Re: Does IIS5/6 support MDTM command?

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From: Alan T (AlanT_at_discussions.microsoft.com)
Date: 11/18/04 

Date: Wed, 17 Nov 2004 18:21:02 -0800

Alun,

Do you mean although IIS 5/6 support this command, it still doesn't allow
user to modify the timestamp of the file as this action hasn't been allowed
to made into RFC. Does IIS just support command in RFC (how about other
draft?) Can I find any documentation in Microsoft talking about any RFC
supported in IIS 5/6?

Actually, the reason why I post this message is one user incident:
He tried to use "synchronization feature" in dreamweaver to compare &
synchronize the file in FTP server & his PC. However, it seems not stable
when using this feature (Sometime it can detect the different timestamp of
the file but sometime can't). So I just suggest him don't rely on this
feature on my FTP server. Am I correct?

Since I know that other FTP servers support this feature (e.g. Serv-U FTP),
user may claim my FTP server is not user-friendly.

Alan

"Alun Jones [MSFT]" wrote:

> "Alan T" <AlanT@discussions.microsoft.com> wrote in message
> news:D3808737-AA52-4872-8B9B-1DD08CA5F9F3@microsoft.com...
> > I've setup a IIS6 server both WEB & FTP services run normally. However, it
> > seems don't support MDTM command when using FTP client (e.g. ws_ftp &
> > dreamweaver) to update file. (i.e. the timestamp of the file updated
> > cannot
> > be preserved).
>
> The MDTM command, as specified in
> http://www.ietf.org/internet-drafts/draft-ietf-ftpext-mlst-16.txt, does not
> allow for changing the modification time of a file. Your client program is
> trying a non-standard extension to a command that hasn't even been made into
> an RFC yet.
>
> The chief reason the MDTM command hasn't been extended in this manner by the
> FTPEXT working group is that the command you are trying could not be
> uniquely distinguished as being a request to change the modification time,
> since there could be a file named "20040619182120 a.xls", that you could be
> asking for the time on. Worse, in the other direction, if there was a file
> named "19960517180300 DigiPic.jpg", and you asked for the modification time
> of that file, you'd get back an unpredictable response. It would be a very
> bad thing to design or implement a command that could cause (even rarely)
> essentially random behaviour to happen.
>
> Alun.
> ~~~~
>
>
>

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