www.xyz.com working, but xyz.com not

I need help on something coz I cant seem to get it right...

when I type www.xyz.com on my browser, my website shows but if I just put xyz.com only I get server not found error.

when I ping www.xyz.com I get a different IP from xyz.com.

pri.xyz.com looks like this:

Code:

$TTL        86400
@       IN      SOA     ns1.abc.com. paul.xyz.com. (
                        2008070309       ; serial, todays date + todays serial #
                        28800              ; refresh, seconds
                        7200              ; retry, seconds
                        604800              ; expire, seconds
                        86400 )            ; minimum, seconds
;
                NS      ns1.abc.com.              ; Inet Address of name server 1
                NS      ns9.zoneedit.com.              ; Inet Address of name server 2
;

  MX      10 mail.xyz.com.

xyz.com.      A        122.12.203.204
www       A       122.12.203.204
mail       A       122.12.203.204

xyz.com.       TXT  "v=spf1 a mx ptr ~all"

;;;; MAKE MANUAL ENTRIES BELOW THIS LINE! ;;;;

 

how do I make sure that my dns server is authoritative for the domain and not the dns server of my domain registry?

what I did on my domain registry was to put just

ns1.abc.com as the primary name server
and left secondary name server blank

ns1.abs.com was done following this HowTo:

http://www.howtoforge.com/ispconfig_dns_providerdomain_schlund

 

Do you see the right nameservers listed in the output of

Code:

dig ns yourdomain.com

?