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  2. List of TCP and UDP port numbers - Wikipedia

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

    The port numbers in the range from 0 to 1023 (0 to 2 10 − 1) are the well-known ports or system ports. They are used by system processes that provide widely used types of network services.

  3. Domain Name System - Wikipedia

    en.wikipedia.org/wiki/Domain_Name_System

    An often-used analogy to explain the DNS is that it serves as the phone book for the Internet by translating human-friendly computer hostnames into IP addresses. For example, the hostname www.example.com within the domain name example.com translates to the addresses 93.184.216.34 ( IPv4 ) and 2606:2800:220:1:248:1893:25c8:1946 ( IPv6 ).

  4. Port (computer networking) - Wikipedia

    en.wikipedia.org/wiki/Port_(computer_networking)

    In computer networking, a port or port number is a number assigned to uniquely identify a connection endpoint and to direct data to a specific service. At the software level, within an operating system, a port is a logical construct that identifies a specific process or a type of network service. A port at the software level is identified for ...

  5. Dynamic Host Configuration Protocol - Wikipedia

    en.wikipedia.org/wiki/Dynamic_Host_Configuration...

    It is implemented with two UDP port numbers for its operations which are the same as for the bootstrap protocol . The server listens on UDP port number 67, and the client listens on UDP port number 68. DHCP operations fall into four phases: server discovery, IP lease offer, IP lease request, and IP lease acknowledgement.

  6. 53 (number) - Wikipedia

    en.wikipedia.org/wiki/53_(number)

    The number of bytes in an Asynchronous Transfer Mode packet. UDP and TCP port number for the Domain Name System protocol. 53-TET (53 tone, equal temperament) is a musical temperament that has a fifth that is closer to pure than our current system. 53 More Things To Do In Zero Gravity is a fictional book mentioned in The Hitchhiker's Guide to ...

  7. Transmission Control Protocol - Wikipedia

    en.wikipedia.org/wiki/Transmission_Control_Protocol

    Identifies the receiving port. Sequence number (32 bits) Has a dual role: If the SYN flag is set (1), then this is the initial sequence number. The sequence number of the actual first data byte and the acknowledged number in the corresponding ACK are then this sequence number plus 1.

  8. 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 ...

  9. Link-Local Multicast Name Resolution - Wikipedia

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

    t. e. 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. It is included in Windows Vista, Windows Server 2008, Windows 7, Windows 8, Windows 10. [1]