Browse Prior Art Database

Internet Kermit Service (RFC2839)

IP.com Disclosure Number: IPCOM000003438D
Original Publication Date: 2000-May-01
Included in the Prior Art Database: 2000-Sep-13
Document File: 16 page(s) / 40K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

F. da Cruz: AUTHOR [+2]

Abstract

This document describes a new file transfer service for the Internet based on Telnet Protocol for option negotiation and Kermit Protocol for file transfer and management. The Internet Kermit Service provides access to both authenticated and anonymous users. The use of Kermit protocol over a Telnet connection provides several advantages over FTP, including easy traversal of firewalls, transfers over multiple transports, and security via a combination of supported Telnet authentication and encryption option negotiations, plus significant functional benefits. While this document describes a new service for the Internet, the clients for this service already exist on most platforms in the form of Telnet clients that support the Kermit file transfer protocol. These clients are available not only from Columbia University's Kermit Project but also numerous third parties.

This text was extracted from a ASCII document.
This is the abbreviated version, containing approximately 7% of the total text.

Network Working Group F. da Cruz

Request for Comments: 2839 J. Altman

Category: Informational Columbia University

May 2000

Internet Kermit Service

Status of this Memo

This memo provides information for the Internet community. It does

not specify an Internet standard of any kind. Distribution of this

memo is unlimited.

Copyright Notice

Copyright (C) The Internet Society (2000). All Rights Reserved.

ABSTRACT

This document describes a new file transfer service for the Internet

based on Telnet Protocol for option negotiation and Kermit Protocol

for file transfer and management. The Internet Kermit Service

provides access to both authenticated and anonymous users. The use

of Kermit protocol over a Telnet connection provides several

advantages over FTP, including easy traversal of firewalls, transfers

over multiple transports, and security via a combination of supported

Telnet authentication and encryption option negotiations, plus

significant functional benefits. While this document describes a new

service for the Internet, the clients for this service already exist

on most platforms in the form of Telnet clients that support the

Kermit file transfer protocol. These clients are available not only

from Columbia University's Kermit Project but also numerous third

parties.

TABLE OF CONTENTS

1. INTRODUCTION ................................................ 2

2. BACKGROUND .................................................. 3

2.1. History ................................................... 3

2.2. Motivation ................................................ 4

3. THE INTERNET KERMIT SERVICE MODEL ........................... 7

3.1. Server-Side Kermit Server ................................. 7

3.2. Client-Side Kermit Server ................................. 8

3.3. Loosely Coupled Operation ................................. 9

4. SECURITY CONSIDERATIONS .....................................10

4.1. AUTHENTICATION ............................................10

4.1.1. Telnet Authentication ...................................10

4.1.2. Telnet over TLS option ..................................11

4.1.3. Plaintext Authentication via Kermit REMOTE LOGIN ........11

4.1.4. Plaintext Authentication via Command Prompt .............11

4.1.5. Anonymous Login .........................................12

4.2. ENCRYPTION (PRIVACY) ......................................12

4.2.1 Telnet Encryption ...