR bit set. A node keeps transmitting TCP segments with the ECE bit set until it receives a segment with the CWR bit set.