🚀 go-pugleaf

FTP stands for File Transfer Protocol, a program on APRAnet (and many
local area nets as well), which is designed to reliably transfer files
between hosts on a single internet.  E.g. from any host on ARPA I could do:
FTP
COLUMBIA-20
LOGIN ANONYMOUS GUEST
GET <INFO-PC>FOO.BAR (to local file) FOO.BAR
BYE
QUIT

(diferent operating systems may slightly vary the syntax and capabilities,
but all hosts are expected to support transfer of text files in a standard
way (in spite of such differences as one character per 8-bit byte on PDP 11s
and VAXs; 5 7-bit characters per 36-bit word on PDP-10s and even EBCDIC on
IBM mainframes).  Binary files are also transferable, though between
sufficiently dissimilar machines, the only guarantee is that there should be
a mode which would let you store and later get the file in its original form.
FTP guarantees full transparency for data because TWO logical connections
are used to perform the transfer, one for control (including negotiations
over format), the other for actual data.
	Most ARPAnet hosts support the special login name ANONYMOUS with any
password (convention is password is your name) for retrieval of public files,
for use by FTP only.  Other files may be accessed by providing a legitimate
login.
The following network protocols support some kind of FTP:  NCP (obsolete,
old ARPA protocol), TCP/IP (new DOD/ARPA protocol), PUP (Xerox PARC research
Ethernet), XNS (Xerox 10M bit Ethernet) and Chaosnet (MIT research LAN).
In addition these nets also support services such as virtual-terminal logins
(TELNET protocols) and mail (e.g. SMTP), all multiplexed over a single
physical net.
	Darrel J. Van Buer	UUCP sdcrdcf!darrelj
				ARPA VANBUER@USC-ECL