In Plesk it is possible to create additional FTP users for a domain.
However, SSH File Transfer Protocol(SFTP) access is supported only for the main FTP users on the webspace.
To allow SSH File Transfer Protocol(SFTP) access for additional FTP user,
/bin/bash (chrooted) access should be enabled. Since there is no way to enable chrooted access for additional FTP users, SFTP is not available for these accounts.
Feature request to make an access to the server over SSH for additional ftp users was created.
FTP over SSL(FTPS) can be enabled in order to use secure connection to transfer data. This feature was implemented for both Linux and Windows systems since Plesk 11.5. You can read more in our documentation.
To workaround mentioned behavior you can modify the
/etc/passwd file manually: change the shell for required user to
Please be advised that such configuration was not officially tested, therefore any issues related to such configuration will not be supported.