I have a Ubuntu 20.04.3 LTS virtual machine running nginx/1.18.0 on DigitalOcean.
Currently, when I key in the URL
https://www.main-domain.com, it works. However, when I key in the URL
https://main-domain.com, I get the following error;
This site can’t be reached. main-domain.com’s server IP address could not be found.
I am not sure whether this is a DNS or nginx problem.
How can I configure the digitalocean Ubuntu VM such that the URL
https://main-domain.com without the www in front works?