Hi, I just tested my first Let's Encrypt domain on Ubuntu 12.04.5 LTS and went those steps: 1.) Updated Linux with latest patches 2.) Updated ISPCOnfig first to 3.1.1 and then to 3.1.1p1, selecting both times to REFRESH configuration of modules 3.) As root user downloaded Let's Encrypt installer script, changed to executable and run: Code: cd /tmp wget https://dl.eff.org/certbot-auto chmod a+x certbot-auto $ ./certbot-auto 4.) Script then did some fancy stuff and finally asked me which domains I would like to HTTPS protect with Let's Encrypt. I selected 1 domain (actually, I had to deselect all others...annyoing, as I have 1000+ domains) 5.) finished script with success Domain works as it should under nice, green HTTPS url. Sweet. BUT hey, I went to ISPConfig CP and cannot find that domain under Sites anymore. Gone. So if going via certbot-auto script, SSL works, but domain vanishes from CP. On the other hand, if I enable Let's Encrypt SSL via ISPConfig, nothing happens. Does not work. Any idea what to check?