I setup 2 Bind servers on Ubuntu Server 14.04. The first one is Master DNS and the second is Slave. I have a DHCP server running isc-dhcp-server and assign 2 DNS Server IP for clients
Everything seem working good but just one thing that is not what i want is when i try to shutdown the Master DNS server then i try to nslookup on client and what i get is:
DNS request timed out.
timeout was 2 seconds.
Default Server: UnKnown
Note: Client can't nslookup but Client can connect to the internet and surfing web OK
What i think is when the Master DNS down then the Slave DNS server must be replace and response to the client nslookup but it's not.
So do i have to configure anything special on my 2 DNS Server or what i thing is wrong ?