NegotiateStream rejects clients who are not local administrators

Question

I have a very simple client / server test that does not work with the message:

Server rejected client credentials.

If the client is not registered as an account with administrator rights on the server. I don’t want that.

Here is my client code:

var formatter = new BinaryFormatter();

...

using (var client = new TcpClient(ip, 1248))
using (var stream = client.GetStream())
using (var negStream = new NegotiateStream(stream, false))
{
    await negStream.AuthenticateAsClientAsync(CredentialCache.DefaultNetworkCredentials, string.Empty, ProtectionLevel.EncryptAndSign, TokenImpersonationLevel.Identification));
    formatter.Serialize(negStream, "This is a test!");
}

And here is my server code:

var listener = new TcpListener.Create(1248);
listener.Start();

var tcpClient = listener.AcceptTcpClient();
using (var stream = tcpClient.GetStream())
using (var negStream = new NegotiateStream(stream, false))
{
    await negStream.AuthenticateAsServerAsync(CredentialCache.DefaultNetworkCredentials, ProtectionLevel.EncryptAndSign, TokenImpersonationLevel.Identification));
    Console.WriteLine(formatter.Deserialize(negStream));
}

How to configure the server to accept any registered user? Is there another setting I need to look at? Is there another way to authenticate a stream with domain credentials?

Answer 1

It may seem crazy, but you can try, it worked for me anyway

- > → → → " "