My app allows users to use own domains for their profiles. They should be able to delegate their domains to my ns servers (i.e. ns1.mynsdomain.com, ns2.mynsdomain.com).

So i decided to try Bind9 as a DNS server, but can't figure out how to configure it properly to work with wildcard domains.

Things i did:

1. Added zone:

zone "." {
    type master;
    file "db.wild";
};

1. Added db.wild file with following content:

$TTL    86400
@   IN  SOA  mynsdomain.com. root.mynsdomain.com. (
             100500     ; Serial
             604800     ; Refresh
              86400     ; Retry
            2419200     ; Expire
              86400 )   ; Negative Cache TTL

    IN  NS  ns1.mynsdomain.com.
    IN  NS  ns2.mynsdomain.com.
    IN  A   MY_SERVER_IP_ADDRESS

ns1 IN  A   MY_SERVER_IP_ADDRESS
ns2 IN  A   MY_SERVER_IP_ADDRESS

*.  IN  A   MY_SERVER_IP_ADDRESS

Now if i try to ping example.com (which is already delegated to ns1.mynsdomain.com./ns2.mynsdomain.com.), it responds with "cannot resolve example.com: Unknown host"

What's wrong with my setup?