We have 2 domains with a one way trust relationship (Domain A is Trusted, 
Domain B is Trusting). Domain B is in a DMZ. So Domain A users can access 
resources in domain B with their Domain A credentials. Also using 
selective authentication for this trust. Works great

Working with a vendor  to implement a new system. The issue is that they 
are trying to authenticate Domain A users from within  Domain B (web 
portal is in domain B) across the trust relationship using LDAP. So they 
are pointing the LDAP bind to a Domain B DC, and it's not working. Anyone 
doing something like this? Never had to setup anything like this before. 
Vendor isn't real helpful in this situation. I'm not even positive what 
domain the base DN should be. Been trying both each time we make a change. 
So far no luck. Also not seeing any specific errors on the domain 
controller yet. Bad thing is that not sure what DC the Domain B domain 
controller is bouncing the request off of in Domain A. We have quite a 
few, and the logs are pretty hefty. Probably gonna have to put WireShark 
on this to look at the packets to get a clue. 

Any help is appreciated.

Thanks,



Christopher Bodnar 
Enterprise Architect I, Corporate Office of Technology:Enterprise 
Architecture and Engineering Services 
Tel 610-807-6459 
3900 Burgess Place, Bethlehem, PA 18017 
[email protected] 




The Guardian Life Insurance Company of America

www.guardianlife.com 





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