I’ve been trying to access this particular REST service from a PHP page I’ve created on our server. I narrowed the problem down to these two lines. So my PHP page looks li
Another thing to try is to re-install ca-certificates
as detailed here.
# yum reinstall ca-certificates
...
# update-ca-trust force-enable
# update-ca-trust extract
And another thing to try is to explicitly allow the one site's certificate in question as described here (especially if the one site is your own server and you already have the .pem in reach).
# cp /your/site.pem /etc/pki/ca-trust/source/anchors/
# update-ca-trust extract
I was running into this exact SO error after upgrading to PHP 5.6 on CentOS 6 trying to access the server itself which has a cheapsslsecurity certificate which maybe it needed to be updated, but instead I installed a letsencrypt certificate and with these two steps above it did the trick. I don't know why the second step was necessary.
Useful Commands
View openssl version:
# openssl version
OpenSSL 1.0.1e-fips 11 Feb 2013
View PHP cli ssl current settings:
# php -i | grep ssl
openssl
Openssl default config => /etc/pki/tls/openssl.cnf
openssl.cafile => no value => no value
openssl.capath => no value => no value