Rewrite all requests to index.php with nginx

Question

In my apache configuration I have the following simple rewrite rule which

1. unless file exists will rewrite to index.php
2. on the urls you never see the f

Answer 1

Flat and simple config without rewrite, can work in some cases:

location / {
    fastcgi_pass unix:/var/run/php5-fpm.sock;
    include fastcgi_params;
    fastcgi_param SCRIPT_FILENAME /home/webuser/site/index.php;
}