Solved

ADFS 3.0 with a One-Way Forest Trust

Posted on 2016-10-05
1
211 Views
Last Modified: 2016-10-10
Dear Experts,

I am hoping for some advice if the below setup is possible. In short ADFS 3.0 is to be used for SSO for a 3rd party internal application across two forests where a one-way trust exists (Forest A trusts Forest B), accounts in both forests require SSO access.

Environment Summary:
Forest A trusts Forest B via a one-way AD trust
Forest B DOES NOT trust Forest A
ADFS host is a member of Forest A
ADFS service account is a member of Forest B
No external access to the ADFS farm is provided or required (No WAP)
3rd party internal application is using SAML 2.0

Scenario:
Users from “Forest B” can authenticate and logon to the 3rd Party application without issue, Users from “Forest A” get IE authentication prompts. When changing the service account used by ADFS to an account in “Forest A” users from “Forest A” can logon successfully but then users from “Forest B” cannot, this is understandable as the service account in “Forest A” has no access to Forest B. However, I can’t understand why this setup would not work when the service account is setup with an account from “Forest B” as that account has access via the trust to Forest A.

Any help is appreciated.
0
Comment
Question by:Box57l
1 Comment
 
LVL 4

Accepted Solution

by:
Belal Khallad earned 500 total points
ID: 41831235
Hello there,

The below reference, explain the process and the configuration required to get ADFS to work in a one way trust scenario.
https://blog.rhysgoodwin.com/windows-admin/adfs-2-0-in-a-forest-trust-environment/
0

Featured Post

Space-Age Communications Transitions to DevOps

ViaSat, a global provider of satellite and wireless communications, securely connects businesses, governments, and organizations to the Internet. Learn how ViaSat’s Network Solutions Engineer, drove the transition from a traditional network support to a DevOps-centric model.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

In-place Upgrading Dirsync to Azure AD Connect
A project that enables an administrator to perform actions within a user session context not just at the time of login but any time later on day(s) or week(s) later.
This tutorial will walk an individual through the process of installing the necessary services and then configuring a Windows Server 2012 system as an iSCSI target. To install the necessary roles, go to Server Manager, and select Add Roles and Featu…
This Micro Tutorial hows how you can integrate  Mac OSX to a Windows Active Directory Domain. Apple has made it easy to allow users to bind their macs to a windows domain with relative ease. The following video show how to bind OSX Mavericks to …

730 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question