RFC 686 · UNKNOWN · 1975
MON · 15 JUN 2026
Leaving well enough alone
Overview
RFC 686, “Leaving well enough alone”, is an Unknown document published in May 1975 by B. Harvey. The canonical text is published by the RFC Editor.
Abstract
Discusses difference between early and later versions of FTP; see also RFCs 691, 640, 630, 542, 454, 448, 414, 385 and 354.
What “Unknown” means
The standards-track status of this early RFC was never formally classified.
Read this RFC
The canonical text of RFC 686 is hosted at rfc-editor.org. Available in TXT,HTML.
Other RFCs from 1975
- RFC 685 Response time in cross network debugging
- RFC 687 IMP/Host and Host/IMP Protocol changes
- RFC 684 Commentary on procedure calling as a network protocol
- RFC 688 Tentative schedule for the new Telnet implementation for the TIP
- RFC 683 FTPSRV - Tenex extension for paged files
- RFC 689 Tenex NCP finite state machine for connections
- RFC 690 Comments on the proposed Host/IMP Protocol changes
- RFC 681 Network UNIX