An Attempt Was Made to Access a Socket in a Way Forbidden by Its Access Permissions

An attempt was made to access a socket in a way forbidden by its access permissions. Why?

Most likely the socket is held by some process. Use netstat -o to find which one.

An attempt was made to access a socket in a way forbidden by its access permissions (Bottle) (Python)

Does this problem go away when you try port 8000 instead of 80?

You're trying to bind to port 80. I don't know Windows, but on Linux your code would fail because port 80 (like all ports below 1024) is privileged--only root can bind to them. That's why you'll see most tutorials and web framework defaults use a high port number, typically 8000 or 8080.

References:

https://www.w3.org/Daemon/User/Installation/PrivilegedPorts.html

https://en.wikipedia.org/wiki/Registered_port

dotnet core 3.1 IIS Error An attempt was made to access a socket in a way forbidden by its access permissions (10013)

Finally I found my solution on my own. I removed UseKestrel() line from program.cs and everything's good.

        var config = new ConfigurationBuilder().AddCommandLine(args).Build();

       return  Host.CreateDefaultBuilder(args)
            .ConfigureWebHostDefaults(webBuilder =>
            {
                webBuilder.UseStartup<Startup>();
                webBuilder.UseKestrel(); **//remove this line.**
                webBuilder.UseUrls();
                webBuilder.UseIISIntegration();
                
            }).ConfigureServices((context, services) =>
            {
                services.AddHostedService<Worker>();
                services.AddHostedService<MonitorWorker>();
                services.AddHostedService<TransferWorker>();
            });

    }

---

Related Topics