Well even when you are working on the floor at Teched you have the opportunity to research and deal with customer queries. So I was busy doing my flipping between the Ask the Experts and the Hands On Labs  and a delegate asked me a question that deserves serious consideration.

 

The delegate was asking what was Microsofts recommendation around having more than one Network Card in a Domain Controller.

Well my response was and is that this is not a recommended configuration however we do realise alot of our customers do work in this configuration.

Please see below for the kbarticles and background information around this.

The reason for this is various issues which are well documented in the following articles.

http://msmvps.com/blogs/acefekay/archive/2009/08/17/multihomed-dcs-with-dns-rras-and-or-pppoe-adapters.aspx

http://forums.techarena.in/active-directory/954155.htm

Both these technical references point to kbarticles which highlight specific issues which can arise in this situation , but also highlight workarounds.

246804 - How to Enable-Disable Windows 2000 Dynamic DNS Registrations (per NIC too):

http://support.microsoft.com/?id=246804

296379 - How to Disable NetBIOS on an Incoming Remote Access Interface [Registry Entry]:
http://support.microsoft.com/?id=296379