Security :: Forms Authentication With Active Directory?
Aug 6, 2010
I am trying to set up an intranet application with Forms Authentication configured for AD. (Don't ask why, it's for the boss). Anyways, I got it configured to where everybody on the domain can log in but I need to restrict it to a security group that IT has set up for me.
The problem I am having is that users in the SG can not log in to the site. I tried just adding
[Code]....
without a role manager but it didn't work. Then I tried adding the role manager below (among others...).
Here is my web.config
[URL]
Also, how should the user defined in connectionUsername and connectionPassword be set up? Must it be the same as the user I am running the application as?
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[Code]....
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Jun 3, 2010
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[Code]....
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[Code]....
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[Code]....
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<authentication mode="Windows"/>
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Sep 19, 2010
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Mar 29, 2011
I have a web application (intranet based) which uses Windows Authentication. Unfortunately there are public computers that have public logins at some company locations. My web app doesn't support these public logins because I need to know the user workingSo, even though these public users are windows authentication users, my app will fail because I have no user account setup for that particular account. I want to then try Active Directory Authentication.In my Default.aspx.cs I'd have something like this
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[code]...
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Jan 27, 2011
I need to create a web page that authenticates users against an existing active directory. The domain is actually a cloud computing configuration where there is a domain controller and multiple other servers on the stack.
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I get an error that says the server is not operational.
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Mar 2, 2010
I am not really sure if this post should go in the Security section or the Active Directory / LDAP section....with that being said I am looking for advice on how to best accomplish my goal(s), I am working with FORMS authentication, using active directory (across 2 domains). I have got authenticating working correctly based upon the article at: [URL] now - my questions:
1. What is the best way to deal with roles? What I would like to do is restrict access to my application so that only the users that are authorized to use the application can login - not everyone in the AD. My gut feeling tells me I would use an AD group for this. Furthermore, a subset of these users in this group will be allowed to access the data maintenance forms
2. Ideally, in a perfect world, I would like to write this authentication piece as a separate project - this way it could be used for multiple projects - the only thing different would be the AD groups it would be checking. Is there a way that I could set which AD groups or roles in each projects web.config?
Am I approaching this the correct way? What is typically done?
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May 5, 2010
I am using System.directory services namespace in framework 2 to query active directory. I have used fixed user account impersonisation in the web.config file, find the code:
<identity impersonate="true" userName="enterprise ang09" password="Telcome123"/>
<authentication mode="Windows"/>
I have disabled anonymous access in IIS. Also i have given Read & write access to the account tang09 for the website virtual directory and Microsoft.NET folder located in windows folder. But still i get prompted for the domain username and password to access the website.
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Nov 23, 2010
I have my config setup like below:
<configuration>
<connectionStrings>
<add name="ADConnectionString" connectionString="LDAP://myldap/CN=Users,DC=nevco,DC=local"/>
</connectionStrings>
<system.web>
<authentication mode="Forms">
<forms name=".ADAuthCookie" timeout="10" loginUrl="Login.aspx" defaultUrl="Default.aspx" />
</authentication>
<membership defaultProvider="DomainLoginMembershipProvider">
<providers>
<clear/>
<add name="DomainLoginMembershipProvider"
type="System.Web.Security.ActiveDirectoryMembershipProvider, System.Web, Version=2.0.0.0,Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a"
connectionStringName="ADConnectionString" attributeMapUsername="sAMAccountName" />
</providers>
</membership>
</system.web>
</configuration>
I can attempt to log on but every time it says I am using the incorrect username/password. Does it look like I am doing anything wrong above? Is there any way for me to find more information on why it's not finding my username/pass?
UPDATE:
Do I need to provide a Username and Password in my membership/providers section?
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Sep 19, 2014
In the past I've developed web apps using Windows authentication however I'm now tasked with building a web app which needs to directly authenticate with Active Directory however I'm unsure about the security of doing this and have several questions.
As it stands I'm simply authenticating users by padding the username and password entered into a method which performs a search on active directory for the user's sAmAccountName, this is done within a try catch block. If the search can't run and throws an exception then the user isn't authenticated and if a result is found then the user is authenticated.
My first question is , how secure is doing this?
Secondly I need a way of storing possibly a session variable to ensure the user, once logged in, can access all the pages they have access to.
I was thinking of pulling the user's GUID out of AD and using that as the session variable.
Lastly I need to prevent people from trying to brute force my web application and to do that I've simply create a new session variable and once the count reaches 3 , they will not be able to make anymore attempts until the session variable has expired or they clear their cookies.
I think this is a more method of preventing numerous consecutive login attempts and wonder whether there's a better way? I'm considering using a captcha.
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Feb 8, 2010
LDAP - directory entry issue with out user and password using impersonate and windows authentication
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