September 2003
Intermediate to advanced
624 pages
15h 49m
English
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3.19. Finding the Global Catalog Servers in a Forest
Problem
You want a list of the global catalog servers in a forest.
Solution
Using a graphical user interface
Open LDP and from the menu select Connection → Connect.
For Server, enter the name of a DC.
For Port, enter 389.
Click OK.
From the menu select Connection → Bind.
Enter credentials of a domain user.
Click OK.
From the menu select Browse → Search.
For BaseDN, type the DN of the Sites container (e.g., cn=sites,cn=configuration,dc=rallencorp, dc=com).
For Scope, select Subtree.
For Filter, enter
(&(objectcategory=ntdsdsa)(options=1)).Click Run.
Using a command-line interface
> dsquery server -forest -isgc
Using VBScript
' This code prints the global catalog servers for the specified forest.
' ------ SCRIPT CONFIGURATION ------
strForestName = "<ForestDNSName>" ' e.g. rallencorp.com ' ------ END CONFIGURATION --------- set objRootDSE = GetObject("LDAP://" & strForestName & "/" & "RootDSE") strADsPath = "<LDAP://" & objRootDSE.Get("configurationNamingContext") & ">;" strFilter = "(&(objectcategory=ntdsdsa)(options=1));" strAttrs = "distinguishedname;" strScope = "SubTree" set objConn = CreateObject("ADODB.Connection") objConn.Provider = "ADsDSOObject" objConn.Open "Active Directory Provider" set objRS = objConn.Execute(strADsPath & strFilter & strAttrs & strScope) objRS.MoveFirst while not objRS.EOF set objNTDS = GetObject("LDAP://" & objRS.Fields(0).Value) set objServer = GetObject( objNTDS.Parent ) Wscript.Echo objServer.Get("dNSHostName") ...Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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