Test TCP and SSL Stream

test.cs

using System.Net.Security;
using System.Net.Sockets;
using System.Security.Cryptography.X509Certificates;

namespace ConsoleApp1;

public class Program
{
    public static async Task Main(string[] args)
    {
        var cancellationToken = new TaskCompletionSource<bool>();
        using var cts = new CancellationTokenSource(TimeSpan.FromSeconds(10));
        using var client = new TcpClient();
        try
        {
            var task = client.ConnectAsync(args[0], int.Parse(args[1]));
            using (cts.Token.Register(() => cancellationToken.TrySetResult(true)))
            {
                if (task != await Task.WhenAny(task, cancellationToken.Task))
                {
                    throw new Exception($"Unable to connect to {args[0]}:{args[1]} in after timeout");
                }
            }

            using (var ns = new SslStream(client.GetStream(), leaveInnerStreamOpen: false, userCertificateValidationCallback: HandleCertificateValidation))
            {
                await ns.AuthenticateAsClientAsync(args[0]);
            }
        }
        finally
        {
            client.Close();
        }
    }

    private static bool HandleCertificateValidation(object sender, X509Certificate? certificate, X509Chain? chain, SslPolicyErrors sslpolicyerrors)
    {
        return true;
    }
}