Hi, I have a server 2008 with 2 nics and i want one to handle the private network (services: AD and DNS) and the other to have a public ip, connected to the DMZ port in my router giving only the DNS service to the internet. The idea is to set the firewall to only allow port 53 on this network or connection I've tried to set the private ip manually to the second nic, but i keep getting the message: "multiple default gateways are intended to provide redundancy to a single network..." Then i save the changes, and when i recheck the nic config, the gateway field is empty. Is it posible to have the machine serving two networks from different class with two nics? Thanks!

Configuring a multihomed Domain Controller is not a reccomended process: http://msmvps.com/blogs/acefekay/archive/2009/08/17/multihomed-dcs-with-dns-rras-and-or-pppoe-adapters.aspx http://social.technet.microsoft.com/Forums/en-US/winserverDS/thread/a1583d7f-fa59-4497-89de-666d683e53a0/ Basically it is supported but its not recommended because of the issues that may arise.MCTS...

Hi antihue, Thanks for posting here. We will not suggest to host internet facing DNS server in this way , epically not suggest to make it directly connect with both internal and external network same time . We should host a singlehomed server at DMZ and connect it with internet directly for providing name resolution for external . Thanks. Tiger Li Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

Thank you Marius and Tiger, we will host a singlehomed server instead.