nntp - An Internet standard protocol that governs the interaction between Network News Transfer Protocol (NNTP) servers (news servers) and NNTP clients (news readers). NNTP is the underlying protocol on which the Usenet Internet news system is built.
NNTP is both a client/server protocol and a server/server protocol. It offers a set of simple text commands that
NNTP connections between clients and servers and between servers and servers use Transmission Control Protocol (TCP) for reliable, guaranteed packet delivery. Clients connecting to servers might require authentication before their NNTP commands are accepted.
NNTP client commands include the following:
NNTP is defined in Request for Comments (RFC) 977.