Allowing SFTP access in Plesk 9
This is an easy one.
Go to Plesk > {your domain} > Web Hosting Settings
Set 'Shell access to server with' FTP user's credentials to
bin/bash
This is a potential security risk, so you might not want to enable it for reseller domains.
[update 20110217-13:57]
To clarify, obviously using SFTP *increases* security when transferring files - the security risk I refer to is that enabling it will give that user shell access with the FTP details, which could be a security risk, so you might not want to enable it for users accounts which other people have the details of.
[/update]
