Windows services authentication using Kerberos from Java program on linux

Question

Hie everyone, I am struggling with a problem of authentication for a few days now. I work on a web app on tomcat7/java7/linux and I need to access a Windows SSRS server from this app.

When I run the code on my windows machine, everything work just fine, authentication is done by Windows and I just use:

InputStream pdfInStream = new BufferedInputStream(pdfUrl.openStream(), bufferSize);

On the linux server, I use Kerberos through GSS-API javax.security.auth.login.LoginContext and I am able to authenticate against the Kerberos server: LoginContext .login() works just fine.

And now I am stuck here, Windows authentication in Java suggest a deprecated tool, Oracle documentation kept me days without getting to the point, SPNEGO (http://spnego.sourceforge.net/) doesn't seem to address my problem.

Thanks in advance!

Refs: Oracle documentation: docs.oracle.com/javase/7/docs/technotes/guides/security/jgss/tutorials/BasicClientServer.html docs.oracle.com/javase/7/docs/technotes/guides/security/jgss/tutorials/ClientServer.html docs.oracle.com/javase/7/docs/technotes/guides/security/jgss/tutorials/AcnAndAzn.html

HTTP tools from apache: http://hc.apache.org/

Answer 1

Hie everyone!

I solved my problem using a different mean. I authenticated from my client using NTLM (but Kerberos is also possible with this library) even if I run on a linux machine. It is all possible thanks to Apache HTTPComponents library.

If you have the same problem, I recommend you to stop by:

http://hc.apache.org/httpcomponents-client-4.3.x/tutorial/html/authentication.html#ntlm .

See ya!