[Samba] DC IP address change

[Saad Benateigha]

Hello: 
I have been using a test network for testing Samba 4 
Everything worked OK using 192.168.1.20 for DC 
When I changed the IP to another one in a different subnet 
I modified the following: 

    * The hosts file 
    * Network interfaces 
    * IP forwarders 


I can access internet, I can ping the DC with the changed IP address 
But when I run 
host -t A samba.samdom.example.com.  //changing the appropriate host and domain 

I still get the old IP 192.168.1.120 
What am I missing 

Please help 

SHB