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Questions on Firewalls & NT Domain Trusts

C

codehack2

Golden Member
Figured I'd give this one a shot here..

Does anyone have any ideas on what ports are required to establish a trust between two NT Domains? I've got two domains that are firewalled off from each other & I need to get a trust established between the two. I (As well as the security guys) would like to achieve this without blowing huge hole in the firewall 🙂

CH2
 
isn't that just netbios over TCP?

136 and 137? Netbios datagram and netbios name? You might want to restrict it even further by IP address and try to get around NOT using UDP if you can.

 
Thanks Spidey.. I just found a document on MS's site detailing this. Anthother quick one. If I'm going one way with a trust.. Could I just open up the trusting network to the trusted networks PDC & BDC's?

Thanks Again,
CH2
 
what did the MS doc say? does it stictly use nbname and nbdatagram?

I'm not sure about your other question. I would think that there still needs to be directional communication between the servers even if it was only a one way trust. Try it one way and see what happens!

 
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