Syatem.Net.WebException：基础连接已经关闭：未能为 SSL／TLS 安全通道建立信任关系。

错误日志

---→System.Security.Authentication.AuthenticationException：根据验证过程，远程证书无效。 在System.Net.Security.SslState.StartSendAuthResetSignal(ProtocolToken message,AsyncProtocolRequest asyncRequest, Exception exception) 在System.Net.Security.SslState.CheckCompletionBeforeNextReceive(ProtocolToken message,AsyncProtoco1Request asyncRequest) 在System.Net.Security.SslState.StartSendBlob(Byte[] incoming, Int32 count, AsyncProtocolRequest asyncRequest) 在System.Net.Security.SslState.ProcessReceivedBlob(Byte[] buffer, Int32 count, AsyncProtocolRequest asyncRequest) 在System.Net.Security.SslState.StartReadFrame(Byte[] buffer, Int32 readBytes,AsyncProtocolRequest asyncRequest) 在Syatem.Net.Security.SslState.StartReceiveBlob(Byte[] buffer, AsyncProtocolRequest asyncRequest)System.Net.Security.SslState.CheckCompletionBeforeNextReceive(ProtocolToken message,AsyncProtocolRequSyatem.Net.WebException：基础连接已经关闭：未能为 SSL／TLS 安全通道建立信任关系。est asyncRequest) System.Net.Security.SslState.StartSendB1ob(Byte[] incoming, Int32 count,AsyncProtocolRequest asyncRequest)在System.Net.Security.SslState.ProcessReceivedBlob(Byte[] buffer, Int32 count, AsyncProtocolRequest asyncRequest) 在System.Net.Security.SslState.StartReadFrame(Byte[] buffer,Int32 readBytes, AsyncProtocolRequest asyncRequest) 在System.Net.Security.SslState.StartReceiveBlob(Byte[] buffer, AsyncProtocolRequest asyncRequest) 在System.Net.Security.SslState.CheckCompletionBeforeNextReceive(Protoco1Token message,AsyncProtocolRequest asyncRequest) 在System.Net.Security.SslState.StartSendBlob(Byte[] incoming,Int32 count, AsyncProtocolRequest asyncRequest) 在System.Net.Security. SslState. ProcessReceivedBlob (Byte[] buffer, Int32 count, AsyncProtocolRequest asyncRequest) 在System.Net.Security.SslState.StartReadFrame(Byte[] buffer, Int32 readBytes,AsyncProtocolRequest asyncRequest) 在System.Net.Security.SslState.StartReceiveBlob(Byte[] buffer, AsyncProtocolRequest asyncRequest) 在System.Net.Security.SslState.CheckCompletionBeforeNextReceive (ProtocolToken message, AsyncProtocolRequest asyncRequest) 在System.Net.Security.SslState.StartSendB1ob(Byte[] incoming,Int32 count,AsyncProtoco1Request asyncRequest) 在System.Net.Security.SslState.ProcessReceivedBlob(Byte[] buffer, Int32 count,AsyncProtocolRequest asyncRequest) 在System.Net.Security.SslState.StartReadFrame(Byte[] buffer,Int32 readBytes, AsyncProtocolRequest asyncRequest) 在System.Net.Security.SslState.StartReceiveBlob (Byte[] buffer, AsyncProtocolRequest asyncRequest) 在System.Net.Security.SslState.CheckCompletionBeforeNextReceive (ProtocolToken message, AsyncProtocolRequest asyncRequest) 在System.Net.Security.SslState.StartSendB1ob (Byte[] incoming,Int32 count,AsyncProtocolRequest asyncRequest) 在System.Net.Security.SslState.ProcessReceivedBlob(Byte[] buffer, Int32 count, AsyncProtocolRequest asyncRequest) 在System.Net.Security.SslState.StartReadFrame (Byte[] buffer, Int32 readBytes,AsyncProtocolRequest asyncRequest) 在System.Net.Security.SslState.StartReceiveBlob(Byte[] buffer, AsyncProtocolRequest asyncRequest) 在System.Net.Security.SslState.CheckComp let ionBeforeNextReceive(ProtocolToken message, AsyncProtocolRequest asyncRequest) 在System.Net.Security.SslState.StartSendBlob(Byte[] incoming, Int32 count,AsyncProtocolRequest asyncRequest) 在System.Net.Security.SslState.ProcessReceivedBlob(Byte[] buffer, Int32 count, AsyncProtocolRequest asyncRequest) 在System.Net.Security.SslState.StartReadFrame(Byte[] buffer,Int32 readBytes,AsyncProtocolRequest asyncRequest) 在System.Net.Security.SslState.StartReceiveBlob(Byte[] buffer, AsyncProtocolRequest asyncRequest) 在System.Net.Security.SalState.CheckCompletionBeforeNextReceive(ProtocolToken message,AsyncProtocolRequest asyncRequest) 在System.Net.Security.SslState.StartSendB1ob(Byte[] incoming, Int32 count,AsyncProtocolRequest asyncRequest) 在System.Net.Security.SslState.ProcessReceivedBlob(Byte[] buffer,Int32 count, AsyncProtocolRequest asyncRequest) 在System.Net.Security.SslState.StartReadFrame(Byte[] buffer, Int32 readBytes, AsyncProtocolRequest asyncRequest) 在System.Net.Security.SslState.StartReceiveBlob(Byte[] buffer, AsyncProtocolRequest asyncRequest) 在System.Net.Security.SalState.CheckCompletionBeforeNextReceive(ProtocolToken message, AsyncProtocolRequest asyncRequest) 在System.Net.Security.SslState.StartSendBlob(Byte[] incoming,Int32 count,AsyncProtocolRequest asyncRequest) 在System.Net.Security.SslState.ForceAuthentication(Boolean receiveFirst, Byte[] buffer, AsyncProtocolRequest asyncRequest) System.Net.Security.SslState.ProcessAuthentication(LazyAsyncResult lazyResult)System.Net.TlsStream.CallProcessAuthentication(Object state)Syatem.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext,ContextCallback callback, Object state,Boolean preserveSyncCtx) System.Threading.Execut ionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state,Boolean preserveSyncCtx)System.Threading.ExecutionContext.Run(ExecutionContext executionContext,ContextCallback callback, Object state) System.Net.TlsStream.Processhuthentication(LazyAsyncResult result)在System．Net．TlsStream．Write（Byte［］ buffer， Int32 offset， Int32 size） 在System．Net．PooledStream．Write（Byte［］ buffer， Int32 offset， Int32 size） 在System.Net.ConnectStream.WriteHeaders（Boolean async）

二、错误原因

本次服务是由Nginx从内网代理到外网，再从外网代理到内网，并在内网中通过ip和端口号进行访问。经过查询，是由于一个Nginx的协议修改后，并未对另一个Nginx进行修改。

三、解决办法

将两个Nginx的协议进行同步修改。