Customizing Plesk admin URL

Hi,

I have a Plesk Web Admin edition (Obsidian 18.0.20 Update #2) running on Ubuntu, hosted on an AWS EC2 instance.

I tried to modify the Plesk admin url from the random amazonaws.com hostname to plesk.mydomain.com using the following SSH command:
plesk bin admin --enable-access-domain plesk.mydomain.com

After adding the subdomain plesk.mydomain.com through the Plesk console, I'm able to access the Plesk console through the new URL. However, even after creating a new SSL certificate for...

Customizing Plesk admin URL