Active Directory/LDAP :: Ldap User Authentication Using UserDN And Password?

Aug 13, 2010

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.

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My code is like this:

Dim oEntry as New DirectoryEntry
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public bool IsAuthenticated(string domain, string username, string password)
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if(null == result)
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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

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