Single Sign On For TeamCity running on Linux OS

Hello,

Our TC 7.1.3 server runs on Linux OS.
From what I read in the documentation, SSO is supported only for servers installed on Windows boxes.
http://confluence.jetbrains.com/display/TCD7/NTLM+HTTP+Authentication

What can I do so as to enable SSO for our linux box?
I am actually looking on a way to integrate kerberos/AD environment with TC.

Thank you
Nantia