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Windwos Integrated Authentication using AD and Tomcat (no prompt to the users)

Derlei Luff
Greenhorn

Joined: Sep 12, 2009
Posts: 1
Hi all,

I’m new to Tomcat and normally work in a Microsoft Windows world. I’ve stumbled into a problem using Tomcat as a web server, that I’m sure there is a simple solution for though I can’t find it. I’m sure it works if I use a MS IIS server instead of a Tomcat server at least. I hope some of you more experienced users of Tomcat can either point me in the right direction or perhaps come up with the conclusion J
My problem is:
I have a running Active Directory which holds the users and groups. I have a Windows XP client, which is member of the Active Directory domain. If a users logs into the client using he’s username and password and then open Internet Explore I would like him to gain access to a web page hosted on the Tomcat server. The problem is that the Tomcat server shall validate the user’s Active Directory credentials and the credentials should be sent to Tomcat without user interaction. In other words I want “Windows Integrated Authentication” from the MS world, so that Internet Explore takes the users credentials and send them to the Tomcat server (Kerberos). So far I can only get this to work if Internet Explorer prompts the users for he’s credentials (Basic Authentication).
In other words I want to archive this:
· Users logs onto the Windows XP computer using he’s username and password
· User opens Internet explorer and write the URL to the page hosted on the Tomcat server
· Internet Explore sends the users username and password automatically to tomcat (Kerberos)
· The Tomcat validates the user’s credentials and accepts the request.

This is some form of Single Sign On and I know it works if I use IIS instead of Tomcat.
I’ve found several guides on the net, but no one which tells me if this is possible or not. Hope some of you of you can point me in the right direction, but perhaps I have to use a third part application to archive this??

Thanks in advance,
Derlei
Paul Sturrock
Bartender

Joined: Apr 14, 2004
Posts: 10336

Yes Tomcat (or more correctly jCIFS) can support NTLM, which is the protocol Microsoft uses to do their Windows Integrated authentication thing. Have a read of that link.


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Tim Holloway
Saloon Keeper

Joined: Jun 25, 2001
Posts: 15641
    
  15

Actually, I'm not sure if jCIFS is going to help here. It's designed to permit java apps to be able to access Microsoft Windows Networking. There's also an Apache project whose name I forget that uses it as a plugin to provide a more or less "universal" file access mechanism (not just CIFS, but NFS, HTTP, FTP, M.O.U.S.E., and so forth),

Check this out: http://www.coderanch.com/t/87625/Tomcat/apache-tomcat-mod-auth-kerb#469714

There is at least one Tomcat security realm that supports SSO via Windows authentication, though I'm not up to date on the exact options.

CAUTION: Windows authentication is really only effective on your LAN. On the open Internet, it's not effective, both because of security concerns and because not all of us happen to be running Windows.

The Windows authentication realms don't have your userID and password, however. What they have is the Kerberos ticket that the Windows domain manager granted when you logged into the Windows network. Which is preferable, since you don't really want the keys to your Windows life bouncing around in memory/disk all the time.


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Pat Gonzalez
Greenhorn

Joined: Oct 18, 2009
Posts: 19

This project has an example for Tomcat...

http://spnego.sourceforge.net/spnego_tomcat.html

 
I agree. Here's the link: http://aspose.com/file-tools
 
subject: Windwos Integrated Authentication using AD and Tomcat (no prompt to the users)
 
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