We want to use a "proxy user" to connect to an LDAP server (Active Directory, Novell, or otherwise) and then make sure that the user trying to log into the application has typed in an acceptable user name and password. I have got the code for connecting to LDAP just fine, but I'm at a loss as to how to check the user name and password. Can you do this through an LDAP query?
Here's the guts of my code so far:
Public Function Authenticate(ByVal UserName As String, ByVal Password As String)
Dim LDAPServer As String = ConfigurationManager.AppSettings("LDAPServer")
Dim proxyUsername As String = ConfigurationManager.AppSettings("LDAPProxyUser")
Dim proxyPassword As String = ConfigurationManager.AppSettings("LDAPProxyPassword")
Dim entry As DirectoryEntry
entry = New DirectoryEntry(LDAPServer, proxyUsername, proxyPassword)
'This performs the LDAP authentication'
Dim obj As Object = entry.NativeObject
Dim search As New DirectorySearcher(entry)
search.Filter = String.Format("(SAMAccountName={0})", UserName)
'How do I check the password now?'
Dim result As SearchResult = search.FindOne()
If result Is Nothing Then Throw New Exception("Unable to find SAMAccountName")
I created one application, and I need to authenticate local user. This user is the user who is login to his/her Personal Computer.. Main thing his that he/she does not in any DOMAIN... I want NON-DOMAIN authentication.
Is it possible to authenticate a user using userDN and password? If so, then tell me the syntax.So far i have tried to authenticate using username and password from my c# code using directoryentry which takes the parameters like domainname,username and password. But i need to authenticate using Userdn and password.
I got exception at line Object obj = entry.NativeObject; and error message is: Invalid dn syntax specified. how can i take a right dn syntax? I tried some domain name such as: LDAP://localhost:389, [URL], ... but I still get this error
We are using membership provider for LDAP authentication. It is working as it should.
But what all configuration settings I have to do so that all the future requests to this application run under the security context of the Logged in user account not through the some default user set in IIS.
We need to have this working because all the permissions on the database are based on the logged in user.
We are using form authentication for LDAP authentication. And having impersonation = true in web.config.
I want to store a X509 certificate to a user store in Novell viathe ".NET C# LDAP Library" that Novell has developed [URL]I can store different entries like givenName, commonName, mail, description etc. etc. Everythings works fine :)But I can't store a certificate correctly because the final encoding of the certificate will be failed.I've tried to send the entire certificate as HEX and Base64 in strings and bytes but the final encoding will still be failed.
[Code]....
So my question is:Anyone who knows how I should encode the certificate before sending it?
We have nearly completed an ASP.NET MVC web application running with SSL in IIS and now find that we must integrate with a third-party product that is supplied as a PHP web app running under lightppd on an alternate port, but still on the same server.
We want to make the integration appear as seamless as possible, so our initial strategy is to do all of the authentication through our application, implement a reverse proxy to expose selected features from the third-party product, and then set-up the third-party product to only be accessible from localhost and (if we can manage it) only from the user our app pool runs as. As a second layer on top of this, we plan on running the third party active content in an IFRAME, so we can surround it with our menus and headers. With the right fonts and colors, hopefully, it won't look grossly out of place.
First question: Is this strategy totally naive? Given the hand we've been dealt, is there a better one?
Second question: What is the best way to implement the reverse proxy? I was thinking of using a routing rule with an Http Handler that invokes our usual authorization just as a controller would and makes the requests to the other site, streaming out the results it receives. Is there something that already does this generically, that I can just hook up and invoke? Maybe some way to specify a controller to handle everything I need to proxy and then use a ViewResult that represents a call to an external URL I construct from the URL I received?
If I can get a few pointers on what to look for, I can trot off to the docs for the details.
I'm trying to get the groups a user is member of from an Open Ldap using vb.net 3.5.
Although so far I have managed to connect to the ldap server and get the user's info like sn, givenname, description, mail, adspath,
I have absolutely no information about the user's groups.
My code is like this:
Dim oEntry as New DirectoryEntry Dim oSearcher as New DirectorySearcher oEntry = New DirectoryEntry("LDAP://myServer/ou=test, dc=example, dc=com", username, pwd, AuthenticationTypes.ServerBind) oSearcher = New DirectorySearcher(oEntry, "(uid=" & uName & ")") oResult = oSearcher.FindOne() if not oResult is Nothing then Dim ADUser as DirectoryEntry ADUSer = oResult.GetDirectoryEntry() end if
Well, ADUser has no info on user membership whatsoever.
Am I doing something wrong? Should I use System.DirectoryServices.Protocols as I saw someone mentioning instead
of System.DirectoryServices or is .Protocols just for Framework 2.0?
The remote server returned an error: (407) Proxy Authentication Required.I get it when I use the GetReponse() method in WebRequest Dim request As WebRequest = WebRequest.Create(getNextURL()) Dim httpResponse As HttpWebResponse = CType(request.GetResponse(), HttpWebResponse)
One of our client uses squid proxy and tries to connect to our asmx web service(which is deployed on our server over internet) via our windows application. But windows application fails to connect to our web service and gives below error.."This method call needs the custom bla bla.. " Soap ExceptionProxy (squid) shows this error:127.0.0.1 - - [10/Aug/2010:14:35:55 +0300] "POST http://abc:83/service.asmx HTTP/1.1" 500 759 "-" "Mozilla/4.0 (compatible; MSIE 6.0; MS Web Services Client Protocol 2.0.50727.4927)" TCP_MISS DIRECTWe have used soap header security and we are also passing soap header credential while calling the service. Application runs well at our end but can anybody guid me, what could be the problem ?
I'm working on a portal, and I need to check users conection on the ldap.
And if users are members of a special group then it works.
I've exactly used this link to make it works : http://msdn.microsoft.com/en-us/library/ff649227.aspx (almost work)
My point is : my ldap path seems good, no error anymore, when I log with my username and password.But when I querry it, it returns null, but I'm sure my user is in the group :
// Bind to the native AdsObject to force authentication. Object obj = entry.NativeObject; DirectorySearcher search = new DirectorySearcher(entry); search.Filter = "(SAMAccountName=" + username + ")"; search.PropertiesToLoad.Add("cn"); SearchResult result = search.FindOne(); if(null == result) { return false; }
I'm a normal user, i test with my account. I'm a member of the group that I'm looking for.
We're using a CMS product called Immediacy, which claims it can handle silent authentication using LDAP / AD but just can't get the thing to work.
point me to a good article or post that lays out the steps to do the above (assuming it's achievable)?
Basically, we need to secure pages on our intranet, and, as our firm is full of 'very important people' who 'don't have time to log in' this is an almost essential requirement.
I plan on using LDAP for authenication on my website and was wondering if this older article was still a good direction to go? [URL] .... I am using Visual Studio 2012 and just didnt know if there was a more "up to date" means.
I am working on Web application which get the authentication details from the Active direcoty using LDAP
when I am using the function DirectorySearcher.FindOne() it gives this error message (The authentication mechanism is unknown), and I relized that I should put this line in the web.config file ( <identity impersonate="false"/> ), then this problem will be solved.
but at the same time I should put true value to the same attribute to get the correct result when I am calling this function
I am looking for a code which does authentication using service account username and password. I mean username and password which has permission to access the active directory and then authenticate the actual username and password provided by end-user. Googled everywhere but could not find any suitable code.
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.
I understand that objects from the System.DirectoryServices namespace can be used. However, I cant seem to path the code to the active directory through the LDAP://domain.com address. There doesnt seem to be any communication going on. I suspect there is some initial configuration necessary or security measures blocking the communication.
I am working with this example from MSDN: http://msdn.microsoft.com/en-us/library/ms180890(v=vs.80).aspx.
I get an error that says the server is not operational.
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?
Since we updated our website to .NET 4.0, users using a proxy-server can't login in our webapplication anymore.In the event-viewer on the server this error is thrown:Forms authentication failed for the request. Reason: The ticket supplied was invalid.This problem only exists for users with a proxy, all other users can login normally.We are not using a web garden or multiserver (load balance) environment, just a webserver and a databaseserver.
I have to check usergroups of LDAP Active Directory for a specific user in C#. Mean I pass this username to a method and it returns me list of group from that user belongs. Im Searching alot But Everytime get new error.
I am trying to create a new user in AD using ASP.net. I have found a lot of information on viewing and logging into user accounts but little explaining how to create a new user.
