Congratulations on creating a state-of-the-art vpn server and making it available for free. It's much appreciated.
It's working great except that letsencrypt is not working on my server despite many tries. However, I do have a valid ssl cert from RapidSSL for the FQDN of my server, including the .cert file, private key and the ca.cert.
Do you have step-by-step instructions on where to upload these 3 files (/etc/ssl/certs?) and what (and where) to modify printutil config so that https://servername does not give users errors from the self-signed cert?
Your brief instructions say it can be done under settings but I can assure you there is NO setting available to change the self-signed cert.