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echo: rberrypi
to: ALL
from: MARKUS ROBERT KESSLER
date: 2019-03-18 09:47:00
subject: CA-Certificates, issue so

Hi all,

maybe this is of interest for other people here, too. So, just for info:

On one of my Raspbian installations I wanted to create https-based data
access to outside. Unfortunately this did not work for some reason.

When trying to connect to a distant apache server, using curl https://...
then this was terminated with "77, certificate error" like shown in

https://stackoverflow.com/questions/3160909/how-do-i-deal-with-
certificates-using-curl-while-trying-to-access-an-https-url

I have a second machine, nearly identically configured, and there it
worked. I compared the relevant directories, here /etc/ssl/certs, but
left and right side looked the same.

So, I checked, if this was a curl-only problem, but since lynx and w3m
also failed getting the URL, the "root cause" had to be looked for
somewhere else.

Finally I gave it a try and removed ca-certificates package. Only this
single one without dependencies, and reinstalled it.

I watched downloading, installing *AND* setup / configuring.
And -- bingo! -- after that, https worked.

So, during the former installation attempt, obviously ca-certificates
package had been installed and all the files were there, but it seems
that the final step, configuring, failed for some reason.

If someone comes across the same error, be encouraged to have a look
there, also.

Best regards,

Markus

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