nginxuwsgi配置泛二级域名解析失败

server{

    listen   80; ## listen for ipv4; this line is default and implied



    server_name sina.com www.sina.com *.sina.com;



set $subdomain '';

if ( $host ~* (\b(?!www\b)\w+)\.sina\.com ) {

set $subdomain $1;

set $suburl $request_uri;

}









    location / {

          proxy_redirect off;

                proxy_set_header Host $host;

                proxy_set_header X-Real-IP $remote_addr;

                proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

           proxy_pass http://sina.com;

           if ( $suburl ~ "/$" ) {

              rewrite ^/(.*) /blog/$subdomain break;

           }

           root /var/www/sina.com/;

           uwsgi_pass 127.0.0.1:8082;

           include uwsgi_params;

    }



    location ~ .*\.(gif|jpg|jpeg|png|bmp|swf|js|css)$

    {

      root /var/www/sina.com/;

      access_log off;

      expires 30d;

      break;

    }

}