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Firewall ports to join a domain (RPC)

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Hi

We have the following scenario in one of our customer network (See the picture below) and I havent been able to find any detailed information about these questions that I have. I think I have  found most of the needed ports to be able to succed but there are still som concerns about the Dynamic RPC ports. Perhaps the customer have to change this design because the firewall will need a lot of openings.

Questions

1a. To be able to join a server or client to a domain which ports need to be opened if the DC are located behind a firewall?

b. Do we also need Dynamic RPC for this actiion?

2 To be able to run different Administration Tools like Active Directory User and Computers do we need to enable Dynamic RPC?

3. If the domain mode is in Windows 2003 is it correct that the RPC port have to be in the scope of 1025-5000 as default? I know that it might be possible to change the scope

Regards

Thomas Z

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Thomas Z



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