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August 18, 2009

PowerShell Script Lists Group Hierarchies in Any LDAP Directory

The System.DirectoryServices.Protocols namespace makes it possible
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Executive Summary:
You can extend PowerShell's capabilities by taking advantage of the Microsoft .NET Framework. If you work with non-Microsoft LDAP directories, one particularly useful .NET tool is the System.DirectoryServices.Protocols (S.DS.P) namespace. Here's an example of how to use the System.DirectoryServices.Protocols namespace in a PowerShell script. The PowerShell script produces a comma-delimited list of groups in a directory container, including all nested group relationships. It works with Active Directory (AD) and non-Microsoft LDAP directories.

At face value, the request was simple. A colleague asked if we could provide him with a tool that would produce a comma-delimited list of groups in a directory container, including all nested group relationships. For example, if GroupA contains GroupB as a member and GroupB contains GroupC as a member, then show the group hierarchy as

GroupA, GroupB, GroupC

Then, for GroupB, the hierarchy would be . . .


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