Oracle Linux 7.0 and later include a shared store for certificate authorities.
You can find out more information about this shared store by reading the
following manual page on a Oracle Linux 7.x system:

 $ man update-ca-trust

In previous versions of Oracle Linux modifying the distributed certificate bundles
(such as /etc/pki/tls/certs/ca-bundle.trust.crt) was defacto the way of adding
an additional trusted certificate authority to the system.

These additional trusted certificate authorities must be ported forward to
the Oracle Linux 7.0 system manually. Place them as certificate (PEM or DER)
files to the /etc/pki/ca-trust/source/anchors/ directory and then run the command:

 # update-ca-trust

Read the update-ca-trust manual page for more information.

