we have a single active directory domain set up, but some of our clients wil need to communicate with a domain controller that is behind a firewall. I have been reading through the firewall article written by Steve Riley of Microsoft but it is focused purely on DC to DC communication over a firewall. He outlines various options and all the ports that would need to be opened.
Since client to DC communication is less involved, i want to know which of the ports I need to have opened. In particular I want to know if the RPC dynamic assigment is required in this scenario. Are there any other articles other than the one by Steve that summaries what ports are needed in client to DC communications, when a firewall needs to be crossed.