Newbie question, what is "Shibboleth/SAML2/POST"?

[Peter Schober]

* Griffin Cheng [CLIB] <cscheng at cpce-polyu.edu.hk> [2013-11-13 09:08]:
> I am wondering, I come across the URL ending with
> "Shibboleth/SAML2/POST" after authenticated by the IdP.  What is
> this URL piece and what does it do?  Thank in advance.

It's where the Shibboleth SP receives SAML protocol messages over a
specific protocol binding (HTTP POST in this case). You shouldn't need
to care about that, though, as long as requests to that (and
everything "below" the handlerURL, by default /Shibboleth.sso/ is
passed through to mod_shib).
For more general questions try the documentation.
-peter