Every DNS server should Point to its own IP as a primary DNS and DNS located in remote site as a secondary DNS in
TCP/IP properties
All the unused NIC’s to be disabled
Valid DNS Ip from ISP to be configuered in DNS forwarders Do not configuere local DNS in forwarders
Public DNS IP’s Should not be used at any NIC Card except Forwarders
Domain Controllers should not be multi-homed
Running VPN server and RRas server makes the DC multihomed refer
http://support.microsoft.com/default.aspx?scid=kb;en-us;272294
If anything above is incorrect please correct it and run “ipconfig /flushdns & ipconfig /registerdns ” and restart
DNS service using “net stop dns & net start dns”
DNS best practices
http://technet.microsoft.com/en-us/library/cc778439(v=WS.10).aspx
Checklist: Deploying DNS for Active Directory
http://technet.microsoft.com/en-us/library/cc757116(v=ws.10)