Just inherited a 4 server setup -- 1 DC (2008 R2), 1 Terminal Server, 1 App server and 1 SQL server. Only the DC has an outside IP address, plus and inside (192.168.1.50). The other servers are all addressed locally, 192.168.1.110 - 112. The Router address is 192.168.1.1.
My question -- this was previously set up so the three inside servers had a DNS 1 pointing to the router (192.x.x.1) and DNS 2 pointing to the DC, which is hosting DNS (192.x.x.50). In the past, I would only use DNS1 pointing to the router on all servers and workstations -- is there an advantage to setting up my DNS to read both IP addresses? If so, what order?