Our company is planning on moving from a single forest with multiple domains to a single forest with a single domain.
This is my infrastructure:
ROOT-DC.techtunes.lan ROOT-ADC.techtunes.lan ROOT-ADC2.techtunes.lan
Now, we are planning to move our child domains on root-dc.techtunes.lan then we will create separate OU for each site and also place Global Catalogs on each site for backup purposes.
I have read that the Active Directory Migration Tool v3.2 is an important tool to migrate our users, but I have some questions about it.
What happens with users whose names are duplicated in each domain? For example: one user named
abc is in Cambridge and also in Karachi. What happens when we move both
acb accounts to a single domain?
What about other services like DHCP and DNS? We want to run DHCP locally at each site.
I'd appreciate answers on how to proceed.