Nginx: set the server_name as wildcard without hostname

Simple trick to run the nginx with no server_name. server { listen 80 default_server; server_name _; location / { root /path/to/app; index index.php; try_files $uri $uri/ /index.php?q=$uri&$args; location ~* \.php { try_files $uri =404; include fastcgi_params; fastcgi_index index.php; fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name; fastcgi_pass 127.0.0.1:9000; } } }