ComputingComputer SystemsComputer NetworksMessage PassingTransportCommunication NetworksInternet Protocol SuiteNetwork ArchitectureNetwork LayerNetwork ProtocolsTransport LayerConnectionsInternet ProtocolNetwork Protocol ImplementationTransport Layer ProtocolsTransport Protocol Design
NNTP, the Network News Transfer Protocol, has been labelled the most widely implemented elective protocol in the Internet. The growth of the Internet has meant more sites exchanging NNTP data. While the explosive growth in Usenet traffic places demands on all sites, the goal of fast network access puts particular demands on NNTP hosts. InterNetNews is an implementation of the Usenet transport layer designed to address this situation. It replaces the standard UNIX server architecture with a single long-running server that handles all incoming connections. It has proven to be quite successful, providing quick and efficient news transfer. Introduction Usenet is a distributed bulletin board system, built as a logical network on top of other networks and connections. By design, messages resemble standard Internet electronic mail messages as defined in RFC822 [Crocker82]. The Usenet message format is described in RFC1036 [Adams87]. This defines some additional headers. It also limits the v...