NGinx - URL-Forwarding from a Subfolder to a new Domain

How a url forwarding works with the Apache server, I have described in this article .
However, I have now switched to Nginx, a small, sleek, and very high-performance alternative to the flagship Apache - so it better suited for a Raspberry, a Beaglebone or a Cubieboard. But NGinX has no .htaccess-files. Forwardings are there - like everything else - set in the server configuration.