Security :: Windows Authentication Without Login Screen?

May 4, 2010

I am using FBA(Form Based Authen) and Windows Authentication for my web application. FBA is working fine with username and pwd. I want to use the same username, pwd for windows authentication without retering credentials in default login screen. How to avoid the default login screen with custom authentication..

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Security :: How To Integrate Application In Windows Login Screen

Jun 20, 2010

how to integrate a asp.net application in windows user Login screen?

I have a asp.net 2.0 application. Users can able to run this application from windows login screen before they login.

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Security :: Avoid Windows Login Userid And Password Window When Use Windows Authentication Mode For Website

Dec 30, 2010

I have been trying to avoid the windows login userid and password window when I use the Windows Authentication mode for a web site. I need to capture the the windows logon user name without prompting for the user id and password and display that on the web site. I had tried almost everything... changed authentication,security setups on IE and IIS etc... still not being able to avoid the window...

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Security :: Using Login Form With Windows Authentication?

Nov 25, 2010

I have developed an Interanet web application using the windows Active directory authentication if user find then it automaticaly authenticated working correctly now my user wants the capability of being able to login to the intranet site as another user by providing the username and Password . For example, Team lead needs to login on other team memeber System to pefrom some task on his behalf if he or she is not aviable in office .

I have created a standard MS Login Page. However when I try to login on the page only by providing the Username system authenitcate the user ( not validating the password of that user)

My Web.config is shown below

[Code]....

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Security :: Windows Authentication And Still Asking For Login Credentials?

Jul 20, 2010

I have an intranet web application, where i have windows authentication = true in web.config. I hear from end users that the website is aksing for their login credentials and they don't like it. By the way i am getting theusername from HttpContext.Current.User.Identity.Name and Domain Name from Mid(UserNameID, 1, InStr(UserNameID, "") - 1).In IIS, anonymous access is unchecked and Integrated wnidows authentication is selected.

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Security :: Login Control With Windows Authentication?

Apr 20, 2010

i want to create a login page and i have to use windows authentication. so what are the steps i have to follow to achive login contorl with windows authentication.

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Security :: Login Using Authentication Against Windows Active Directory?

Jul 30, 2010

I am using Visual web Developer 2010 Express.

I want to create a small intranet web site with a login page that will authenticate against groiups of users in Active Directory. So for example if someone in Group A logs in they can get to web page X and if someone from Group B logs on they can get to web page Y. Is it possible to do this with the login controls without writing code? I thought it would be a fairly standard thing to do.

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Security :: Windows Integrated Authentication Remove Login Dialogue Box?

Jul 26, 2010

I have an intranet set up with IIS and it is working fine with windows integrated autehntication. However I have some permissions set and when certain users do not have access they get prompted for their login and I don't want this. I want it to go straight to the access denied page.

I read that "In integrated Windows authentication, the browser tries to use the current user's credentials from a domain logon, and if this attempt is unsuccessful, the user is prompted to enter a user name and password. "

So I understand this is supposed to happen but I was wondering if there was anyway to not have it prompt for a username and password if the first attemp is unsuccessful.

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Security :: Login Failed - "The Login Is From An Untrusted Domain And Cannot Be Used With Windows Authentication"

Feb 5, 2011

I was wondering what the following error means: Login Failed. The Login Is From An Untrusted Domain And Cannot Be Used With Windows Authentication. Initially, when my application was much simpler, I had no permissions and roles and my authentication mode was set to "windows". Afterwards, however, I added authorization, changed the authentication mode to "Forms" and ever since, when I try to login, I get the error above.

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Security :: Windows Authentication Bypassing NT Challenge Login; Pass Credentials Manually?

Mar 17, 2011

Is it possible to bypass the NT challenge login, and just have a standard webform login, then authenticating programtically as that user and passing those credentials manually to my connection string so that the database sees me as that user?

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Use Custom Login Page (Not Windows Login Box) For Windows Authentication?

Dec 30, 2010

Is there any way to use a custom Login Page (Not Windows Login Box) for Windows Authentication of SharePoint publishing sites?

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Windows Authentication Of Intranet Website And Reappearing Windows Login Box

Mar 24, 2011

I'm trying to enable automatic Window authentication working on our ASP.NET Intranet. I've changed the Authentication on our IIS 7.5 server from Anonymous to Windows Authentication Enabled only, and changed the Web.config file for the website to:

<authentication mode="Windows" />
<authorization>
<deny users="?" />
</authorization>

The Windows login box appears when accessing the website via IE 8, I enter valid credentials, but the login window keeps reappearing as if it does not accept my credentials. By repeatedly cancelling the login box it disappears, and my login name can be viewed on the website. Is there any possible reason for the login box to keep popping up even though valid credentials are being entered? I've restarted the servers / cleared browser cache etc. Also, ideally I would like the user to enter the login details once in the login box and not be required to reenter login details whenever he reopens the browser.

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MVC :: Login Page In App Hosted On IIS 7 Integrated Mode - Its Never Getting Redirected To The Home Screen Or Invalid Login Screen

May 19, 2010

I have created my first MVC application. I am using forms authenticataion. I have created a custom action filter MyAppAuthorizationFilter which inherits from AuthorizeFilter. Inside this filter I'm authenticating the user credentials by checking them against a database table (by overriding OnAuthorize method). If the user is not authenticated, I am redirecting the users to a login page (which is view of LoginController). I am using this filter agaginst my main controller so that all actions in this filter will execute only if the user is authenticated.

I do not have any problem when I use the asp.net development server (shipped with Visual Studio). But when I deploy the app to our IIS7 server, I can see the login screen when I access the default url, but after entering the credentials (both correct and incorrect) and posting back the Login page, it stays on the Login page (clears the pwd, but not the username). Its never getting redirected to the home screen or invalid login screen.

IIS 7 server has .net framework 3.5SP1, but no MVC. So I deployed the System.Web.Mvc dll in the bin folder.

Here's my Code (I've omitted the views and models as they are not needed here):

[MyAppAuthorizationFilter]
public class MainController : Controller
{
//
// GET: / [code]......

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Security :: What's The Difference Between Basic Authentication And Integrated Windows Authentication In IIS

Jan 4, 2011

What's the difference between Basic Authentication and Integrated Windows Authentication in IIS?

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Security :: Enable Windows Authentication And Disable The Anonymous Authentication In IIS?

Mar 10, 2010

I set authentication mode to Windows in the web.config and I enable Windows Authentication and disable the Anonymous Authentication in IIS 7 on win 7, but HttpContext.Current.User is always null.It works fine when I host the web app in IIS 6.0.

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Security :: Client Certificate Authentication With Splash Screen?

Mar 21, 2011

I'm running into an issue which has me going in circles with the references I've been able to find online. I have an application which is using client certificate authentication (with a removable token). It works well as long as a user doesn't leave their computer. If the token is pulled and any timer events fire on the page causing a postback the application loses its authentication and ends up at an error page.

I've seen some sites which use a mix of (presumably) forms authentication and windows authentication so that the network authentication only has to happen one time and then a token is built which the session relies on for future requests. I had hoped to use something similar to this so that when a new user enters the application they are redirected to a secure page which will request the client certificate (same principal as windows authentication) and then create the token before sending the user back to
their requested page. So far no luck with this.

If I try to setup a subfolder in my website with a different authenication scheme from the root ("windows" vs "forms") I'm given an error in Visual Studio about requiring a separate application in IIS for this to be valid. Working in a development environment this is not practical. Every other technique I've run across which tries to force one page (or folder) to use a windows credential is leaving me with an empty identity object.

Has anyone come up with a way of using a mix of authentication methods to reach the goal I have and still work inside of Visual Studio for development activities?

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Security :: Changing From Forms Authentication To Windows Authentication?

Sep 3, 2010

What do I need to do in order to change an application from Forms Authentication to windows authentication?

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Security :: Setting Up Windows Authentication In Windows 2008 RC2?

Sep 8, 2010

We have a working version of application (Intranet) with uses Windows Authentication deployed in Windows 2003. The application uses HttpContext.Current.User.Identity.Name to get the logged-in user. Here impersonate is turned off.Right now, we are move to Windows 2008 RC2 where this Windows Authentication problem arised. I have Digest Authentication and Windows Authentication enabled. And also I have enabled Anonymous Authentication enabled to avoid the Login dialog of IIS in the end-user IE. Now I am getting HttpContext.Current.User.Identity.Name as Empty. When I impersonate using username and password, I am used to login using that user but all the users uses the same user to login.Does any has solution for this?Deployment Server - Windows 2008 RC2 (IIS 7.5)Development - Windows 7 (IIS 7.5)I am new to IIS 7.5. Please give me a solution

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Security :: UrlAuthorizationModule From Login Page Screen?

Sep 9, 2010

I am new in ASP.NET, i need to learn how i can perform the windows login using custom made login form?
For the example i have page login.aspx where i have textbox control for UserName and Password. and our Intranet client need to put his Username and Password and click Login button. the credential should be check against the windows basse authorization. If correct he will be redirected to the main page according to the roles defined in his windows account.

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Security :: Back to The Login Screen For No Apparant Reason?

Jan 27, 2010

I just implented a login and deployed a system that works great on the local machine. After working on the deployed version for a few minutes, we get dumped back to the login screen for no apparant reason. Happens after just a few minutes, and from random places in the application. The login stuff is pretty much out of the box. This is from config

[Code]....

We are not doing anything at all in the codebehind regarding timeouts, etc.

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Security :: Getting Windows Username Using Windows Authentication?

Sep 3, 2010

I am developing one intranet website. Being an intranet application, one of the requirement is to have a single sign on feature.

It means that the windows PC username (i.e the "ctrl + alt + delete" username) is going to be the username for the system.

How do i fetch that username?

I tried the following two ways which are working in debug mode but not on live site.

System.Security.Principal.IPrincipal user = System.Web.HttpContext.Current.User;
Response.Write(user.Identity.Name);
&
Response.Write(Request.ServerVariables["AUTH_USER"].ToString());

Both the above method works when i run the page from visual studio.

However when i run the page from IIS or any other server, it gives me a blank value

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Security :: Catch A Failed Login Attempt (Windows Auth) And Redirect To A Forms Login Page?

May 26, 2010

I need to create an application with Forms Authentication and/or Windows Authentication. If the application is set to use mixed authentication (Forms + Windows Auth) and the user don't have a Windows user account, the login will fail and he must be redirected to a forms login page. How can I do this?

Are there any different way to provide mixed authentication?

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Receiving Login Prompt Using Integrated Windows Authentication

Mar 23, 2011

I have a .NET 3.5 application running under IIS 7 on Windows 2003 server and cannot get integrated windows authentication working properly as I continue to get prompted for a login. I have set Windows Authentication to enabled in IIS with all other security types
disabled and my application web.config file authentication/authorization is set up as:

<system.web>
<compilation debug="true" strict="false" explicit="true" targetFramework="3.5" />
<authenticationmode="Windows"/>
<authorization>
<deny users = "?" />
</authorization>
</system.web>

With this setup, I'm expecting behind the scene verification of the Windows user to allow access and deny anonymous users. However, what I'm getting is a Windows login pop-up when I try to access the site. I have been troubleshooting this issue for a few days now and cannot figure out the problem. Based on posts with similar problems, I confirmed my URL does not include any periods, double checked that my IE settings are set to Enable Integrated Windows Authentication, and also added my URL to my intranet sites, but still getting the pop-up. To troubleshoot it further, I enabled Anonymous Authentication in IIS and modified my web.config file to which lets me right in and then added Response.Write(System.Security.Principal.WindowsIdentifity.getcurrent().user.name.toString()) to try to see what user is being used in the authentication. The result I'm getting is IIS APPPOOLmyapp which is obviously the IIS application pool for my application.

I'm still using only windows authentication but don't get the pop-up and the windows authentication is performed against the actual Windows user. Just noticed that when the login fails and the Windows login prompt displays again, it is showing the username that attempted to login as "SERVERNAME""USERNAME" which led me to believe it was trying to validate the user against the server vs. the domain. To confirm this, I created a local user account directly on the app server with the same username and password as the network domain user and tried to login again. The result was that I received the login prompt again but when I entered the username and password this time, I was able to successfully login. The network user and app server are on the same domain so really not sure why IIS authentication is pointing to the local app server accounts and not to the domain accounts. I realize this is an IIS question at this point so posting on forums.iis.net as well but anyone may have since have been troubleshooting this for days.

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Integrated Windows Authentication - The User Changes Password And Is Prompted To Login Again - Why

Mar 22, 2010

I am working on an application that uses windows authentication. Within this application, we give the user the ability to change their password. The user can change the password just fine. However, after they change their password, that is when things get weird. Sometimes they can navigate through the application just fine. Other times, they click on a link and are immediately prompted to supply credentials. Occasionly they can click on a link but upon a second click they are prompted to supply credentials. Does the browser keep a token to the original credentials and use this when they request the next page? If this is the case, why can i continue using the site sometimes? Can I change the password and then assign that token to the request?

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Force Showing Login Window With Windows Integrated Authentication?

Feb 16, 2011

I have an silverlight application configured with windows integrated security. I would like to emulate the "Sign in as different user" functionality I would like to give the user, the option to click a button and show the windows authentication login window, so that the user can enter the "User name" and "Password" again using another domain account. (btw i found this question on another site but with no answers, I need the same thing so i copy/pasted a bit)

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