Active Directory Copy to a test environment

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Active Directory
I've copied an AD from production environment to a test environment. Now I must modify it to prevent conflict with the production environment. Please help. The IP of the physical server has been changed.

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*** Updated by Wrobinson on 4/18/08 ***

Do not connect the copy of the Active Directory environment on the production network under any circumstances, even if the IP address and computer name is changed. Severe consequences can result, including the corruption of AD beyond repair, requiring it to be recovered from backup.

You need to isolate these two environments completely, which will eliminate the need to re-IP and rename servers. In some instances, a firewall is used to provide such isolation but the best method of doing so is for the two separate networks not to have any common thread what-so-ever.

*** End update ***

Changing your IP address on an Active Directory Domain Controller can cause many issues with the DNS server on that machine.

To change the IP address complete the following steps:

Select: Start Settings Network and Dial Up Connections
Select: Your Local Area Connection
Select: Internet Connections (TCP/IP) Properties
Change: Your IP Address and Subnet Mask and Gateway
Change: Preferred DNS server’s address to the new server address
Select: OK OK Close
Your server’s address is now changed

Select: Start Programs Administrative Tools DNS
Double click Forward Look Up Zones
Double click your server name
Delete: Your type A records
Reset your information in your SOA and NS records
Exit DNS

Drop down to a MS DOS prompt and type the following: ipconfig /flushdns Enter
Net Stop DNS Enter
Net Start DNS Enter
Net Stop Netlogon Enter
Net Start Netlogon Enter
ipconfig /registerdns Enter

You can now go back to DNS and make sure the records were all created and they should have changed the address to the correct address on their own.

Now run nslookup from a MS DOS prompt and see if all is resolved OK or not. It the names and IP addresses all resolve correctly you are correct. If not then go back to nslookup and do the following:

I found I had to type set root=000app02.now.com (the name of my DNS Domain) and hit enter
When the prompt returns type exit to exit out of nslookup.

Then when I typed nslookup it resolved the name correctly.

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