EFT Server provides the option of transferring files over AS2 (Applicability Statement 2), used to exchange structured business data securely using the HTTP (Hypertext Transfer Protocol; An application protocol that runs on top of the TCP/IP suite of protocols used for Internet/intranet communications, typically over port 80.) or HTTP/S (Secure HTTP connection; HTTP is used, but with TCP port 443 and an additional encryption/authentication layer between the HTTP and TCP.) protocol. The topics below provide information about AS2 and how to configure EFT Server's AS2 module.