$TTL 3600
@       IN      SOA     ns.cleansys.or.kr. root.cleansys.or.kr. (
                                      2007031503 ; serial
                                      28800      ; refresh
                                      7200       ; retry
                                      604800     ; expire
                                      86400      ; minimum
                                      )
        IN      NS      ns.cleansys.or.kr.
        IN      A       210.99.81.147

ns      IN      A       210.99.81.136
www     IN      A       210.99.81.147
portal  IN      A       210.99.81.201
tams    IN      A       210.99.81.202
aims    IN      A       210.99.81.203
ioa     IN      A       210.99.81.204
*       IN      A       210.99.81.147