生产环境Web端是centos系统，DB在window环境，sql server2014，运行报错如下

[zxingdream]

14:39:54.973 7 Y TP System.IO.IOException: Received an unexpected EOF or 0 bytes from the transport stream.
at System.Net.Security.SslStream.ReceiveHandshakeFrameAsync[TIOAdapter](CancellationToken cancellationToken)
at System.Net.Security.SslStream.ForceAuthenticationAsync[TIOAdapter](Boolean receiveFirst, Byte[] reAuthenticationData, CancellationToken cancellationToken)
at System.Net.Security.SslStream.AuthenticateAsClient(SslClientAuthenticationOptions sslClientAuthenticationOptions)
at Microsoft.Data.SqlClient.SNI.SNITCPHandle.EnableSsl(UInt32 options)
at Microsoft.Data.SqlClient.SNI.TdsParserStateObjectManaged.EnableSsl(UInt32& info, Boolean tlsFirst, String serverCertificateFilename)
14:39:54.974 7 Y TP 全局异常：全局异常捕抓
Received an unexpected EOF or 0 bytes from the transport stream.
14:39:54.975 7 Y TP System.IO.IOException: Received an unexpected EOF or 0 bytes from the transport stream.
at System.Net.Security.SslStream.ReceiveHandshakeFrameAsync[TIOAdapter](CancellationToken cancellationToken)
at System.Net.Security.SslStream.ForceAuthenticationAsync[TIOAdapter](Boolean receiveFirst, Byte[] reAuthenticationData, CancellationToken cancellationToken)
at System.Net.Security.SslStream.AuthenticateAsClient(SslClientAuthenticationOptions sslClientAuthenticationOptions)
at Microsoft.Data.SqlClient.SNI.SNITCPHandle.EnableSsl(UInt32 options)
at Microsoft.Data.SqlClient.SNI.TdsParserStateObjectManaged.EnableSsl(UInt32& info, Boolean tlsFirst, String serverCertificateFilename)

看提示好像是连接问题，但是我测试了，ping ip和1433端口都是通的 不知道问题出哪儿了，另外开发环境里测试正常

[nodyang]

我猜的 SQL Server 没有启用加密或使用不兼容的加密协议。

[shuxinqin]

没遇上过，但这类问题基本是与ORM框架没关系，建议从数据库连接驱动，链接配置，数据库配置等方面着手排查~