Custom (Devolutions) is a new authentication mode that uses a single account to access the database for users of this type. User accounts will be created for your staff to use Remote Desktop Manager (RDM), but to be entirely managed by RDM. SQL Logins are not created for these user accounts, therefore accessing the database directly (with tools such as Microsoft Excel or others) will no longer be possible.
To ensure that the password of the account used for the database access is not revealed, the administrator will be required to distribute a Data source Definition file (.rdd) which contains the information beforehand.
See entire process on our blog: