What
is the FTP protocol?
The
FTP protocol (File Transfer Protocol) was conceived
to allow the transfer of large files between computers.
Thanks to this service, you can exchange files of
any size or nature with any server linked to the Internet.
This
aspect of the Internet is a little more complex than
the others because it is closer to the UNIX operating
system. Its basic principal is that TCP/IP allows
you to enter in communication with any other computer
in the world by your Info-Internet connection. The
distant computer will first ask you to send it a user
name and a password. Naturally, you do not have an
account with every computer system in the world like
you do on your home computer, and when you try to
enter in contact with them, using your name and your
usaual password, your access will be refused.
However,
there exists an agreement allowing one to obtain limited
access using the ``anonymous`` user name and an electronic
mail address as a password. Usually, the anonymous
user does not have access to files in the public directory,
called ``pub``. The FTP directories are now available
to be seen from most browsers (Netscape, Internet
Explorer,…).
You
can also access the FTP server of Info-Internet with
your user name and your password, allowing you to
use your own directory and your memory space of two
mega-octets to place your own personal Web page.
There
are two types of files : the binary ones (which include
everything which is not text) and the text files,
in ASCII format. These files may be read with the
help of a word processing software.
Use of file transferring with WS_FTP:
In
order to use the FTP service, we recommend the ``WS_FTP``
software. You will find the latest version in our
FTP Archive or at
TUCOWS : http://www.tucows.com/.
Once this utility is downloaded and installed, adjust
the following settings :
- Host
: name of FTP server (example : ftp.info-internet.net)
- User-ID
: anonymous
- Password
: your electronic mail address
Your
screen will be sectioned off into two parts : the
left side represents the contents of your computer
(local system) where as the right side represents
the contents of the directories of the server you
wish to connect to (remote system).
The
arrows in the middle indicate the direction of the
transfer of files to be made. To begin transferring
a file, you must be in the correct directories, that
is, locate the directory source of one side and the
destination of the other side. Then you must press
on the appropriate arrow. A ringing signal will be
heard once the transfer is finished.
Most Frequent
Problems:
1. Nothing happens when you try to open a new program
that you have just downloaded : It is very likely you have brought in the
file in ASCII format. The best thing to do is to discard the file and
try downloading it again, this time, in binary format.
2.
You try to access a site by using ``anonymous`` for
your password, but your access is refused : Many FTP
sites restrict access to their servers to avoid excess
loads and unfortunately the best sites are often the
most difficult to reach. Usually it is easier to reach
them outside high frequenting hours.
3.
You try to communicate with your FTP site at Info-Internet
in order to transfer files, but you cannot get the
www directory : Call customer service and check if
your personal directory has been actived at (514)
342-INFO (4636).
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