Failed to create virtual server : A domain name cannot start with *. To create a wildcard domain, first create it without the * and then go to Server Configuration → Website Options.
I just saw “Website matches all subdomains”! Silly me, that’s maybe the one!
But same options didn’t exist for alias server. (u.itsrinaldo.net is an alias of u.rinaldo.id).
Will setting u.rinaldo.id be enough to include *.u.itsrinaldo.net?
I think this applies specifically to ssl cert requests. I have never had the need to enable this so cannot know if they are linked - if you do enable it check the Lets Encrypt tab that it doesn’t include wildcard certs.
last time I use virtualmin was 2012, using CentOS 5, while I was still at junior high school, learning how to manage my wordpress blog all by myself, using 128MB RAM, 1 core, and literally begging my parents to pay the VPS bill. LOL