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Active Directory Cookbook by Robbie Allen

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3.10. Finding a Domain Controller’s Site

Problem

You need to determine the site of which a domain controller is a member.

Solution

Using a graphical user interface

  1. Open LDP and from the menu, select Connection Connect.

  2. For Server, enter the name of a domain controller (or leave blank to do a serverless bind).

  3. For Port, enter 389.

  4. Click OK.

  5. From the menu select Connection Bind.

  6. Enter credentials of a domain user.

  7. Click OK.

  8. From the menu, select Browse Search.

  9. For BaseDN, type the distinguished name of the Sites container (e.g., cn=sites,cn=configuration,dc=rallencorp, dc=com).

  10. For Scope, select Subtree.

  11. For Filter, enter:

    (&(objectcategory=server)(dnsHostName=<DomainControllerName>))
  12. Click Run.

Using a command-line interface

> nltest /dsgetsite /server:<DomainControllerName> 

Using VBScript

' This code prints the site the specified domain controller is in
' ------ SCRIPT CONFIGURATION ------
strDC = "<DomainControllerName>"  ' e.g. dc1.rallencorp.com
' ------ END CONFIGURATION ---------

set objRootDSE = GetObject("LDAP://" & strDC & "/RootDSE")
set objNTDS = GetObject("LDAP://" & objRootDSE.Get("dsServiceName"))
set objSite = GetObject(GetObject(GetObject(objNTDS.Parent).Parent).Parent)
WScript.Echo objSite.Get("cn")

Discussion

Domain controllers are represented in the site topology by a server object and a child nTDSDSA object. Actually, any type of server can conceivably have a server object; it is the nTDSDSA object that differentiates domain controllers from other types of servers. You’ll often ...

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