I have a scenario where I have two servers, one running IIS and one running SQL server 2014. There are two types if clients, one running a web browser against a web application on the server running IIS and one running a local WPF application against a local database which should be merge replicated to the database in the server running SQL server 2014 - see the attached picture. None of the machines belong to any domain. the SQL databases are all setup with FILESSTREAM enabled since they are handling files. This means the authentication against the SQL server has to be Windows authentication.
Right now I have no idea how to configure this. Kerberos?