Directory Programming .NET

I have installed ADAM.

I have a user Test1 with distinguishedName CN=Test1,O=Microsoft,C=US. and password Test1

In my Asp.net C# code I try to authenticate user

void UserInActiveDirectory()

{

try

DirectoryEntry deDirEntry = new DirectoryEntry("LDAP://localhost:389/o=Microsoft,c=US", "Test1", "Test1", AuthenticationTypes.None);

catch (Exception exp)

string s = "Fail";

DirectoryEntry uses the lazy initialization pattern so the constructor does not actually cause the underlying object to connect to the directory.  You must use a method or property (like NativeObject) that forces the connection to the directory.

I'd suggest looking through the code samples from ch 12 of the book for some ideas on how to do authentication.

Thanks Joe.

I am using authintication from Listing 12.2.

DirectoryEntry root = new DirectoryEntry("LDAP://localhost:389/o=Microsoft,c=US");

It returns true;

But when i authenticate for user Test1 who's userPrincipalName ="Test1" and password = "Test1"

DirectoryEntry root = new DirectoryEntry("LDAP://localhost:389/o=Microsoft,c=US","Test1", "Test1",AuthenticationTypes.SecureSocketsLayer | AuthenticationTypes.FastBind );

It throws exception   ex.ErrorCode = -2147016694 

I tried with AuthenticationTypes.None as well as with distinguishedName = "CN=Test1,O=Microsoft,C=US"

but unsucessfull.

Is anything more required in this case?

First, let's verify that you can actually authenticate this user successfully via LDAP at all.

For this, use ldp.exe from the ADAM program directory (normally c:\windows\adam).  Connect to the server and then do an LDAP "simple" bind using that UPN name and password.  If that works, then we should be able to this to work as well.

The error code you are getting is actually an operations error which is not a error you should be getting from an authentication check.  If you could show the exact code and the stack trace for the error (and not just the code), that would be helpful.

Hi Joe,

My problem is resolved. I appreciate your help.

Actually,  I was using server name with unnecessary information.

DirectoryEntry root = new DirectoryEntry("LDAP://localhost:389/o=Microsoft,c=US","Test1", "Test1",AuthenticationTypes.SecureSocketsLayer | AuthenticationTypes.FastBind );

I do not need "LDAP://localhost:389/o=Microsoft,c=US"

Instead, I need server name "LDAP://localhost:389".

Thanks,

Nischal