Repository for RHEL6/CentOS disappeared

[Peter Schober]

* Stefano Cognigni <stefano.cognigni at gruppometa.it> [2016-11-14 12:34]:
> How can search for other mirror? Into official shibboleth installation page
> there is only "download.opensuse.org"

My understanding is that this is only an indirection that sends you
off to one of the mirrors. That's why the URL you sent worked for me
but didn't for you.
-peter