Limit user login in multiple RODC

Question

I have 2 RODC and a RWDC.i prepopulate some password on RODC1 And Some on RODC2 cache database. i already read this article http://www.frickelsoft.net/blog/?p=232
I want to limit user login in multiple RODC.(for example user1 can not login to os in different RODC).
So i want to know is there is a way to limit user to login just from its RODC cache database not RWDC active directory?(i want user in RODC1 cant not login to RODC2.How can i do this?)

Answer 1

Hi,
Do you want to restrict users from logging into a client computer that belongs to another site? Or do you want the users to get authenticated only to the RODC's where their credentials cached? 
If you configured your sites and services properly the clients will choose the DC belongs to their own site and subnet. DC locator is the service name which is responsible for assigning a logon DC to the client.If the DC's are in different sites you
can configure the sites and services to point the client to correct DC in a site. AD authentication always distributed based on the sites and services you configured.
You can configure ldapsrv records to authenticate against specific DC.
RODCs do not register Domain Name System (DNS) general records (records that are associated with the domain itself and not with a specific site), as read/write domain controllers (RWDCs) do. This is the default behavior of RODCs. Although you can tune an
RODC to register DNS general records, we recommend that you not change the default behavior.
The main impact of RODCs not registering DNS general records is that a client computer cannot find an RODC in its site without reaching an RWDC (that is, a domain controller that registers the general records) if the client computer does not have a record
for the name of the site where the client computer is placed.
Source: Placing Several RODCs in the Same Site
http://technet.microsoft.com/en-us/library/ee522995(WS.10).aspx
Domain Controller Locator : an overview
http://blogs.technet.com/b/arnaud_jumelet/archive/2010/07/05/domain-controller-locator-an-overview.aspx
LdapSrvWeight & LdapSrvPriority
http://blogs.dirteam.com/blogs/carlos/archive/2006/05/10/How-to-lessen-your-PDC_1920_s-load.aspx 
http://technet.microsoft.com/en-us/library/cc816793%28WS.10%29.aspx 
Regards,
Rafic
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