In Asp.net Application for windows authentication
In aspx page
asp:Label runat="server" ID="windows"
aspx.cs page
windows.Text = User.Identity.Name;
webconfig:
authentication mode="Windows"
but authentication is not performed what problem ??
Add the following in your web.config under system.web to make sure that the windows authorization is triggered:
<authorization>
<allow users="?" />
</authorization>
Your web.config wants to contain like this:
<configuration>
<system.web>
<authentication mode="Windows" />
<anonymousIdentification enabled="false" />
<authorization>
<deny users="?" />
</authorization>
</system.web>
</configuration>
This will force all users to use their windows/Active Directory login. A 401 Access Denied error will be given to those who don't log in.
Because Integrated Windows Authentication uses the current Windows
user information on the client computer for the authentication, it
does not immediately prompt the user for a user name and password.
However, if the authentication exchange cannot identify the user, a
dialog box appears that prompts the user for a Windows user account
user name and password
Source: How to implement Windows authentication and authorization in ASP.NET
Try adding the following block to see if it's working
<authorization>
<deny users="*" />
</authorization>
After adding this, run the application and you should get HTTP 401 - Access is denied error.
You can customize authorization from then on.
UPDATE:
Here's a different approach and how to configure it via IIS management console:
Deploy your site to IIS
Click on your site and select Authentication
Disable Anonymous Authentication and enable Windows Authentication as shown in the image below
Go back to features and select .NET Authorization Rules. Here you can add allow/deny rules on a role or user basis.
To test your current code deny anonymous users and allow all. When you connect to your application you should be able to use the Windows user you used to log in.
Related
I'm developing a ASP.NET MVC webapplication currently running on IIS Express (for development).
The webapplication has two pages
Computer
Department
General authentication settings in web.config
<system.web>
<authentication mode="Windows" />
<authorization>
<allow users="*" />
</authorization>
</roleManager>
</system.web>
The DeparmentController enforces authentication using the authorize attribute:
[Authorize(Roles = #"DOMAIN\Administrators")]
When visiting the computer page unauthorized, all content loads fine.
When visiting the department page, I'm prompted to enter my credentials. The authentication works as expected, but I get '500 Internal Server Error' on css, js and ico files.
During my research, I only found the exact same problem the other way around. Where the static files where not loaded for unauthorized users.
Did you implement windows authorization within iis as well, also does your user have permission to the directories that the page is displaying?
I've been searching for a solution for this headache for a quite long.
I have a website that I want to deploy to my web server, so I'm using IIS 7 and followed these steps to authenticate logging into it:
1- Open IIS
2- Add Website (with random port number)
3- Set the application pool for it to a specific Identity
4- Disable Anonymous authentication then enable Windows Authentication.
5- Remove "Allow All users" rule
6- Add allow rule for an admin user and give him full control access
When I try to access it it asks for a username and password which must be the same user as the one added in step 6 .
The problem is whenever I click ok the logging window keeps popping up and can't access the website as a result
I also tried to add deny rule for anonymous users
Is there anything must be added to web.config file or something ? Do I need to install something or disable something ?
Any suggestion is very appreciated
EDIT
This is my web.config file authorization section
<system.web>
<authentication mode="Windows" />
<compilation targetFramework="4.5" />
<httpRuntime targetFramework="4.5" />
<pages validateRequest="false"></pages>
<identity impersonate="false" />
<authorization>
<allow users="SomeUser" />
<deny users="*"/>
</authorization>
</system.web>
After spending hours trying to solve this finally I figured out the solution
1- Open IIS
2- Add Website (with random port number)
3- Set the application pool for it to a specific Identity
4- Disable Anonymous authentication then enable Windows Authentication.
5- Remove "Allow All users" rule
6- Add allow rule for an admin user and give him full control access
Note: all previous steps were made using IIS wizard
7- After openinig web.config file I can't find any changes after adding allow rules so, I had to do it manually by adding <authorization> tag then adding these rules in the same order (this order is very important either it won't work)
<authorization>
<allow users="<the user that you want to give an access>" />
<deny users="*" /> <!--to deny all other users-->
</authorization>
From MSDN, you need to enable windows authentication both in IIS and ASP.NET application:
Start Internet Information Services (IIS).
Right-click your application's virtual directory, and then click Properties.
Click the Directory Security tab. Under Anonymous access and authentication
control, click Edit.
Make sure the Anonymous access check box is not selected and that Integrated Windows authentication is the only selected check box.
In your application's Web.config file or in the
machine-level Web.config file, ensure that the authentication mode is
set to Windows as shown here.
...
<system.web>
...
<authentication mode="Windows"/>
...
</system.web>
Enabling windows authentication on IIS so that IIS authenticates the user.
Adding a setting to your web.config so that ASP.NET knows what authentication provider to use. In this case, ASP.NET uses windows authentication provider to set the value of the current User property to a WindowsIdentity based on the credentials supplied by IIS.
Also check for authorization:
The rules are checked from top to bottom and stopped at first matching rule. Therefore, you should specify allow before deny. Example:
<authorization>
<allow users="John"/>
<deny users="*"/>
</authorization>
I have developed an application to allow windows authentication and hosted it to the live server. in my local pc i am able to get the username password. but when i am accessing from web (e.g. websso.mydomain.com) it keeps asking credentials even after i entered correct credentials.
<authentication mode="Windows">
</authentication>
<authorization>
<deny users="?" />
</authorization>
<identity impersonate="true"/>
i have added above tags in web.config, hosting server is windows server 2008 R2. I have tried to get username from
WindowsIdentity.GetCurrent().Name
Environment.Username
Request.ServerVariables["LOGON_USER"]
Request.ServerVariables["AUTH_USER"]
HttpContext.Current.Request.LogonUserIdentity.Name
Is there any changes which needs to do in IIS or any steps to follow to configure windows authentication.
Installed IIS version is 7.5
I had a similar issue recently, try ensuring that the windows user has read access to the directory on the server.
Checkk application pool owner in IIS
It should be network services
websso.mydomain.com looks like internet domain name, not intranet domain name because it has sections. According to https://support.microsoft.com/en-us/help/258063/internet-explorer-may-prompt-you-for-a-password you should use domain name without sections (e.g. http://websso/) or add your domain name to security settings of client browsers
Try updating your <authorization> to include an <allow> element as I have done here.
E.g.
<system.web>
<authentication mode="Windows" />
<authorization>
<allow users="yourdomain\someotheruser" />
<deny users="?" />
</authorization>
I did an LDAP Login for my Project and it did worked with Login (Entering Password etc.) But now im having a Problem! It logs me automatic in (I deleted my Cookies already) Without even using my Code for the LDAP (It takes my domain Account as the username and grants me the right, that only users should have.) I looked in the Global ASAX and deleted the Code there. I did look in my web.config, here is the code:
<authentication mode="Forms">
<forms cookieless="UseCookies" defaultUrl="Home.aspx" loginUrl="Login.aspx" name="adAuthCookie" path="/" protection="None" timeout="10">
</forms>
</authentication>
<authorization>
<allow users="*" />
<deny users="?" />
</authorization>
<identity impersonate="true" />
So can you tell at which places i can look further, where is the Login from the forms (If i dont us the code above, the Login doesnt show, but still logs me in!)
Please help me, i have no Idea anymore.
Edit: I did looked my whole Code, theres no sign in, log, LDAP, or Forms, but its still takes me as a User!
Maybe you enabled Windows authentication on your Web site? Check in IIS manager:
Open the IIS Management Console on the web server
Expand the Sites folder
Click on the site concerned by your project
Double-Click the IIS - Authentication option
Under Authentication, check the state of Anonymous Authentication and Windows Authentication
Environment: ASP.NET 3.5, C#, Forms Authentication, IIS 6
Problem details: I have a web.config file set up with forms authentication and the following are the location element, as appearing:
<location path="Home/Common">
<system.web>
<authorization>
<allow users="*" />
</authorization>
</system.web>
</location>
<location path="Business/Services">
<system.web>
<authorization>
<allow users="*" />
</authorization>
</system.web>
</location>
The Home/Common folder contains my ForgotPassword.aspx.
The Login.aspx page is set as the LoginUrl
When the Login page is visited the first time (with no prior cookies etc.) the ForgotPassword link functions fine. It redirects to the page as desired.
However, once a user has logged in, upon Sign Out, the ForgotPassword link doesnot redirect. Rather, forms authentication precedes and redirects to the login url with the ReturnURL querystring pointing to Forgot Password page.
The question simply is: If prior to signing in the element is considered and rightly excluded from forms authentication, why post Signing in and Sign out it gets in the purview of Forms authentication.
It is to be noted that on clearing Browser history, the functionality works as expected.
Any help would be appreciated.
Thanks.
It is more common to use the question mark (?) to allow/deny unauthenticated users. Unauthenticated users are the ones that really need to use the login page and password reset functionality, so allowing all users (*) to access them is an incorrect configuration. However, you have not posted your entire Web.config. There will be a root configuration for authorization that deals with "everything else."
How I would likely configure this is within the root <system.web>, I'd have:
<authorization>
<allow users="*" />
</authorization>
And later in the Web.config, define locations that are secured:
<location path="Business/Services">
<deny users="?" />
</location>
Which denies all unauthenticated users to pages within that folder. Your login and forgot password pages would be in the root folder. Regardless, either I'm missing something or you do not have the root authentication configured which might be confusing ASP.NET's authentication.