How to set up HTTPS protocol on a domain from OpenNIC (eg: .geek or .libre)?

Question

Digital certificates

subject

Doku read - did not understand anything :)

In the course it turns out that the best solution is to simply make a self-signed certificate and that's it?

Or are there options?

That is, I just want HTTPS to work properly for my sites on these domains, even if the user has to add it to the exceptions. And if possible and without exception - well, generally luxurious))

Thank you in advance.

PS On VPS host - Ubuntu 20.04

Answer 1

Well, you need to issue a certificate for it and point the web server to it
. You can buy a certificate, you can issue a free one from LetsNcrypt