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active directory - "A referral was returned from the server" exception when accessing AD from C#

DirectoryEntry oDE = new DirectoryEntry("LDAP://DC=Test1,DC=Test2,DC=gov,DC=lk");

using (DirectorySearcher ds = new DirectorySearcher(oDE))
{
    ds.PropertiesToLoad.Add("name");
    ds.PropertiesToLoad.Add("userPrincipalName");

    ds.Filter = "(&(objectClass=user))";

    SearchResultCollection results = ds.FindAll();

    foreach (SearchResult result in results)
    {
        Console.WriteLine("{0} - {1}",
            result.Properties["name"][0].ToString(),
            result.Properties["userPrincipalName"][0].ToString());
    }
}

On the SearchResultCollection results = ds.FindAll(); line I get an exception:

A referral was returned from the server

Why do I get that exception and what does it mean?

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1 Reply

0 votes
by (71.8m points)

Probably the path you supplied was not correct. Check that.

I would recomment the article Howto: (Almost) Everything In Active Directory via C# which really helped me in the past in dealing with AD.


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