[Techtalk] bind alias not working

[Noir]

My "http://www.example.com" is not working; however,
"http://example.com" works fine.

nslookup for "example.com" is ok but nslookup for
mail.example.com or www.example.com gives a
"Non-existent domain" error.

It listens on a private IP and gets NAT'ed out through
the firewall.

Is there anything I am missing? nslookup should work
without any tweaking of apache or MTA.

TIA.

Bind version is 9.3.1.

The host/ computer name is - test

The domain name is - example.com.

Here's my db.example.com file

$TTL 3h
@ IN SOA test.example.com. root.example.com. (
                                      42 ; serial
                                      3H ; refresh
                                      15M ; retry
                                      1W ; expiry
                                      1D ) ; minimum

                    IN NS test.example.com.
                    IN MX 10 test.example.com.

localhost IN A 127.0.0.1
test IN A 192.168.25.55

www IN CNAME test
mail IN CNAME test

Here's my db.192.168.25 file

$TTL 3h
@ IN SOA test.example.com. root.test.example.com. (
                               43 ; serial
                               3H ; refresh
                               15M ; retry
                               1W ; expiry
                               1D ) ; minimum

             IN NS test.example.com.

55 IN PTR test.example.com.
1 IN PTR localhost.


Here's my named.conf file -

acl clients {
       localnets;
       192.168.25.55;
       ::1;
};

options {
       version "heh";
       listen-on    { any; };
       allow-recursion { clients; };
};

logging {
       category lame-servers { null; };
};

// Standard zones
zone "." {
       type hint;
       file "standard/root.hint";
};

zone "localhost" {
       type master;
       file "standard/localhost";
       allow-transfer { localhost; };
};

zone "127.in-addr.arpa" {
       type master;
       file "standard/loopback";
       allow-transfer { localhost; };
};

zone "com" {
       type delegation-only;
};

zone "net" {
       type delegation-only;
};


// Master zones
//
zone "db.example.com" {
       type master;
       file "master/db.example.com";

zone "1.168.192.in-addr.arpa" {
       type master;
       notify no;
       file "master/db.192.168.1";   
};


		
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