RE: Problem with NSLS2 Debian repository?

["michael.abbott--- via Tech-talk" <tech-talk@aps.anl.gov>]

> Unfortunately we can't check this directly on the travis servers, but I
> think we're running our tests on Xenial (Ubuntu 16.04).
> 
> I can't tell whether there's a problem with the trust relationship with
> InCommon or whether Ubuntu and RHEL7 are simply behind the times; google
> hasn't told me anything relevant yet...

Ok, I have managed to find a bit more.

https://serverfault.com/a/844076 explains that the server admin needs to "fix the Chain File" to eliminate a number of "Extra download" sections documented here: https://www.ssllabs.com/ssltest/analyze.html?d=epics.nsls2.bnl.gov  The Serverfault answer says:

"The certificate is signed with an intermediate CA certificate from one of the well known CA's and the remote server is misconfigured in the regard that it doesn't include that intermediate CA certificate as a CA chain it's response."

Specifically it looks like extra downloads are needed to navigate from "InCommon RSA Server CA" to "USERTrust RSA Certification Authority" (which is in our ca-bundle.crt file).

I guess curl seems to need a bit more help from the server.  Hopefully this will be easy enough for the epics.nsls2.bnl.gov administrators to fix?

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