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Network News Transfer Protocol
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Application Layer — Other
Protocol Overview
Full Name
Network News Transfer Protocol
Abbreviation
NNTP
OSI Layer
Application Layer
Category
Other
Default Port
119, 563
RFC
RFC 3977
About NNTP
Protocol for transporting Usenet news articles between servers and reading clients. Supports article retrieval, posting, and server-to-server news propagation across the Usenet network.
Application Layer
Other
Port 119, 563
Standards Reference
NNTP is defined in RFC 3977, published by the Internet Engineering Task Force (IETF). RFCs are the official standards documents for internet protocols and are freely available for public review.