Thanks for the help, however I had already read the documentation and still was in doubt so I asked.
Can you give me an overview of how to get setup? For I have doubts still.
DNS> Setup
I point the DNS Server # 1 to upstream DNS my AD?
On client computers I know I should point the primary DNS to NXFilter, but he will be able to make queries in the internal domain?
I do some other DNS configuration for the two work together?