Redirecting from mysite.com to www.mysite.com

[Thomas]

On my local dev machine, here is my /etc/hosts file:
---
127.0.0.1 localhost mysite.com www.mysite.com
---


And in my Nginx config file I have:
---
server {
  server_name   mysite.com;
  rewrite ^/(.*) http://www.mysite.com/$1 permanent;
}
---


But when I want to access mysite.com or www.mysite.com I get the
following error message:
---
Firefox has detected that the server is redirecting the request for
this address in a way that will never complete.
---


What could possibly go wrong?