SFTP - cannot copy from one SFTP server to another

eee · Post by *eee » 2016-05-30, 09:35 UTC

I have 2 SFTP servers, connected to both with TC, one on the right pane, the other on the left pane.
When I try to copy a file (F5) from one pane to the other I get an error message: "Error downloading file!".

No problem copying (both ways) between SFTP and "normal" file system (local disk, network drive, etc).

Using SFTP plugin:
New secure ftp plugin version 1.4.2 beta 1 (32 bit+64 bit)
Copyright (C) 2008-2015 Christian Ghisler, all rights reserved

Post by *ghisler(Author) » 2016-05-30, 09:56 UTC

Unfortunately SFTP does not support direct server to server transfers, because they use different encryptions. Even if they would, sending the credentials of one server to the other would be a security risk.

eee · Post by *eee » 2016-05-30, 10:55 UTC

I would have expected TC to solve this by e.g. using an intermediate file

Horst.Epp · Post by *Horst.Epp » 2016-05-30, 12:24 UTC

eee wrote:I would have expected TC to solve this by e.g. using an intermediate file

Strange expection.
Thats not what server to server means !
The client may not have enough space and also uploads are slow at least for DSL lines.

eee · Post by *eee » 2016-05-30, 12:50 UTC

Why strange?
I said nothing of "server to server", I said "pane to pane".
As such, my expectation from TC is to solve all problems with pane2pane copy.

When copying between 2 windows shares each with different credentials, is this done server to server? I hope not, since this would expose the same security breach Christian mentioned in his reply.
Also, the 2 shares may even not be accessible between themselves due to e.g. firewall issues. Regardless, I would expect TC to do the copy.