Search code examples
firewallmsdtcports

MSDTC - how many ports are needed


I have a considerably large application that uses MSDTC. How many ports should I open? Is there any way to determine it?

EDIT: I know what ports I need to open, I don't know how many I need.


Solution

  • I think Migol wants to know how big the range of the RPC dynamic port allocation should be.

    In the KB they mention a minimum of 100 ports

    Furthermore, previous experience shows that a minimum of 100 ports should be opened, because several system services rely on these RPC ports to communicate with each other.

    So I would design a benchmark application to test different values of your dynamic range.