What is the best practice for the internal DNS implementation?
My organization has 50 remote sites. Some are fairly large with 30 users and I am thinking having one DNS server at the headquarter and a backup DNS server at a backup site.
Now, all of the remote sites will go through the MPLS SAN to get the DNS service, will it affect my bandwidth? What is a typical bandwidth consumption for the DNS services?
I am also thinking may be the medium sites should have their own DNS server. But I am not sure what the best practice out there as far as the internal DNS server implementation.
PS. I have 4 ADs in my organization