Basically,i a machines(vm);a window server which i use in hosting sites.i simply created ns.mydomain.com at my domain registra and simply pointed it to the IP of my window machine.Everything works fine by just pointing a new domain name to that nameserver.
ns1.mydomain.com ==> IP of window server
ns2.mydomain.com ==> IP of window server
for any domain i need to host on that server;i simply point it to that nameserver and it works fine.
I just added a second server(a linux box) and what iv simply done is to extend my initial nameserver by ns3.mydomain.com ==> ip of linux server
ns4.mydomain.com ==> ip of linux server
I really want to know if this approach is right or do i av to setup a new nameserver on a new domain name because when i checked the "/etc/resolv.conf" file.i saw something like mydomain.com IP IP
But originally,mydomain.com by itself is hosted on the window machine.