从 Raspberry Pi 连接到 SQL 服务器导致错误 35（在登录前握手期间）

Question

我想问一下我能够从 Windows 很好地连接到 SQL Server 的原因是什么，但是当我尝试连接到同一台服务器时，使用相同的连接字符串和来自 Raspbian @ Raspberry Pi 的 server being pingable，则会发生此错误：

A connection was successfully established with the server, but then an error occurred during the pre-login handshake. (provider: TCP Provider, error: 35 - An internal exception was caught)

ex.InnerException {System.Security.Authentication.AuthenticationException: Authentication failed, see inner exception. ---> Interop+OpenSsl+SslException: SSL Handshake failed with OpenSSL error - SSL_ERROR_SSL. ---> Interop+Crypto+OpenSslCryptographicException: error:1425F102:SSL routines:ssl_choose_client_version:unsupported protocol --- End of inner exception stack trace --- at Interop.OpenSsl.DoSslHandshake(SafeSslHandle context, Byte[] recvBuf, Int32 recvOffset, Int32 recvCount, Byte[]& sendBuf, Int32& sendCount) at System.Net.Security.SslStreamPal.HandshakeInternal(SafeFreeCredentials credential, SafeDeleteContext& context, ArraySegment`1 inputBuffer, Byte[]& outputBuffer, SslAuthenticationOptions sslAuthenticationOptions)

我正在使用 System.Data.SqlClient

try
{
    using (var connection = new SqlConnection(connStr))
    {
        connection.Open();
    }
}
catch (Exception ex)
{
    ...
}

.NET 核心 3.1

我该如何解决？提前致谢

Answer 1

您可能需要更新 OpenSSL 版本。

sudo apt-get update
sudo apt-get install openssl

Answer 2

我按照 Leszek Mazur 建议安装（检查更新）OpenSSL：

sudo apt-get update
sudo apt-get install openssl

然后在 sudo nano /etc/ssl/openssl.cnf

我从 1.2 更改了最低版本的 TLS：

[system_default_sect]
MinProtocol = TLSv1.2

到 1.0:

[system_default_sect]
MinProtocol = TLSv1

从 Raspberry Pi 连接到 SQL 服务器导致错误 35（在登录前握手期间）

Connecting to SQL Server from Raspberry Pi results in Error 35 (during pre-login handshake)

c#

sql-server

.net-core

raspberry-pi3

raspbian