nginx

I have this NGINX config: location / { rewrite ^.* /index.php; } error_page 404 /index.php; and I want to use this in IIS? How would I do so? I have tried messing with web.config and the IIS REwrite tool but I just get error 500 :(

If I create a tor website, how do I make the usage completely anonymous e.g if I'm hosting it on a VPS? Or should I buy a machine myself and host it on there? Also would it be recommended to use Nginx as a web server to proxy Node.js?