active connections dropped during file upload -- iis ftp

Shaun Buckley
11/29/2004 2:51:03 AM

I have just migrated our nt domain to windows 2000. we have an nt4 ftp server
running iis4.0. all our other servers are 2000/2003. Since the migration
users ftping data are having there connections dropped with error 426. We are
left the files of 0 bytes. I seems that this only effects users who have an
active rather then passive(works ok) connection. We have a mix of users
(unix, windows, dos) and i'm stumped as to what the problem could be. has

Shaun Buckley
12/7/2004 3:51:04 AM

Problem Solved.

It seemed that the problems were caused by surfcontrol. Even though SC was
not monitoring or blocking ftp traffic, it seemed that for some reason it was
blocking port 20. all requests on port 21 were fine. in the end we added the
ip address of the ftp server into surf control and that sorted the problem.

shaun

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Bernard
12/8/2004 11:53:51 AM

Thanks for the update.

--
Regards,
Bernard Cheah
http://www.tryiis.com/
http://support.microsoft.com/
http://www.msmvps.com/bernard/

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iis ftp : active connections dropped during file upload