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A newsreader, also known as a news client, is a software application that reads articles on Usenet, either directly from the news server's disks or via the NNTP. The well-known TCP port 119 is reserved for NNTP. Well-known TCP port 433 (NNSP) may be used when doing a bulk
On the Internet, Usenet is transported via the Network News Transfer Protocol (NNTP) on Transmission Control Protocol (TCP) port 119 for standard, unprotected connections, and on TCP port 563 for Secure Sockets Layer (SSL) encrypted connections.
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.
RFC 780 of May 1981 removed all references to FTP and allocated port 57 for TCP and UDP, [15] an allocation that has since been removed by IANA. In November 1981, Postel published RFC 788 "Simple Mail Transfer Protocol". The SMTP standard was developed around the same time as Usenet, a one-to-many communication network with some similarities. [15]
Streams media while downloading; free with Usenet service Claws Mail: GUI: Traditional newsreader Yes [1] No No No No Yes No Free Cross-platform: GPL: Forté Agent: GUI: Combination Yes Yes Yes Yes Yes $29 Windows: Proprietary: Shareware, includes 3 month newsgroup service trial Gnus: Text-based: Traditional newsreader Yes No No No No Yes Yes ...
They use one of two transport layer protocols: the Transmission Control Protocol (TCP) or the User Datagram Protocol (UDP). In the tables below, the "Transport" column indicates which protocol(s) the transfer protocol uses at the transport layer. Some protocols designed to transmit data over UDP also use a TCP port for oversight.
For such applications, protocols like the Real-time Transport Protocol (RTP) operating over the User Datagram Protocol (UDP) are usually recommended instead. [13] TCP is a reliable byte stream delivery service that guarantees that all bytes received will be identical and in the same order as those sent.
Usenet Explorer is a news client for the Microsoft Windows operating system (also fully compatible with the Linux Wine software [citation needed]). It is designed to handle binary and text Usenet posts, and is capable of handling newsgroups as large as hundred million headers [ citation needed ] .