Restrict IP Address to access Web Application

Question

I have publish my Web Application in IIS and I getting Error while running

Server Error in '/' Application.

Configuration Error Description: An error occurred during the processing of a configuration file required to service this request. Please review the specific error details below and modify your configuration file appropriately.

Parser Error Message: Could not load type 'SecurityHttpModule'.

My Web Config Like

    <httpModules>  
    <add name="SecurityHttpModule type="SecurityHttpModule"/>
    </httpModules>  

My SecurityHttpModule Like

    using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Web;
    public interface IHttpModule
    { }
    namespace BankSuite 
    {
    public class SecurityHttpModule : IHttpModule
    {
    public SecurityHttpModule() { }

    public void Init(HttpApplication context)
    {
        context.BeginRequest += new EventHandler(Application_BeginRequest);
    }

    private void Application_BeginRequest(object source, EventArgs e)
    {
        HttpContext context = ((HttpApplication)source).Context;
        string ipAddress = context.Request.UserHostAddress;
        if (!IsValidIpAddress(ipAddress))
        {
            context.Response.StatusCode = 403;  // (Forbidden)

        }
    }

    private bool IsValidIpAddress(string ipAddress)
    {
        return (ipAddress == "127.0.0.1");
    }

    public void Dispose() { /* clean up */ }
    }
    }

Answer 1

It seems like you are missing a closing quote on the name make sure it is not like that in reall config

Try specify using Fully qualified name such as NamespaceQualifiedTypeName, AssemblyName

so something like BankSuite.SecurityHttpModule, AssemblyName - where AssemblyName correspond to your dll name

also if you are using iis 7+ with integrated mode, use

<configuration>
<system.webServer>
    <modules>
        <add name="SecurityHttpModule" type="BankSuite.SecurityHttpModule, AssemblyName"/>
    </modules>
</system.webServer>
</configuration>

instead.