Can't ping my Master Domain without WWW

Hi,
I can't ping my MASTER domain on my vps without www.
here is my configuration:

; Panel %version%
; Zone file for mydomain.com
$TTL 14400
mydomain.com.      86400        IN      SOA     ns1.mydomain.com. mymail.gmail.com. (
         2013071600      ; serial, todays date+todays
                86400           ; refresh, seconds
          7200            ; retry, seconds
            3600000         ; expire, seconds
           86400 )         ; minimum, seconds

mydomain.com. 86400 IN NS ns1.mydomain.com.
mydomain.com. 86400 IN NS ns2.mydomain.com.

mydomain.com. IN A 178.63.196.22

localhost.mydomain.com. IN A 127.0.0.1

mydomain.com. IN MX 0 mydomain.com.

mail IN CNAME mydomain.com.
www IN CNAME mydomain.com.
ftp IN CNAME mydomain.com.

according to this file if www works, without www it should work also.
try checking by dig-ing google dns

Code: [Select]

dig a domain.com @8.8.4.4