ActiFi FTP servers utilize SSH FTP (Secure Socket Shell / Secure FTP) and whitelisted IP addresses to provide a secure connection to a tenant-specific, encrypted file space. Clients will deliver files to ActiFi's Amazon VPC (Virtual Private Cloud). 
Please review these points before testing your SFTP connection:
Client will provide IP address(es) or an IP address range via email to ActiFi so that incoming connections can be whitelisted.
Configure the Host address based on the following information: 
Configure Authentication:
- ActiFi will provide a User/Username after ActiFi support submits a JIRA request and completing during two week sprint cycle. 
- ActiFi can supply a password via an agreed-upon secure method, typically  box.com .
- Alternatively, the client may provide a public key for Public Key Authentication.
Client will configure the connection client to use SFTP (SSH File Transfer Protocol)
Client will ensure that port 22 is open for outbound traffic.
If you are configuring an automated process/job, ensure that the connection is configured to auto-accept the host key.
A SFTP user’s home directory will contain  and  folders. Clients should deliver files to  and retrieve files from ActiFi via .
For sensitive data, ActiFi can supply a public PGP key that can be used to encrypt files before transfer to further ensure that data is encrypted in transit and at rest.