使用c#和TLSv1.2连接到LDAP

using System;
using System.DirectoryServices.Protocols;

class Program
{
    static void Main()
    {
        string ldapServer = "ldap.example.com";
        int ldapPort = 389;
        string username = "cn=admin,dc=example,dc=com";
        string password = "password";
        string searchBase = "dc=example,dc=com";
        string searchFilter = "(objectClass=user)";

        LdapConnection connection = new LdapConnection(ldapServer + ":" + ldapPort);
        connection.SessionOptions.ProtocolVersion = 3;
        connection.SessionOptions.SecureSocketLayer = true;
        connection.SessionOptions.VerifyServerCertificate = (conn, cert) => true;
        connection.AuthType = AuthType.Basic;
        connection.Credential = new System.Net.NetworkCredential(username, password);

        connection.Bind();

        SearchRequest searchRequest = new SearchRequest(
            searchBase,
            searchFilter,
            SearchScope.Subtree,
            null
        );

        SearchResponse searchResponse = (SearchResponse)connection.SendRequest(searchRequest);

        foreach (SearchResultEntry entry in searchResponse.Entries)
        {
            Console.WriteLine("DN: " + entry.DistinguishedName);
            foreach (string attributeName in entry.Attributes.AttributeNames)
            {
                foreach (object attributeValue in entry.Attributes[attributeName].GetValues(typeof(string)))
                {
                    Console.WriteLine(attributeName + ": " + attributeValue);
                }
            }
        }

        connection.Dispose();
    }
}