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000326_news@columbia.edu _Fri May 26 10:38:20 2000.msg
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From: fdc@columbia.edu (Frank da Cruz)
Subject: Re: ensuring unique FTP upload filenames
Date: 26 May 2000 14:34:24 GMT
Organization: Columbia University
Message-ID: <8gm21g$acr$1@newsmaster.cc.columbia.edu>
To: kermit.misc@columbia.edu
In article <8gk438$ro6$1@nnrp1.deja.com>, <nroot@my-deja.com> wrote:
: I've got an interesting problem for the FTP server gurus out there...
:
: We want an FTP site that allows tons of users to log into an anonymous
: account and submit files. The files must not overwrite each other, but
: we don't want the users to have to worry about specifying a unique
: filename.
:
: Ideally, the FTP server would intercept the incoming file and change
: its name to a unique identifier.
:
There's a new service available as an alternative to FTP that does what
you want: the Internet Kermit Service (RFC2839, RFC2840). It's like an
FTP server, but uses Kermit protocol over a Telnet connection to a special
socket (1649):
http://www.columbia.edu/kermit/iksd.html
Among its many advantages over FTP is the ability to ensure that incoming
files don't wipe each other out; as the site administrator you can configure
various filename collision preferences: rename the existing file, rename the
incoming file, reject the incoming file, reject the incoming file only if it
is not newer than the existing file, etc. It can be used by any Telnet
client that includes Kermit protocol.
A publicly accessible Internet Kermit Service is available at Columbia
University if you want to take a look:
http://www.columbia.edu/kermit/cuiksd.html
- Frank