Windows Server2003 upgrade to Windows server2012

Source: Internet
Author: User

Windows Server 2003 domain environment upgrade to Windows Server 2012

Experimental ideas:

Check the status of the DC

To unload a Windows Serverver 2003 domain:
Make sure that all DCs can replicate properly:
Point DNS to WIN2012
Manually transfer the operations master to the Win2012 machine before unloading the domain
If the times are wrong in the unload domain, then try again in the previous step.
Quit the Win2003 domain to become a workgroup.
Remove redundant records about Win2003 computers in DNS
To remove Win2003 information from AD Users and Computers
Remove Win2003 information from AD sites and services

To unload Windows Server 2008 domain

Lab environment to ensure that SERVER2003,SERVER2008,SERVER03 (server2012 computer name) communicates with each other, and that preferred DNS points to server2003

Experimental methods:

One: Promote server2003 to a domain controller

1: Install AD on server2003, run dcpromo command

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2: Create a new 2 domain user on server2003, wait for the upgrade to see if the user can synchronize the past

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To raise the forest functional level:

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3: Using Windows Server 2008 as a mediation, put the Windows Server 2008 installation disc in Windows 2003 DC:

(32-bit system: Adprep32.exe 64-bit system: adprep.exe)

The following lab 64-bit systems

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Forest preparation: Adprep/forestprep,

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Domain Preparation: Adprep/domainprep

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Group Policy Preparation: Adprep/domainprep/gpprep

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Read-only domain control preparation: Adprep/rodcprep

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Two: Create an additional domain controller on Windows Server 2008

Run the dcpromo command with the same installation method

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Three: Upgrade additional domain controllers on Windows Server 2012

Four: Check the status of the DC to ensure that all DCs can replicate normally: (Take server03 as an example)

Server Manager--active directory Sites and Services--servers

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Five: Uninstall domain control server2003, and add server2003 to workgroup State, preferred DNS point to Server03ip address

Run Dcpromo

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L VI: Uninstall domain control server2008, and add server2008 to workgroup State, preferred DNS point to Server03ip address

Run Dcpromo, method with five

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Seven: On the SERVER03

Active Directory Users and Computers--computers--Delete server2003,server2008

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Active Directory Sites and Services--servers--Delete server2003,server2008

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Run on SERVER03:
netdom computername The existing name (NETBIOS)/add the original hostname. Domain name. com
Add an old hostname based on an existing name

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netdom computername Existing name (NETBIOS)/makeprimary the original hostname. Domain name. com
Set the original hostname as the primary host name

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After restarting the domain controller:
Run netdom computername Legacy host name (NETBIOS)/remove the existing hostname. Domain name. com
Delete an existing host name

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User replication succeeds when Windows Server2003 is upgraded to Windows server2012

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Windows Server2003 upgrade to Windows server2012

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