My local network is very naive.
I have no AD; just a bunch of 40 Windows 7 computers plugged into the physical network (with a couple of Windows 10 and Linux boxes as well). There is no Windows server of any kind, and no DNS server aside from the Sophos box.
I have a SG310 between my local network and the general internet. My DNS and DHCP configuration is thus:
The address of the Sophos port to which my local network is connected is 192.168.1.1
Network Services | DNS:
Allowed networks = my local network = 192.168.1.0
DNSSEC validation is checked
DNS Forwarders are 8.8.8.8 and 8.8.4.4
Not using forwarders assigned by ISP
nothing else is configured
Network Services | DHCP:
The interface is set to be my local network
The DNS server 1 is set to 192.168.1.1.
The DNS server 2 is 8.8.8.8
The default gateway is 192.168.1.1.
This is about as basic as it gets. And I suspect that more people than are willing to admit it have a similar setup.
My question is: is this setup correct? In particular, is the DNS configuration under DHCP correct?
I think that DNS server 2 of 8.8.8.8 is totally wrong, but before I take it away I would like a second opinion.
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