How can I do nginx rewrite?

What's the best way to add wildcard subdomains to nginx?

• I've just started using nginx on my personal server, and I'd like to redirect a DNS wildcard *http://.socialuxe.com to various directories on my server (say http://ads.socialuxe.com to /ads/, etc.) Should I use some type of nginx rewrite rule?

• Answer:

  something like: if ( $host *~ (.*)\.socialuxe.com) { set $dir $1; rewrite (.*) $dir/$1; }