RFC 172 · UNKNOWN · 1971

The File Transfer Protocol

Overview

RFC 172, “The File Transfer Protocol”, is an Unknown document published in June 1971 by A. Bhushan, B. Braden, W. Crowther, E. Harslem, J. Heafner, A. McKenzie, J. Melvin, B. Sundberg, D. Watson, J. White. It updates RFC 114. It has since been updated by RFC 238. It has been obsoleted by RFC 265 — refer to the newer document for the authoritative version. The canonical text is published by the RFC Editor.

What “Unknown” means

The standards-track status of this early RFC was never formally classified.

Read this RFC

The canonical text of RFC 172 is hosted at rfc-editor.org. Available in TXT,HTML.

Relationships to other RFCs
Obsoleted by
RFC 265
This RFC updates
RFC 114
Updated by
RFC 238
Other RFCs from 1971

Who Is Online

In total there are 83 users online: 0 registered, 78 guests and 5 bots.

Most users ever online was 1,226 on 13 Jun 2026, 3:56 am.

Bots: Applebot Other Bot Other Crawler SemrushBot YandexBot

Users active in the past 15 minutes. Total registered members: 354