[ingo] ssh2 vfs backend not working

[Volker Then]

Hi,

I'm trying to use the SSH2 vfs backend to upload the generated  
procmail script. The SSH PECL module has been successfully installed,  
test.php gives no errors.

Activating the script just gives: "Authentication to SSH2 server  
failed.", but authentication against Horde or SSH work with the same  
user credentials.

Is there any special authentication mechanism which should be turned  
on in /etc/ssh/sshd_config?

The sftp subsystem is activated and working.

Any idea?

Thanks.

Volker