How to Add a Name Server

To identify an additional name server:

1.     Start the DNS snap-in.       
2.     Click the DNS Server object for your server in the left pane of the console, and then expand the server object to expand the tree.       
3.     Expand Forward Lookup Zones.       
4.     Under Forward Lookup Zones, right-click the zone that you want (for example, example.com), and then click Properties.       
5.     Click the Name Servers tab, and then click Add.       
6.     In the Server fully qualified domain name (FQDN) box, type the host name of the server that you want to add. For example, type namesvr2.example.com.       
7.     In the IP address box, type the IP address of the Name server that you want to add (for example, type 192.168.0.22), and then click Add.       
8.     Click OK, and then click OK to return to the DNS window.       
9.     Expand Reverse Lookup Zones, right-click the zone that you want, and then click Properties.       
10.    Click the Name Servers tab, and then click Add.       
11.    In the Server fully qualified domain name (FQDN) box, type the host name of the server that you want to add. For example, type namesvr2.example.com.       
12.    In the IP address box, type the IP address of the Name server that you want to add (for example, type 192.168.0.22), and then click Add.       
13.    Click OK, and then click OK again to return to the DNS window.