7. TYPICAL FTP SCENARIO

User at host U wanting to transfer files to/from host S:

In general, the user will communicate to the server via a mediating user-FTP process. The following may be a typical scenario. The user-FTP prompts are shown in parentheses, ----> represents commands from host U to host S, and <---- represents replies from host S to host U.

LOCAL COMMANDS BY USER	ACTION INVOLVED
ftp (host) multics<CR>	Connect to host S, port L, establishing control connections. <---- 220 Service ready <CRLF>.
username Doe <CR>	USER Doe<CRLF>----> <---- 331 User name ok, need password<CRLF>.
password mumble <CR>	PASS mumble<CRLF>----> <---- 230 User logged in<CRLF>.
retrieve (local type) ASCII<CR>
(local pathname) test 1 <CR>	User-FTP opens local file in ASCII.
(for. pathname) test.pl1<CR>	RETR test.pl1<CRLF> ----> <---- 150 File status okay; about to open data connection<CRLF>. Server makes data connection to port U. <---- 226 Closing data connection, file transfer successful<CRLF>.
type Image<CR>	TYPE I<CRLF> ----> <---- 200 Command OK<CRLF>
store (local type) image<CR>
(local pathname) file dump<CR>	User-FTP opens local file in Image.
(for.pathname) >udd>cn>fd<CR>	STOR >udd>cn>fd<CRLF> ----> <---- 550 Access denied<CRLF>
terminate	QUIT <CRLF> ----> Server closes all connections.

---