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IIS FTP Site issues

Posted on 2001-08-08
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Last Modified: 2012-06-21
We are attempting to set up a second FTP Site on our IIS Server on an alternate port.  We have this configured, and can connect successfully to the server (at least that is what is reported).  However, when trying to access the site (get a file list, upload a file) each access returns a 425 error (can't open data connection).

This works fine on our first FTP site.

The major config differences:
No Anonymous access
Upload allowed
The root directory for the FTP site is on a different physical drive / not located under the IIS root directory.

Any suggestions as to what I should be looking at?
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Question by:bhess1
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by:dredge
ID: 6366466
setup a different data port.
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by:meverest
ID: 6367665
Hi,

yes, dredge has one solution, thew other is to use a different IP address.

i would advise that you consider different address, as there are few ftp clients that will allow connections on non-standard ports (20, 21)

to use a different address, first you need to obtain another IP address for your server, then add that address to the (relevent) network adapter.  then when you look at the ftp server properties page, the extra IP address will show up in the 'address' drop-down select box.  use one address for each of your ftp servers.

cheers.
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by:bhess1
ID: 6378789
Hmmm... I may have neglected to mention....  No, I did mention that I had set it up on an alternate port.  

FTP1 is on port 21/20

FTP2 is up in the 1800s

However, I do appear to have neglected to mention the Proxy Server - MS Proxy Server v2.0 - that, I believe, is responsible for at least some of the problems.
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by:meverest
ID: 6378803
ok then, the problem can be fixed by making PASSIVE (PASV) connection to the ftp server.  this method causes the client to initiate all connections rather than server attemtping to initiate connection for data stream (active mode)

regards.
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Expert Comment

by:mohanakrishnan
ID: 6535988
You proxy server may be allowed to have FTP connection. Check with the proxy server and check for what are all the protocols it is allowed.

Cheers
MK
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by:bhess1
ID: 6536908
I have found a way around the problems here.  I have set up another FTP protocol in Proxy Server (called it FTP2) with the appropriate port for the initial connection, and all other information set up identically to the original FTP protocol definition.

Once this was set up, the connection went smoothly. Thanks for the assistance.
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ComTech earned 0 total points
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ComTech
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