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• 10-27-2009, 1:29 PM

  vishalja Joined on 10-27-2009, 5:21 PM Posts 1

  FTP 7.5 Reply Contact Hello I hav uninstalled ftp service  from IIS6 and installed ftp 7.5 - the new one on my win2008 machine. The issue is in passing nlst command to the server. Though nlst and "nlst *" work as expected, passing "nlst *.xml" when there are no matching files then 550 is returned but the data connection does not seem to close immediately. It looks like pause before the ftp prompt comehs up again. Now the concern is whether this is a client issue or is it server's job to close the connection after 550 is sent. From netmon traces it seems the 3-way TCP handshake fails.   Has anyone seen this kind of behavior. Please give some suggestions as to what  could be the reasons for this. Thanks

  Tags: IIS FTP 7.5 data connection error

• 10-27-2009, 10:35 PM

  In reply to

  lextm Joined on 10-22-2008, 4:18 AM Shanghai, PRC Posts 1,402

  Re: FTP 7.5 Reply Contact I checked RFC959, and based on its description I don't think FTP 7.5 does anything wrong, http://www.ietf.org/rfc/rfc959.txt "The server MUST close the data connection under the following conditions: 1. The server has completed sending data in a transfer mode that requires a close to indicate EOF. 2. The server receives an ABORT command from the user. 3. The port specification is changed by a command from the user. 4. The control connection is closed legally or otherwise. 5. An irrecoverable error condition occurs. Otherwise the close is a server option, the exercise of which the server must indicate to the user-process by either a 250 or 226 reply only.  Regards,   Lex Li Support Engineer at Microsoft --------------------------- This posting is provided "AS IS" with no warranties, and confers no rights.