I have two DNS & DHCP servers on my network, and I have a configuration question on best practices.
Server #1
Server IP Address: 10.10.1.2
DHCP IP Range = 10.10.1.20 – 10.10.1.149, Scope Options, Router 10.10.1.254, DNS servers 10.10.1.2, 10.10.1.3, External #1, External #2
DNS server = 10.10.1.2 Forwards: = 10.10.1.3, External IP#1, External IP #2
Server #2
Server IP Address: 10.10.1.3
DHCP IP Range = 10.10.1.150 – 10.10.1.235, Scope Options, Router 10.10.1.254, DNS servers 10.10.1.3, 10.10.1.2, External #1, External #2
DNS server = 10.10.1.3 Forwards: = 10.10.1.2, External IP#1, External IP #2
When I look at this configuration I see some redunency and wondering if there is not more efferent way in configuring this.
What I want to know is do I really need the external DNS entries under the DHCP scope options if the DNS servers are programmed to use forwards. Or is it better to remove the forwards from the DNS and have the DHCP assign the external as well as the internal DNS.
If Servers have fowards to the second DNS server do I need the DHCP assign the second internal DNS server?
The way it looks like it is working is when a workstation gets it network settings from the DHCP server that workstation is really only talking to the first DNS server only because that DNS server is doing all the forwarding.
Is this ideal? Why have the forwarders in DNS if the DHCP is assigning all the DNS servers? What is the best practice in this setting?