Hello JRSitman,
Thank you for posting in Microsoft Community forum.
You can add the second domain controller in your friend's business (the same domain), then this second domain controller will be replicated with Windows domain controller in your home network (Comcast). After that, ensure this second DC works fine and AD replication is OK, you can demote/remove the first DC in your home network.
That is Domain Controller migration in the same domain. Data in all DCs in the same domain will be the same.
Setting up a Windows domain controller and then moving it to another location with the same ISP (Comcast) involves several considerations:
- IP Address Changes:
As you mentioned, the IP address will change. Ensure that your domain controller and other devices in the network can accommodate the new IP address. If you're using a static IP address for the domain controller, you'll need to update it to reflect the new network settings at your friend's business.
- DNS Configuration:
Make sure your DNS settings are updated to reflect the new IP address. The domain controller usually acts as a DNS server, so other machines will need to know the new IP address to connect to it.
- Network Configuration:
Verify that the network settings (such as subnet mask, gateway, and DNS server addresses) are appropriate for the new network at your friend's business.
- Firewall and Security Settings:
Ensure that any firewall settings on the new network allow the necessary traffic to and from the domain controller. This includes ports for Active Directory, DNS, and any other services the domain controller will provide.
- Active Directory Sites and Services:
If you have multiple domain controllers or intend to use site replication, you may need to configure Active Directory Sites and Services to accommodate the new location.
- Backups:
Before moving the domain controller, ensure you have a full backup of the system, including the system state and Active Directory data.
- Test Connectivity:
After moving the domain controller, test connectivity from client machines and other servers to ensure that everything is working correctly.
- Time Synchronization:
The domain controller should synchronize time with an authoritative time source. Ensure this setting is correctly configured after the move.
I hope the information above is helpful.
If you have any question or concern, please feel free to let us know.
Best Regards,
Daisy Zhou