C# SSH tunneled mongodb

gistfile1.txt

                    Console.WriteLine($"SSH Tunnel Start");

                    PrivateKeyFile[] key1 = new PrivateKeyFile[] { new PrivateKeyFile("C:\\Users\\Administrator\\.ssh\\fifasports2.pem") };
                    List<AuthenticationMethod> method1 = new List<AuthenticationMethod>();
                    method1.Add(new PrivateKeyAuthenticationMethod("centos", key1));

                    using (var ssh = new SshClient(new ConnectionInfo("1.1.1.1", "centos", method1.ToArray())))
                    {
                        ssh.Connect();

                        var command = ssh.CreateCommand("hostnamectl");
                        var result = command.Execute();
                        Console.WriteLine(result);

                        var port = new ForwardedPortLocal(IPAddress.Loopback.ToString(), 27017, "mongo2.net", 27017);
                        ssh.AddForwardedPort(port);
                        port.Start();
                        Console.WriteLine($"Port is start = {port.IsStarted}");
                        
                        var client = new MongoClient($"mongodb://developer:=x=@127.0.0.1:27017/dbpull?authSource=admin&serverSelectionTimeoutMS=5000");
                        var database = client.GetDatabase("admin");
                        try
                        {
                            database.RunCommandAsync((Command<BsonDocument>)"{ping:1}").Wait();
                        }
                        catch (Exception ex)
                        {
                            Console.WriteLine(ex.InnerException.Message);
                            return;
                        }
                        Console.WriteLine("MONGO OK");
                        Console.WriteLine($"SSH Tunnel End");
                    }