To connect to a Unity server from off box, the account you are logged in as needs to have
read access. If you are doing updates in your application, you also need write access to the
UnityDB database. By default, the SQL database installs with NT authentication only and
this is what we recommend. You can set up SQL to also do its own authentication that
allows you to pass in a login and password via your connection string. However, we do not
recommend this as it is not very secure. Relying on NT to do this for you is a safer and
cleaner approach.
The Unity server’s SQL installation ...
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