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- <html>
- <title>FTP -- File Transfer Protocol</title>
- <meta name=description content="Description of how to use FTP within ArcWeb">
- <body>
- <h1>File Transfer Protocol (FTP)</h1>
-
- ArcWeb contains its own FTP client which is capable of performing most of the
- usual FTP activities. It allows you to upload and download files via
- anonymous FTP and <a href="#nonanon">non-anonymous FTP</a> too. The two
- alternate types differ only in the authentication required to use them. With
- anonymous FTP, no secure authentication is require and non-anonymous FTP
- requires specific user authentication (although it still isn't that secure
- because the password is passed across the network in plain text format
- anyway).
-
- <h2>Anonymous FTP</h2>
-
- The format of a URL for anonymous FTP is:
-
- <blockquote><code>ftp://«FTP server host name»/«path to
- object»</code></blockquote>
-
- Provided that the host name you give is running an anonymous FTP service,
- then you should be able to access any of the files on it by navigating around
- the directory structure by clicking on directories to view those directories,
- and clicking on files to download them.
-
- <p>You can also <em>upload</em> files to the server. It is usual for
- anonymous FTP servers to allow uploads only to the <code>/incoming</code>
- or <code>/pub/incoming</code> directories (although restrictions are far
- less with non-anonymous FTP). To upload a file, drag it from a Filer window
- onto a window displaying an FTP directory listing generated by ArcWeb. For
- more details see the page about <a href="ftpupload">FTP uploads</a>.
-
-
- <a name=nonanon><h2>Non-anonymous FTP</h2></a>
-
- The format of a URL for non-anonymous FTP is:
-
- <blockquote><code>ftp://«User name»@«FTP server
- host name»/«path to object»</code></blockquote>
-
- If the supplied user name requires a password to access the FTP
- service supplied by the FTP server, then you will be prompted for it. The
- password is cached for the duration of the session (permanently if you have
- made the authentication database persistent in the Network configuration
- window).
- <p>
- If you really want to, you can specify the password in the URL thus:
-
- <blockquote><code>ftp://«User
- name»:«Password»@«FTP server host
- name»/«path to object»</code></blockquote>
-
- The problem with putting the password in the URL directly, is that it will
- end up in your global history like that in plain view for anybody to see. If
- you bookmark a directory listing, it will end up in your bookmark files. If
- you allow ArcWeb to prompt you for the password, then it will only store it
- in the authentication database which is stored on disc in an encrypted
- format which although not secure would require some work to decrypt.
-
- <hr>
- <address>Stewart Brodie<br>5th April 1997</address>
-
- </body> </html>
-