1. How to Use my Own Trusted Certificate in WebADM During installation, WebADM generates its own certificate authority certificate and server SSL certificates. Yet, you can use your own SSL certificates instead of the pre-generated ones. Using a trusted certificate may be required when you use the RCDevs OpenID IDP, and to avoid user browser warnings when accessing the WebApps. Just create the SSL certificate and key files in /opt/webadm/pki/custom.crt and /opt/webadm/pki/custom.