Forum Discussion
Charles Nanayakkara
Nov 02, 2018Copper Contributor
Consolidating 7 different AD forests to single forest with multiple AD trees
Hi,
My organization is planning to move out from in-house Linux based Email server (Zimbra) to Cloud based Office 365(hosted Exchange). Part of this initiation I need to consolidate 7 different AD forests to a single Forest with multiple AD trees. Our organization has multiple sister companies with their own AD forest with each having single AD domain. Few forests are trusted. We have good connectivity among the sites (companies).
My challenge is to consolidate all seven AD forests to a single Forest and make the domains name routable ( match the email domain to the AD domain name and allow me to Sync to Azure AD tenant).
My plan:
- Create a new forest with company Groupname (we have a domain name registered for this)
- Create 7 new AD domain trees under this Forest with new names match with their respective email domain names.
- Migrate existing AD Users, Groups and Computer Accounts to respective new domains
- Use Azure AD connect to Sync all accounts to Azure AD tenant
- Migrate all the mail boxes to Office 365 (hosted Exchange)
I need to validate these steps and need some recommendation on tools that available for migrating users/computers from old AD domain to new AD domain without touching end user computers.
BTW we have total of 600 computers in the organization.
Thanks, in advanced.
Charles
This one might help.
looks more like a contract service available from Microsoft.
https://www.microsoft.com/en-us/enterprise/services
- ecarrowCopper Contributor
Please describe a MS AD purple forest context and security strategy
- Fabrizio Giovannetti
Microsoft
HI Charles,
Ad Forest is 2008R2,2012R2,2016?
OS Workstation?
You have 2 chance or use ADMT tool or a new Internal Service ADMS.
- Charles NanayakkaraCopper Contributor
Hi Fabrizio,
Thanks for you reply. DC's are Windows 2008R2. Workstations are Windows 7 and Windows 10.
What do you mean by 2 chance?
I am planing to use ADMT in each forest to transfer to new single forest in 7 stages.
Thanks
Charlers
- Fabrizio Giovannetti
Microsoft
Ok you can use ADMT 3.2 for WKS 7 and DCs 2008R2
If you have WKS 8,8.1 or 10 is not possible use ADMT but ADMS Services
Best Regards,
Fabrizio
- Charles NanayakkaraCopper Contributor
Hi,
Is this not the correct community post this query?
Charles
Charles Nanayakkara wrote:
Hi,
Is this not the correct community post this query?
Maybe this one helps.