Internet

, , 1996.
FTPC ftpd ftp

FTP

FTP Internet. , , , , , . : , , , FTP .

FTP ARPA . , FTP . FTP .

FTP

"FTP" -- File Transfer Protocol " ". FTP -- Internet . FTP TCP . "-".

: 


                                +--------------+       +------------+
                                |     |-------||
                                |  |       +------------+
                                +--------------+
                                       |
          +-------------+       +--------------+
          || .  | |
          |    |-------|     |
          |      |  |  |
          +-------------+       +--------------+

          +---------+           +--------------+        +------------+
          ||      |     |        |            |
     +----| |-----------|      |--------|    |
     |    |   |     |        |        |     |
     |    |  |           |  |        ||
     |    +---------+           +--------------+        +------------+
     |
+---------+
| |
|  |
|  |
+---------+
                             .1.

                      FTP.

FTP . TELNET. FTP . . .

FTP . .

, . .

host-, , . , , .

. .

- ftpd

ftpd FTP. . :

ftpd [-d] [-1] [-t timeout]

-d - .
-1 - .
-t - .

help , help. /etc/passwd. .

, , .. , FTP . anonimous ftp. . ftp, bin,etc pub. bin , pub . etc , .

-- ftp

FTP -- . . , open.

ftp , "ftp>".

:

ftp [-v][-d][-i][-n][host]

-v - .
-n - . , .netrc.
-i - .
-d - .
-g - .

"".