RFC 414 (rfc414) - Page 1 of 5
File Transfer Protocol (FTP) status and further comments
Alternative Format: Original Text Document
Network Working Group A. Bhushan
Request for Comments: 414 MIT-MAC
Updates: RFC 354, RFC 385 29 November 1972
NIC: 12406
FILE TRANSFER PROTOCOL (FTP) STATUS AND FURTHER COMMENTS
A number of HOSTs have working server and user FTPs now. The
following reflects the status of FTP implementations to the best of
my knowledge:
BBN(A and B), SRI-ARC, UTAH, CASE, USC-ISI, CCA, MIT-AI MIT-
Mathlab, MIT-DMCG, CMU, AMES-67, and SU-AI have fully functionning
server and user FTPs.
MIT-Multics has user and server FTPs but the server does not
listen on socket 3 (it can be started by normal login and the
command ftp_server). UCSB will soon have user and server FTP's.
The servers at all the TENEX systems are more or less identical
(developed by Bob Clements at BBN). The servers at MIT-AI and MIT-ML
are also identical (developed by Pitts Jarvis of MAC). Others
currently involved with FTP include Arvola Chan (AC@MIT-DMCG), Ken
Pogran (Multics), Greg Hicks (HICKS@UTAH), Wayne Hathaway (AMES-67),
Ralph Gorin (SU-AI), Rick Werme (CMU), and Ron Stoughton (UCSB).
The User-FTP or the user interface to FTP is where desirable and
interesting features can be put in. An example of such a features is
the BBN (and other TENEXes) "SNDMSG USER@HOST" feature which allows a
local user to send messages (or mail) to other network users. If the
remote host is not up, the message is stored as "--UNSENT-MAIL--
USERHOST" in the user's directory and a background job periodically
checks for such files to send mail. MIT-AI and MIT-ML have a "TRANS"
command which allows convenient transfer of files. At MIT-DMCG we
have developed under the "CALICO" subsystem, generalized commands
which allow local users to send mail, copy files efficiently, and
list users and directories over the network in a manner similar to
local usage (that is without having to explicitly connect, login, and
send commands to a remote HOST). We also allow TELNET, FTP, and RJS
users to automatically "login" and perform other command sequences
from an "initial" file.
It should be noted that file transfer between PDP-10's in "Image 36"
is an order of magnitude faster (and more efficient) than in "ASCII
8". Note also that it is useful to provide a "Quote" or "talk" mode
in user-FTP, to enable a user to input commands directly to the FTP
server (i.e. commands not implemented in user-FTP). It is desirable
Bhushan