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Standard for interchange of USENET messages (RFC0850) Disclosure Number: IPCOM000004297D
Original Publication Date: 1983-Jun-01
Included in the Prior Art Database: 2000-Sep-13
Document File: 17 page(s) / 43K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

M.R. Horton: AUTHOR


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RFC 850 June 1983

Standard for Interchange of USENET Messages

Mark R. Horton

[ This memo is distributed as an RFC only to make this

information easily accessible to researchers in the ARPA

community. It does not specify an Internet standard. ]

1. Introduction

This document defines the standard format for interchange

of Network News articles among USENET sites. It describes

the format for articles themselves, and gives partial

standards for transmission of news. The news transmission

is not entirely standardized in order to give a good deal

of flexibility to the individual hosts to choose

transmission hardware and software, whether to batch news,

and so on.

There are five sections to this document. Section two

section defines the format. Section three defines the

valid control messages. Section four specifies some valid

transmission methods. Section five describes the overall

news propagation algorithm.

2. Article Format

The primary consideration in choosing an article format is

that it fit in with existing tools as well as possible.

Existing tools include both implementations of mail and

news. (The notesfiles system from the University of

Illinois is considered a news implementation.) A standard

format for mail messages has existed for many years on the

ARPANET, and this format meets most of the needs of

USENET. Since the ARPANET format is extensible,

extensions to meet the additional needs of USENET are

easily made within the ARPANET standard. Therefore, the

rule is adopted that all USENET news articles must be

formatted as valid ARPANET mail messages, according to the

ARPANET standard RFC 822. This standard is more

restrictive than the ARPANET standard, placing additional

requirements on each article and forbidding use of certain

ARPANET features. However, it should always be possible

to use a tool expecting an ARPANET message to process a

news article. In any situation where this standard

conflicts with the ARPANET standard, RFC 822 should be

considered correct and this standard in error.

- 1 -

An example message is included to illustrate the fields.

Relay-Version: version B 2.10 2/13/83; site cbosgd.UUCP

Posting-Version: version B 2.10 2/13/83; site eagle.UUCP

Path: cbosgd!mhuxj!mhuxt!eagle!jerry

From: jerry@eagle.uucp (Jerry Schwarz)

Newsgroups: net.general

Subject: Usenet Etiquette -- Please Read

Message-ID: <642@eagle.UUCP>

Date: Friday, 19-Nov-82 16:14:55 EST


Expires: Saturday, 1-Jan-83 00:00:00 EST

Date-Received: Friday, 19-Nov-82 16:59:30 EST

Organization: Bell Labs, Murray Hill

The body of the article comes here, after a blank line.

Here is an example of a message in the old format (before

the existence of this standard). It is recommended that

implementations also accept articles in this ...