Group Management in .NET framework

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Group Management
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In the NET class DirectoryEntry, there is an equivalent to the COM method IADSContainerMoveHere() with the method MoveTo() This method moves a directory entry to another container The target container has to be transferred as parameter in form of a second DirectoryEntry object
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Example for Moving a User Account
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In Listing 186, the user account Fox Mulder from the organization unit Agents is moved to the standard user container Users Listing 186 Moving an AD User Account
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# Move user $Path= "LDAP://XFilesServer1/CN=Walter Fox Mulder,OU=Agents,DC=FBI,DC=net" $target = "LDAP://XFilesServer1/CN=Users,DC=FBI,DC=net " $user = new-object systemdirectoryservicesdirectoryEntry($Path) $userPSBaseMoveTo($target) "Object has been moved!"
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In a directory object of the type group, there exists an attribute Member with LDAP paths to the group members To display the members of a group, you therefore only need a one-liner The following command shows the members of the group of all FBI agents:
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(new-object directoryservicesdirectoryentry ("LDAP://XFilesServer1/CN=All Agents,DC=FBI,DC=net"))member 18 USER AND GROUP MANAGEMENT IN THE ACTIVE DIRECTORY
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Nevertheless, this command displays only the direct members When a group contains another group, however, there are also indirect members The following function, Get-Members, which is implemented in Listing 187, fetches recursively all direct and indirect members of a group in the Active Directory Figure 182 shows the result
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18 User and Group Management in the AD
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Listing 187 Listing of Indirect Group Members
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####################################### # PowerShell Script # Display all direct and indirect members of a group # (C) Dr Holger Schwichtenberg # http://wwwwindows-scriptingcom/ ######################################## #(new-object directoryservicesdirectoryentry ("LDAP://x lesserver/CN=All FBI Employees,DC=FBI,DC=net"))member "Direct Group Members:" $group = New-Object directoryservicesdirectoryentry ("LDAP://x lesserver/CN=All FBI Employees,DC=FBI,DC=net") $groupmember function Get-Members ($group){ if ($groupobjectclass[1] -eq 'group') { "-- Group $($groupcn)" $Groupmember | foreach-object { $de = new-object directoryservicesdirectoryentry("LDAP://x lesserver/" + $_) if ($deobjectclass[1] -eq 'group') { Get-Members $de } Else { $dedistinguishedName } } } Else { Throw "$group is not a group" } } "--- Listing of Group Members:" "All Members (including non-direct):" Get-Members(new-object directoryservicesdirectoryentry( "LDAP://x lesserver/CN=All Employees,DC=FBI,DC=net"))
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Group Management
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Figure 182 Listing of Direct and Indirect Group Members
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Creating and Filling a Group
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You create a group in the same way as you create a user When creating groups, however, note the different class name (group) used, as compared to creating users: Listing 188 Creating a Group
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"Creating a group" $Path= "LDAP://XFilesServer1/DC=FBI,DC=net" $con = new-object systemdirectoryservicesdirectoryEntry($Path) $ou = $conPSBaseChildrenAdd("cn=All Directors","group") $ouPSBaseCommitChanges() $ousamaccountname = "AllDirectors" $ouDescription = "Group for FBI Directors" $ouPSBaseCommitChanges() ""Group was created!"
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18 USER AND GROUP MANAGEMENT IN THE ACTIVE DIRECTORY
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Assigning Group Members
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There are no speci c methods for the assignment of users to groups in the class DirectoryEntry Here, a WPS object once again enables access to the methods Add() and Remove() de ned in the COM interface IADsGroup (see Listings 189 and 1810)
18 User and Group Management in the AD
Listing 189 Adding Users to Groups
# Add a group member $Path= "LDAP://XFilesServer1/cn=All Directors,DC=FBI,DC=net" $gr = new-object systemdirectoryservicesdirectoryEntry($Path) $User = "LDAP://XFilesServer1/CN=Walter Skinner,OU=Directors,DC=FBI,DC=net" $ouAdd($User) "User " + $User + " have been added to the goup " + $ou + "
Listing 1810 Deleting Users from Groups
# Deleting a group member $Path= "LDAP://XFilesServer1/cn=All Directors,DC=FBI,DC=net" $gr = new-object systemdirectoryservicesdirectoryEntry($Path) $User = "LDAP://XFilesServer1/CN=Walter Skinner,OU=Directors,DC=FBI,DC=net" $ouRemove($User) "User " + $User + " have been deleted from group " + $ou + "
Organizational Units
How organization units (directory service class organizationalUnit) are created and deleted has already been demonstrated in 17, Directory Services When creating organization units, note the different class name (organizationalUnit) in the rst parameter and the different attribute name (OU) in the rst parameter of Add(), as compared to the creation of users or groups (see Listing 1811)
Summary
Listing 1811 Script to Create an OU
# Script to create an OU (The OU will be deleted if it already exists!) $ouPath= "LDAP://XFilesServer1/ou=Directors,DC=FBI,DC=net" $ou = new-object systemdirectoryservicesdirectoryEntry($ouPath) if ([systemdirectoryservicesdirectoryEntry]::Exists($ouPath)) { "OU already exists and will be deleted!" $ouPSBaseDeleteTree() } "Creating an OU" $Path= "LDAP://XFilesServer1/DC=FBI,DC=net" $con = new-object systemdirectoryservicesdirectoryEntry($Path) $ou = $conPSBaseChildrenAdd("ou=Directors","organizationalUnit") $ouPSBaseCommitChanges() $ouDescription = "FBI Directors" $ouPSBaseCommitChanges() "OU has been created!"
Summary
In this chapter, you learned the most common operations for user and group administration in the Active Directory Speci cally, you saw how to create users and groups through calls of the Add() method This chapter also covered deleting, renaming, and moving with the methods DeleteTree(), Rename(), and MoveTo()