Hello, me again. I'm setting up ISPC on a Oracle VM VirtualBox running ubuntu 20.04. I did the Perfect Server Tutorial for that, but ran into some issues. I kinda solved these by: I set the local IP 10.0.2.15 in "Server IP Adresses" in ISPC (127.0.0.1 wasn't the correct choice). I set "10.0.2.15 v1.cms" in /hosts, as well as for the hostname "dev.domain.cms". Websites work now, but I'd like to have them SSL'd, just to have a proper environment. All of this isn't supposed to phone outwards, I just want to play with it on this VM. Any advise/spoonfeeding? Edit: SOLUTION: As ahrasis said, log into ISPConfig > Website > Edit > check [v] SSL > switch to "SSL" tab > Add your basic data > on the bottom of the form, choose "create Certificate" > Switch to "Redirect" tab > Check [v] "Rewrite HTTP to HTTPS" > Save.