Before upgrading from EFT Server 5 to EFT Enterprise Edition, contact the Sales team to obtain a new registration serial number or to determine your eligibility for an upgrade. If a previous version of EFT, DMZ Gateway, SAT or Secure FTP Server is already installed on the server computer, it is extremely important that you follow the upgrade instructions.
DMZ Gateway 3 - Runs on Windows Server 2012/2008/2003, Red Hat Linux, SuSE Linux, Ubuntu and Solaris. For more information about supported operating systems and requirements, see the Help topic titled System Requirements for DMZ Gateway.
Note: Please contact your account representative for a DMZ Gateway version 3 serial number if upgrading from version 2.