SFTP is configured and enabled on the Site. To set SFTP authentication options, enable SFTP access on the Settings Templates and/or for each user, and then specify the SFTP authentication options for a Settings Template and/or for each user.
Refer to the links below for more information.
Configuring SFTP Authentication Options
Viewing or Modifying MAC Settings
Viewing Importing Renaming and Deleting Client Keys
Modifying the SFTP Identification String
Extracting the Public SFTP Key
Using SFTP (SSH) with Radius/RSA SecureID
Configuring SFTP Authentication Options for a Settings Template or User Account