Debian SSLStream Exception

Hi,

I have SSL exception when call AuthenticateAsClient on several web site on Debian 9. Work fine on windows 10.

Follow the test case (VS 2017 15.5.2): TestSSLStream.zip

c#
using System;
using System.IO;
using System.Net;
using System.Net.Security;
using System.Net.Sockets;

namespace TestSSLStream
{
    class Program
    {
        static void Main(string[] args)
        {
            Uri uri = new Uri(args[0]);
            IPHostEntry dns = Dns.Resolve(uri.Host);

            using (TcpClient client = new TcpClient())
            {
                client.Connect(/*dns.AddressList[0]*/uri.Host, uri.Port);
                client.ReceiveTimeout = 10000;

                using (SslStream sslStream = new SslStream(client.GetStream(), false))
                {
                    sslStream.AuthenticateAsClient(uri.Host);

                    // Check certificate
                    string expirationDate = sslStream.RemoteCertificate.GetExpirationDateString();

                    StreamWriter writer = new StreamWriter(sslStream);
                    writer.Write("GET " + uri.AbsolutePath + " HTTP/1.1\r\n");
                    writer.Write("Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8\r\n");
                    writer.Write("Accept-Encoding: gzip, deflate\r\n");
                    writer.Write("Accept-Language: fr,fr-FR;q=0.8,en-US;q=0.5,en;q=0.3\r\n");
                    writer.Write("User-Agent: Mozilla/5.0 (compatible; TestBot; TEST)\r\n");
                    writer.Write("Connection: close\r\n");
                    writer.Write("Host: " + uri.Host + "\r\n\r\n");
                    writer.Flush();

                    StreamReader reader = new StreamReader(sslStream);
                    string response = reader.ReadToEnd();
                }
            }
        }
    }
}

On debian:

dotnet --info

Microsoft .NET Core Shared Framework Host

Version : 2.0.4 Build : 7f262f453d8c8479b9af91d34c013b3aa05bc1ff

On debian, Exception when execute:

dotnet TestSSLStream.dll https://korben.info/ dotnet TestSSLStream.dll https://www.toutvendre.fr

work fine with certificate of github:

dotnet TestSSLStream.dll https://github.com

All certificate are not managed on debian 9 with ssl stream?

[EDIT] Added C# code from the zip file

该提问来源于开源项目：dotnet/runtime