$ nslookup -type=ns 79.105.210.in-addr.arpa (C Class 210.105.79.x를 할당 받았을 경우)
    Server:  ns.nobreak.com
    Address: 0.0.0.0
   
    79.105.210.in-addr.arpa nameserver = ns.nobreak.com
    79.105.210.in-addr.arpa nameserver = ns2.nobreak.com
    ns.nobreak.com  internet address = 210.105.79.2
    ns2.nobreak.com internet address = 210.105.79.3
  이렇게 해보니까...
[root@ns root]# nslookup -type=ns 6.100.61.in-addr.arpa
Note:  nslookup is deprecated and may be removed from future re
Consider using the `dig' or `host' programs instead.  Run nsloo
the `-sil[ent]' option to prevent this message from appearing.
Server:        211.115.204.8
Address:       211.115.204.8#53
 Non-authoritative answer:
6.100.61.in-addr.arpa   nameserver = ns2.gngidc.net.
6.100.61.in-addr.arpa   nameserver = ns3.gngidc.net.
 Authoritative answers can be found from:
ns2.gngidc.net  internet address = 211.115.194.2
ns3.gngidc.net  internet address = 211.115.194.3
 이렇게 나오거덩요..
뭐가 잘못됐는지 ...도와주세요....
답멜 기다리겠습니다.