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FTP through ISA 2006 - 6.Oct.2009 11:28:05 AM

RupAnd

Posts: 2
Joined: 6.Oct.2009
Status: offline

Hi

I have a filezilla FTP server/Windows 2003 r2 publisehd through ISA server 2006/Windows 2003 r2.

The problem is that when uploading a lots of small files to the FTP server the sessions halts after a number of files uploaded and after around 30 seconds - error messages depends on application. One application says '425 Can't open data connection'.

When uploading large files of 200 mb in size and upwards, there is no problems.

I have tried to recreate the problem using another machine placed on the same subnet as the FTP server, but everything went fine, so the problem seems to be nailed to the ISA server.

Is there anyone out there ..... who knows whats wrong?

Post #: 1

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RE: FTP through ISA 2006 - 6.Oct.2009 12:20:33 PM

Rotorblade

Posts: 1348
Joined: 27.Feb.2007
Status: offline

Hard to say; what's showing in ISA montoring and logging? Have you R/O a Windows OS/third party Firewall issue on the client?

RB

_____________________________

David Melvin
Ohio
MCSE: Security 2003, MCSA:Security 2003

(in reply to RupAnd)

Post #: 2

RE: FTP through ISA 2006 - 7.Oct.2009 4:16:29 AM

RupAnd

Posts: 2
Joined: 6.Oct.2009
Status: offline

ISA montitoring just tells that a FTP session is opening from client to ftp server and nothing more.

On the client windows firewall is enabled, but:

1. Large files is uploaded without problems
2. Even when disabling windows firewall the probelm with small files persist.

(in reply to Rotorblade)

Post #: 3