Browse Prior Art Database

Remote User Telnet service (RFC0818)

IP.com Disclosure Number: IPCOM000003867D
Original Publication Date: 1982-Nov-01
Included in the Prior Art Database: 2019-Feb-14
Document File: 2 page(s) / 3K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

J. Postel: AUTHOR

Related Documents

10.17487/RFC0818: DOI

Abstract

This RFC is the specification of an application protocol. Any host that implements this application level service must follow this protocol.

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 56% of the total text.

Network Working Group J. Postel Request for Comments: 818 ISI November 1982

The Remote User Telnet Service

This RFC is the specification of an application protocol. Any host that implements this application level service must follow this protocol.

This RFC was suggested by Mike Mulligan some months ago when he was at BBN.

In the ARPANET Host-to-Host Network Control Protocol (NCP) and in the Internet Transmission Control Protocol (TCP) well known sockets or ports are used to identify services. The general notion is that there are a few types of services that are distinct and useful enough to use the NCP or TCP demultiplexing mechanism directly.

The most common of these is the Server Telnet which generally speaking defines the network terminal access procedure for a system executive. That is, making a connection to the server Telnet port actually puts the caller in contact with the system executive, for example, the TOPS20 EXEC or the Unix Shell.

On some small hosts there may be very limited functionality and no executive. In such cases it may be useful to designate specific well known ports for specific applications.

This memo specifies that the specific service of User Telnet may be accessed (on hosts that choose to provide it) by opening a connection to port 107 (153 octal). The Telnet Protocol is to be used on the connection from the originating user to the server.

EXAMPLE: REMOTE TELNET SERVICE ON THE BBN TC68K

The TC68K is a Terminal Concentrator based on the Motorola MC68000 microprocessor. It is used at Bolt Beranek & Newman to provide access by terminals to the FiberNet, a local area network.

The custom hardware provides one network connection, sixteen RS232 terminal connections, and a programmable timer.

The software is based on the Micro-Operating System (MOS) using the IP, ICMP, TCP, and Telnet protocols. A user TC-Telnet appli...

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