I have one AD-DNS server (Windows 2008 R2 based) running in my production system.This AD-DNS server is having 10 Nos of sites connected to it under one forest.The forest is having 1 no. of domain under it.
It is having more than 100 nos of group policies and more than 100 OUs configured in it and more than 300 users.
I require to set up a test platform of the same configuration.But, I do not require all the sites, all the OUs and all the users to be configured in the Test System.
The test AD-DNS server is required for only user authentication and client application running purpose.I am running client applications which authenticate through the domain accounts.
I like to know what bare minimum requirement should I have in the sample test AD-DNS server so that I can run my test platform. If I have to create a new AD-DNS (via DC promo), what steps should I follow to meet my requirement.