Set callback for System.DirectoryServices.DirectoryEntry to handle self-signed SSL certificate?

Question

I have an application replicating data from a directory service using typical System.DirectoryServices.DirectoryEntry code. I now have a requirement to replicate from Novell

Answer 1

I have used below code to connect with ldaps using DirectoryEntry.

What i understood in my scenerio is directoryEntry does not work when ldaps is specified in server path or authentication type is mentioned as "AuthenticationTypes.SecureSocketsLayer" but if only ldaps port is mentioned at the end of server name it work. After having a look at wireshark log i can see handshake taking place as mentioned in above post.

Handshake:

Code:

public static SearchResultCollection GetADUsers()
    {
        try
        {
            List lstADUsers = new List();
            DirectoryEntry searchRoot = new DirectoryEntry("LDAP://adserver.local:636", "username", "password");
            DirectorySearcher search = new DirectorySearcher(searchRoot);
            search.PropertiesToLoad.Add("samaccountname");
            SearchResult result;
            SearchResultCollection resultCol = search.FindAll();
            Console.WriteLine("Record count " + resultCol.Count);
            return resultCol;
        }
        catch (Exception ex)
        {
            Console.WriteLine("exception" + ex.Message);
            return null;
        }
    }