title: Setup FreeRadius + ldap + single sign-on
body: <p>Am trying to configure Single sign-on using FreeRadius.</p>
  
  <p>Scenario:
  I have a fully configured LDAP (389 DS) Version-2.1 with few users and groups (in CentOS6).
  I have installed FreeRadius (latest stable version) (in CentOS 6).
  Configured FreeRadius to listen the above LDAP server.</p>
  
  <p>I have made a client system (CentOS6) as radius client using pam_radius module. Now, am able to login to NAS with the LDAP credentials and getting logs correctly in FreeRadius.</p>
  
  <p>Now, I want to implement single sign-on in this setup since I want to added some other devices like Firewall(Sonicwall) to authenticate.</p>
  
  <p>I couldn't find any good docs to configure this.</p>
  
  <p>Can someone please suggest me how to configure Single sign-on in the above setup?</p>