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Adding RODC to Existing Server 2008 R2 Domain

I need to add a second RODC at a colocation and I'm wondering what the proper steps are as I've never had to add a second domain controller to a network before.

All the remote users are pointing to the PDC at 192.168.0.0.  I'm going to add the RODC with DNS and DHCP leasing a subnet of 192.168.1.0 to the colo network.  I've already joined the colo's workstations to the PDC, what do I need to do to have them point to the RODC? Do I do nothing? Do I just setup DHCP to point to the RODC for DNS?

Thanks.
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DangerousJeff
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Make sure the new server has a static IP and its dns server setting is set on the network interface.
Just run through the steps for creating a domain controller normally, but instead of creating a new domain in a new forest, join an existing domain. Later on make sure you check the RODC check box, leave the dns and GC server boxes checked. After done and rebooted add a forward lookup zone (active directory integrated) to dns and make sure every one is set to use it as a secondary dns (dhcp etc)

I think thats it, might need to do an adprep /rodcprep at some stage

check here
http://technet.microsoft.com/en-us/library/cc772234%28WS.10%29.aspx
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kevinhsieh
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This isn't a DR facility, but I like your points on redundancy so I will opt for a full domain controller role.

Do you have any tips or helpful links for setting up sites and services?
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Thanks for the replies guy.  Most points are awarded to kevinhsieh for experienced input.  The link to the M$ documentation on a second DC is the first thing I checked but I wanted some feedback from fellow experts :).
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Thanks