default virtual host overrides all other virtual hosts

[antjkennedy]

hopefully someone can help, i've been trying to set up nginx with virtual
hosts but the default host always overrides any of the others that i
specify.

here is my config file found in /etc/nginx/sites-enabled

server {
    listen 80;
    server_name sub.example.com;
    return 404;
}

server {
    listen 80 default;
    server_name *.example.com;
    return 501;
}

and the access.log shows

*.*.*.* - - [30/Oct/2013:04:09:11 +0400] "GET / HTTP/1.1" 501 582
"http://sub.example.com/" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_0)
AppleWebKit/537.36 (KHTML, like Gecko) Chrome/30.0.1599.101 Safari/537.36"
*.*.*.* - - [30/Oct/2013:04:09:14 +0400] "GET / HTTP/1.1" 501 582
"http://www.example.com/" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_0)
AppleWebKit/537.36 (KHTML, like Gecko) Chrome/30.0.1599.101 Safari/537.36"

thanks in advance for any help / ideas.

Posted at Nginx Forum: http://forum.nginx.org/read.php?2,244255,244255#msg-244255