debugging remoteuser / external auth flow

[Cantor, Scott]

> This isn't so much a question about the OIDC stuff but figuring out why
> RemoteUser is failing.

Well, it's telling you there's no REMOTE_USER set, not sure what else there is to debug.

> 2017-05-09 09:51:33,298 - INFO
> [net.shibboleth.idp.authn.impl.RemoteUserAuthServlet:257] -
> 24.182.176.143 - User identity not found in request

> I was wondering if I could get more detailed logging out of
> net.shibboleth.idp.authn, so I tried adding a TRACE level logger, but didn't
> see any additional information..

Not much more to tell.

-- Scott