To create a virtual host in Nginx server and access that by your browser you have to follow couple of steps. In this tutorial I will try to describe how you can create virtual host and how you can access your file by brower.
First STEP: Open your nginx configuration file by running this command.
sudo gedit /etc/nginx/sites-available/default
Second STEP: Then configure you host by following this
Third STEP: Open your hosts file.
sudo gedit /etc/hosts
And write ‘127.0.1.1 app.example.dev’ anywhere of your hosts file. Finally restart your nginx server and browser ‘app.example.dev’ in your browser. That’s it, hope it will work for you