RegEx VHost name and the default VHost

[automatix]

Thank you very much for the usefull links and the tip. Yes, the vhost
default was not default. Now I've set it to default explicitly with the flaf
default_server and everything works fine!

Thank you, Valentin!

Since "default server is the first one"
(http://nginx.org/en/docs/http/request_processing.html), the problem must
have been, that the server couldn't find a vhost for the request and just
took the first vhost. But what ist "the first" vhost, when all vhosts are
stored in different files? In which order are the vhost files processed?

Posted at Nginx Forum: http://forum.nginx.org/read.php?2,235490,235505#msg-235505