Trying to do the opposite of www.domain.com -> domain.com

[David]

Thank you Igor, that is a great solution.

"
BTW, it's better to use something like this instead of "if":
 
server {
      server_name  www.maydomain.nl;
      ...
}
 
server {
      server_name  maydomain.nl;
      rewrite ^(.*)$ http://www.mydomain.nl/$1 permanent;
}
"