As I already mentioned today, I have followed this great tutorial to setup my VPS yesterday: Code: https://www.howtoforge.de/anleitung/der-perfekte-server-centos-74-mit-apache-postfix-dovecot-pure-ftpd-bind-und-ispconfig-31/ One of the last steps was to secure ISPConfig with a self-signed certificate. Since ISPConfig is running on example.com and I installed this certificate, my question is what do I have to do to get a LetsEncrypt certificate for my example.com website that I added in ISPConfig under websites. Should I just select SSL and Let's Encrypt SSL in the website options and the certificate will be created automatically or do I have to deactivate this self-signed certificate for ISPConfig and configure everything with certbot? I just want to install the correct certificate that does not display browser warnings. In the past I set up certificates with cerbot and that always worked well and no browser warnings were displayed. Should I follow this tutorial here: Code: https://tomlankhorst.nl/free-ssl-certificates-use-lets-encrypt-with-ispconfig/ I just want the ISPConfig to run safely in the background on port 8080 and in front to have my secured example.com website. Thank you for your time.