Adding trusted root certificates (CentOS Linux 7)

If you want add a trusted root certificate manually on CentOS.

Steps:

1. Install the ca-certificates package: yum install ca-certificates
2. Enable the dynamic CA configuration feature: update-ca-trust force-enable
3. Add it as a new file to /etc/pki/ca-trust/source/anchors/: cp foo.crt /etc/pki/ca-trust/source/anchors/
4. Use command: update-ca-trust extract

References:

https://manuals.gfi.com/en/kerio/connect/content/server-configuration/ssl-certificates/adding-trusted-root-certificates-to-the-server-1605.html