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iis ftp : FTP "Sunique"


Dennis Haschke
6/9/2006 12:12:34 PM
hello ng,
im trying the ftp with windows server 2003 but i can't work with the sunique
command.
it seems that this is an unknown command at the windows ftp.
on a unix ftp the command works.
what can i do to use the sunique command on windows ftp?
is the only workaround to use 3rd party software?
which software do you appreciate?

thank
dennis


Robin Walker [MVP]
6/9/2006 12:50:34 PM
[quoted text, click to view]

You appear to be using a non-standard FTP client which does not adhere to
the FTP standards. Here is a quote from Alun Jones in this newsgroup 2
years ago:

The "sunique" command is an FTP client command. If you turn on verbose and
debug in your client (verbose may already be turned on), you will see that
the 'sunique' command actually sends the "STOU" command.


In line with RFC 959, IIS' FTP server supports STOU. You can find this
standard at http://www.ietf.org/rfc/rfc0959.txt


RFC 959 says that STOU does not take an argument, and that it generates a
file name guaranteed to be unique, so that you're not overwriting an
existing file. Some FTP clients send an STOU command with an argument.
This is a non-standard extension to FTP, and is not supported by IIS.


FTP is supposed to be a standards-based, portable, and platform-independent
method of transferring files. When writing FTP scripts, it is best to stick
to those functions and commands that will operate in a standards-based,
portable and platform-independent manner.

--
Robin Walker [MVP Networking]
rdhw@cam.ac.uk

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