Thank you. Results for echo | openssl s_client -CApath /etc/ssl/certs/ -connect static.licdn.com:443 | grep 'Verify return code':
www.linkedin.com:443 OK static.licdn.com:443: Verify return code: 20 (unable to get local issuer certificate)! That's parallel to what asyncio also says. Interestingly Firefox (Iceweasel) does not complain when opening https://static.licdn.com with its usual "This Connection is Untrusted" page. Is it a A MITM setup which is detected by openssl/asyncio but not Firefox? Some other sites: mail.google.com:443 OK for now. But was NOK for a while. www.reddit.com:443 NOK. Firefox complains too. Though it says Cert is valid for *.akamaihd.net , *.akamaihd-staging.net , a248.e.akamai.net. Optimistic possibility may be a misconfigured CDN network + wave of certificate renewals.. Imran
