return 404 '<html><head><title>404 Not Found</title></head><body bgcolor="white"><center><h1>404 Not Found</h1></center><hr><center>default imagery server vhost. Please use correct URL.</center></body></html>';
server_name _;
default_type text/html;
return 404 '<html><head><title>404 Not Found</title></head><body bgcolor="white"><center><h1>404 Not Found</h1></center><hr><center>default imagery server vhost. Please use correct URL.</center></body></html>';