c# - Botframework Web 应用程序 Azure IDX20803 : Unable to obtain configuration from: '[PII is hidden]

Question

我们的机器人有问题

过去 4 个月运行良好，没有出现任何错误。

但是今天我们收到了相关错误:

2018-12-17T17:50:25  PID[5736] Error       
Error refreshing OpenId configuration: System.InvalidOperationException: 
    IDX20803: Unable to obtain configuration from: '[PII is hidden]'. 
            ---> System.IO.IOException: IDX20804: Unable to retrieve document from: '[PII is hidden]'. 
            ---> System.Net.Http.HttpRequestException: An error occurred while sending the request. 
            ---> System.Net.WebException: The underlying connection was closed: An unexpected error occurred on a send. 
            ---> System.IO.IOException: Unable to read data from the transport connection: An existing connection was forcibly closed by the remote host. 
            ---> System.Net.Sockets.SocketException: An existing connection was forcibly closed by the remote host

完整的日志文件在此链接中显示:https://pastebin.com/ZLx9G9W7

我认为这是一个异常(exception)，因为 IIS 配置也是如此，但我们没有对此进行任何更改。

提前谢谢您。

Answer 1

好的，我已经与 Microsoft 的工程师通了电话。他们告诉我 BotFramework 不再支持 TLS 1.0，我们必须迁移到版本 1.2。他们在博客文章中宣布了这一点:https://blog.botframework.com/2018/11/06/announcement-azure-bot-service-enforcing-transport-layer-security-tls-1-2/

通过在启动代码中添加此行来修复我的机器人(在我的例子中，它是 Global.asax.cs 中的 Application_Start):

System.Net.ServicePointManager.SecurityProtocol = System.Net.SecurityProtocolType.Tls12;