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我正在使用 WebsocketSharp 网络标准库来创建一个 websocket 服务器。在我的 Web 应用服务中，Websocket 已启用。始终开启已启用。当我在本地运行此服务器时，我可以零问题地使用它。一旦我部署到 Azure Web App Service，我最终会收到一条错误消息，指出我正在访问一个禁止的端口：

Unhandled exception. System.InvalidOperationException: The underlying listener has failed to start.
 ---> System.Net.Sockets.SocketException (10013): An attempt was made to access a socket in a way forbidden by its access permissions.
   at System.Net.Sockets.Socket.UpdateStatusAfterSocketErrorAndThrowException(SocketError error, String callerName)
   at System.Net.Sockets.Socket.DoBind(EndPoint endPointSnapshot, SocketAddress socketAddress)
   at System.Net.Sockets.Socket.Bind(EndPoint localEP)
   at System.Net.Sockets.TcpListener.Start(Int32 backlog)
   at System.Net.Sockets.TcpListener.Start()
   at WebSocketSharp.Server.WebSocketServer.startReceiving()
   --- End of inner exception stack trace ---
   at WebSocketSharp.Server.WebSocketServer.startReceiving()
   at WebSocketSharp.Server.WebSocketServer.start(ServerSslConfiguration sslConfig)
   at WebSocketSharp.Server.WebSocketServer.Start()
   at socket_uph.Program.Main(String[] args) in C:\Users\CFarley\source\repos\socket-uph\Program.cs:line 25

到目前为止，我的代码是：

public class Program
{
    public static void Main(string[] args)
    {
        var wssv = new WebSocketServer(80);
        wssv.AddWebSocketService<ClientService>("/client");
        wssv.AddWebSocketService<DataService>("/data");
        wssv.Start();  //LINE 25
        while (true)
        {}
    }
}

当我发布时，构建和发布成功，但由于上述错误，应用程序无法启动。

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