repost: remember how to manage root cas in centos

Basically this: How to add Certificate Authority file in CentOS 7

But more importantly: Check if the so installed new CA has made it into the recognized system CAs by doing this:

$ awk -v cmd='openssl x509 -noout -subject' '/BEGIN/{close(cmd)};{print | cmd}' < /etc/ssl/certs/ca-bundle.crt

Reference: How do I list all available SSL CA certificates on CentOS 6