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How do I install a second Domain Controller in my Active Directory domain on my Windows 2000 Server?
First make sure you read and understand Active Directory Installation Requirements. If you don t comply with all the requirements of that article you will not be able to set up your AD (for example: you don t have a NIC or you re using a computer that s not connected to a LAN).
Note: This article is only good for understanding how to install the SECOND DC in an EXISTING DOMAIN in and EXISTING AD FOREST.
Note: For the installation of the FIRST DC in the AD Domain read How to Install Active Directory on Windows 2000.
Lamer Note: For the installation of the FIRST DC in the AD Domain read How to Install Active Directory on Windows 2000 (for idiots).
Here is a quick list of what you must have:
This article assumes that all of the above requirements are fulfilled.
For a Windows 2000 version of this article please read How to Install a Replica DC in an Existing AD Domain on Windows Server 2003.
You must configure the would-be Domain Controller to use the IP address of the DNS server, so it will point to it when registering SRV records and when querying the DNS database.
Note: You MUST have an operational DNS server that already serves as the DNS server of the domain/forest.
After completing all the previous steps and after double checking your requirements you should now run Dcpromo.exe from the Run command.
Note: In Windows Server 2003, unlike Windows 2000, you can choose to install the Replica DC from a backed-up media thus saving considerable amounts of time and bandwidth. Read Install DC from Media in Windows Server 2003 for more info.
This step might take some time because the computer is searching for the DNS server.
Note: Although the wizard will let you get to the last window and begin to attempt to join the domain, if you enter the wrong username and/or password, because of the wrong credentials you ll get an error message like this one:
If you get the domain name wrong you ll get this warning:
The wizard will not be able to continue past the domain name window.
If you have wrong DNS settings, i.e. the computer “thinks” that it should be “talking” to one DNS server, while in fact it should be using another DNS server, you ll get an error message like this one:
You should now check to see if the AD installation went well.
One reason for the lack of registration of SRV records is the fact the net NETLOGON service has somehow failed to register the SRV Records in the DNS zone.
You should try to restart the NETLOGON service to force the SRV registration.
From the command prompt type “net stop netlogon“, and after it finishes, type “net start netlogon“.
Let it finish, go back to the DNS console, click your zone and refresh it (F5). If all is ok you ll now see the 4 SRV record folders.
If all of the above is ok, I think it s safe to say that your AD is properly installed.
If not, read Troubleshooting Dcpromo Errors.
Windows 2000 Deployment Planning Guide
Download the Deployment Planning Guide (Complete, 3.91mb)
Troubleshooting Common Active Directory Setup Issues in Windows 2000 – 260371
Setting Up the Domain Name System for Active Directory – 237675
Information About Configuring Windows 2000 for Domains with Single-Label DNS Names – 300684
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