How do I get the list of "distinguished name" of all security groups from active directory using C#

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Hi,

Anyone here know how to get the list of "distinguished name" of security groups in an Organisation Unit (OU) from Active directory using c# code?

I have used the below code which will give only the list of "distinguished name" of all the OUs from active directory. But what I want is to get the list of "distinguished name" of all the SECURITY GROUP INSIDE THAT OU.

What I have tried:

C#

public static List<string> ListOu()
    {
        List<string> ous = new List<string>();
        using (DirectoryEntry root = new DirectoryEntry("LDAP://dc=DOMAIN,dc=COM"))
        {
            DirectorySearcher searcher = new DirectorySearcher(root);
            searcher.Filter = "(&(objectClass=organizationalUnit))";
            searcher.SearchScope = SearchScope.Subtree;
            searcher.PropertiesToLoad.Add("distinguishedName");

            var result = searcher.FindAll();
            foreach (SearchResult entry in result)
            {
                ous.Add(entry.GetDirectoryEntry().Properties["distinguishedName"].Value.ToString());
            }        

            result.Dispose();
            searcher.Dispose();
        }
        return ous;
    }

Posted 5-Feb-18 22:26pm

Adarsh A Nair

Updated 6-Feb-18 13:50pm

Maciej Los

v2

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an0ther1 · Accepted Answer · 2018-02-06T13:50:00

The distinguished name for a Security Group includes the Organisational Unit, therefore instead of getting the Units in the first place, just query for all Groups

C#

public static List<string> ListOu()
    {
        List<string> ous = new List<string>();
        using (DirectoryEntry root = new DirectoryEntry("LDAP://dc=DOMAIN,dc=COM"))
        {
            DirectorySearcher searcher = new DirectorySearcher(root);
            // Get all Groups
            searcher.Filter = "(&(objectClass=group))";
            searcher.SearchScope = SearchScope.Subtree;
            searcher.PropertiesToLoad.Add("distinguishedName");

            SearchResultCollection result = searcher.FindAll();
            foreach (SearchResult entry in result)
            {
        ous.Add(entry.GetDirectoryEntry().Properties["distinguishedName"].Value.ToString());                           
            }        

            result.Dispose();
            searcher.Dispose();
        }
        return ous;
    }

Kind Regards