title: SASL vs. gssapi
body: <p>I am doing a project which involves authentication and I can't quite grasp the difference between SASL and gssapi.  Is gssapi used under the covers of SASL?  Can I use gssapi without SASL?  What is the correct thing to do?</p>
  
  <p>If I use libsasl, do I need to link with libgssapi_*?</p>
  
  <p>Thanks.</p>