Dynamic Ip Restriction on Runtime

Question

I want to add/remove IP restriction on run time to a MVC 5 project.

I did a search and found two ways.

Change Dynamic Ip Restriction module on runtime.

using System;
using System.Text;
using Microsoft.Web.Administration;

internal static class Sample
    {
       private static void Main()
       {
          using (ServerManager serverManager = new ServerManager())
          {
             Configuration config = serverManager.GetApplicationHostConfiguration();
             ConfigurationSection ipSecuritySection = config.GetSection("system.webServer/security/ipSecurity", "Default Web Site");
             ConfigurationElementCollection ipSecurityCollection = ipSecuritySection.GetCollection();



   ConfigurationElement addElement = ipSecurityCollection.CreateElement("add");
     addElement["ipAddress"] = @"192.168.100.1";
     addElement["allowed"] = false;
     ipSecurityCollection.Add(addElement);

     ConfigurationElement addElement1 = ipSecurityCollection.CreateElement("add");
     addElement1["ipAddress"] = @"169.254.0.0";
     addElement1["subnetMask"] = @"255.255.0.0";
     addElement1["allowed"] = false;
     ipSecurityCollection.Add(addElement1);

     serverManager.CommitChanges();
         }
       }
     }

In this way, does serverManager.CommitChanges restart the IIS or application ?

Best way to implement request throttling in ASP.NET MVC?

I will use throttling for this purpose.

If the application or IIS hasn't been restarted, I would prefer first way because it's on IIS level.

Do you have any suggestion which one is the best or any other approaches ?

Erkan Demirel · Accepted Answer · 2015-04-03T11:15:16.670

First way restarts the application. Second way is working on action level (objects are created already).

Therefore, I'm blocking/redirecting request on Begin_Request. I'm adding ips which I want to block to cache. Then I'm reading cache value on begin request if request ip is in blacklist I'm redirecting it to 404.html.

  private void Application_BeginRequest(object sender, EventArgs e)
    {
        using (var mylifeTimeScope = IoCBootstrap.Container.BeginLifetimeScope())
        {

            var ipHelper = mylifeTimeScope.Resolve<IIpHelper>();
            if (ipHelper.BlackListIp())
            {
                HttpContext.Current.Response.StatusCode = 404;
                HttpContext.Current.Response.Redirect("404.html");
            }
         }
    }

ipHelper.BlackListIp() checks ip is in blacklist or not.

Dynamic Ip Restriction on Runtime

1 Answers1