Scripts to manage Active Dorectory Sites and Subnets

Creating an Active Directory Site
Creating an Active Directory Site Link
Creating an Active Directory Subnet
Deleting an Active Directory Subnet
Determining if a Domain Controller is in a Site
Determining the Protocols Over Which a Bridgehead Server Replicates
Enumerating All Domain Controllers

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Creating an Active Directory Site

Creates an Active Directory site and sets the site link for the new site.

strSiteRDN      = "cn=Ga-Atl-Sales"
strSiteLinkRDN  = "cn=DEFAULTIPSITELINK"
strSiteLinkType = "IP"                      ' Valid values: "IP" or "SMTP"
 
Const ADS_PROPERTY_APPEND = 3
 
Set objRootDSE = GetObject("LDAP://RootDSE")
strConfigurationNC = objRootDSE.Get("configurationNamingContext")
strSitesContainer = "LDAP://cn=Sites," & strConfigurationNC
 
Set objSitesContainer = GetObject(strSitesContainer)
 
Set objSite = objSitesContainer.Create("site", strSiteRDN)
objSite.SetInfo
 
Set objLicensingSiteSettings = objSite.Create("licensingSiteSettings", _
    "cn=Licensing Site Settings")
objLicensingSiteSettings.SetInfo
 
Set objNtdsSiteSettings = objSite.Create("nTDSSiteSettings", _
     "cn=NTDS Site Settings")
objNtdsSiteSettings.SetInfo
 
Set objServersContainer = objSite.Create("serversContainer", "cn=Servers")
objServersContainer.SetInfo
 
strSiteLinkPath = "LDAP://" & strSiteLinkRDN & ",cn=" & strSiteLinkType & _
    ",cn=Inter-Site Transports,cn=Sites," & strConfigurationNC
 
Set objSiteLink = GetObject(strSiteLinkPath)
objSiteLink.PutEx ADS_PROPERTY_APPEND, "siteList", _
                  Array(objSite.Get("distinguishedName"))
objSiteLink.SetInfo

Creating an Active Directory Site Link

Creates an Active Directory site link.

strSite1Name    = "Ga-Atl-Sales"
strSite2Name    = "Wa-Red-Sales"
strSiteLinkRDN  = "cn=[" & strSite1Name & "][" & strSite2Name & "]"
intCost         = 100
intReplInterval = 60
strDescription  = "[" & strSite1Name & "][" & strSite2Name & "]"
 
Const ADS_PROPERTY_UPDATE = 2
 
Set objRootDSE = GetObject("LDAP://RootDSE")
strConfigurationNC = objRootDSE.Get("configurationNamingContext")
 
strSite1DN = "cn=" & strSite1Name & ",cn=Sites," & strConfigurationNC
strSite2DN = "cn=" & strSite2Name & ",cn=Sites," & strConfigurationNC
 
Set objInterSiteTransports = GetObject("LDAP://" & _
    "cn=IP,cn=Inter-Site Transports,cn=Sites," & strConfigurationNC)
 
Set objSiteLink = objInterSiteTransports.Create("siteLink", strSiteLinkRDN)
objSiteLink.Put "cost",         intCost
objSiteLink.Put "replInterval", intReplInterval
objSiteLink.Put "description",  strDescription

 
objSiteLink.PutEx ADS_PROPERTY_UPDATE, "siteList", _
                  Array(strSite1DN, strSite2DN)
objSiteLink.SetInfo

Creating an Active Directory Subnet

Creates an Active Directory subnet.

strSubnetRDN     = "cn=192.168.1.0/26"
strSiteObjectRDN = "cn=Ga-Atl-Sales"
strDescription   = "192.168.1.0/255.255.255.192"
strLocation      = "USA/GA/Atlanta"
 
Set objRootDSE = GetObject("LDAP://RootDSE")
strConfigurationNC = objRootDSE.Get("configurationNamingContext")
 
strSiteObjectDN = strSiteObjectRDN & ",cn=Sites," & strConfigurationNC
 
strSubnetsContainer = "LDAP://cn=Subnets,cn=Sites," & strConfigurationNC
 
Set objSubnetsContainer = GetObject(strSubnetsContainer)
 
Set objSubnet = objSubnetsContainer.Create("subnet", strSubnetRDN)
objSubnet.Put "siteObject",  strSiteObjectDN
objSubnet.Put "description", strDescription

objSubnet.Put "location",    strLocation
objSubnet.SetInfo

Deleting an Active Directory Subnet

Deletes an Active Directory subnet.

strSubnetCN = "cn=192.168.1.0/26"
 
Set objRootDSE = GetObject("LDAP://RootDSE")
strConfigurationNC = objRootDSE.Get("configurationNamingContext")
 
strSubnetsContainer = "LDAP://cn=Subnets,cn=Sites," & strConfigurationNC
 
Set objSubnetsContainer = GetObject(strSubnetsContainer)
objSubnetsContainer.Delete "subnet", strSubnetCN

Determining if a Domain Controller is in a Site

Checks if a domain controller is in a specific Active Directory site.

strDcName = "atl-dc-01"
strSiteName = "ga-atl-sales"
 
Set objADSysInfo = CreateObject("ADSystemInfo")
strDcSiteName = objADSysInfo.GetDCSiteName(strDcName)
 
If UCase(strSiteName) = UCase(strDcSiteName) Then
    WScript.Echo "TRUE: " & strDcName & " is in site " & strSiteName
Else
    WScript.Echo "FALSE: " & strDcName & " is NOT in site " & strSiteName
End If

Determining the Protocols Over Which a Bridgehead Server Replicates

Reads the bridgeheadTransportList from a domain controller in a site.

On Error Resume Next
   
Set objServer = GetObject _
    ("LDAP://CN=SEA-DC-01,CN=Servers,CN=Default-First-Site-Name,"  & _
        " CN=Sites,CN=Configuration,DC=fabrikam,DC=com")
 
dnBHTList = objServer.GetEx("bridgeheadTransportList")
 
WScript.Echo "Bridge Head Transport List:"
WScript.Echo "This multi-valued attribute lists the protocol" & _
    "transports over which this BridgeHead Server replicates"
For Each dnValue in dnBHTList
    WScript.Echo dnValue
Next

Enumerating All Domain Controllers

Returns a list of all the domain controllers in the fabrikam.com domain.

Const ADS_SCOPE_SUBTREE = 2
Set objConnection = CreateObject("ADODB.Connection")
Set objCommand = CreateObject("ADODB.Command")
objConnection.Provider = "ADsDSOObject"
objConnection.Open "Active Directory Provider"
Set objCOmmand.ActiveConnection = objConnection
 
objCommand.CommandText = _
    "Select distinguishedName from 'LDAP://cn=Configuration,DC=fabrikam,DC=com' " _
        & "where objectClass='nTDSDSA'" 
objCommand.Properties("Page Size") = 1000
objCommand.Properties("Timeout") = 30 
objCommand.Properties("Searchscope") = ADS_SCOPE_SUBTREE 
objCommand.Properties("Cache Results") = False 
Set objRecordSet = objCommand.Execute
objRecordSet.MoveFirst
 
Do Until objRecordSet.EOF
    Wscript.Echo "Computer Name: " & objRecordSet.Fields("distinguishedName").Value
    objRecordSet.MoveNext
Loop