Solved

How do I create a trust between 2 Domains on different subnets?

Posted on 2009-05-12
2
200 Views
Last Modified: 2012-05-06
I want to create a trust between 2 Domains so I can migrate over, Settings,etc, servers from Domain B to Domain A

Domain A is on the local network
Domain B is on the DMZ, but I can access the DMZ through the DNS/DC and all the servers are pingable.

How can I create a trust between both domains so I can do what I need to do?

0
Comment
Question by:eallerton
2 Comments
 
LVL 16

Accepted Solution

by:
speshalyst earned 500 total points
ID: 24367164
This should help you get started..
http://www.neowin.net/forum/index.php?showtopic=602764
 
0
 
LVL 18

Expert Comment

by:Americom
ID: 24374225
In your scenario:
DOMAINB trusts DomainA
      
DomainA         
Run Active Directory Domains and Trusts->Right Click on the Domain  and select Properties Then click the "Trusts" tab. Then click on New Trust. Provide DNS or NetBIOS name of other domain(DomainB). Here you need an "incoming trusts". If no other specific restriction, do forest trust. When done, you should have DomainB listed on the bottom box of the "Domains that trust this domain(incoming trusts)"

DomainB.
Do the same but the opposite of the above.

If you run into any problem or better yet, confirm if your firewall ports are opened since DomainB is in the DMZ:
These are the ports and protocol require to open on both side of the firewall if trust is to be established between two domains:

UDP      135, 389, 53, 88, 445, (for NetBIOS: 137, 138)
TCP       135, 389, 636, 53, 88, 445, 1024-65535, (for NetBIOS: 139, 42)
ICMP      Dependency of port 139, also used by Windows Redirectors, Group Policy, MTU etc


Service Name             UDP       TCP
LDAP                   389       389
LDAP SSL             N/A       636
RPC Endpoint Mapper       135       135
Global Catalog LDAP       N/A       3268
Global Catalog LDAP SSL N/A       3269
Kerberos             88       88
0

Featured Post

What is SQL Server and how does it work?

The purpose of this paper is to provide you background on SQL Server. It’s your self-study guide for learning fundamentals. It includes both the history of SQL and its technical basics. Concepts and definitions will form the solid foundation of your future DBA expertise.

Question has a verified solution.

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

ADCs have gained traction within the last decade, largely due to increased demand for legacy load balancing appliances to handle more advanced application delivery requirements and improve application performance.
This article describes my battle tested process for setting up delegation. I use this process anywhere that I need to setup delegation. In the article I will show how it applies to Active Directory
This tutorial will walk an individual through the process of configuring their Windows Server 2012 domain controller to synchronize its time with a trusted, external resource. Use Google, Bing, or other preferred search engine to locate trusted NTP …
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 …

860 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