I want to learn how to make Odoo one database with one Subdomain

Job ID: 35634990

Budget: $10 – $30 USD

I've already setup my testing VPS server. And I want to learn about how to setup in this way:
1. company1.example.com --> Database A
2. company2.example.com --> Database B

Things to do in this project:
1. I'll backup my server
2. You will remote access to my Macbook and do the configurations while I observe:
i. Configure the nginx (/etc/nginx/sites-available)
ii. Check the odoo.conf and odoo2.conf which I tried but fail.
iii. Check the odoo.service and odoo2.service which I tried but fail.

3. Brief me what was wrong.

My current setup and versions:
1. VPS hosted on Linode
2. Server: Ubuntu version 20
3. Odoo : Community Edition version 15
4. Domain name: will be informed later

Budget: Let's assume this is a one hour job. Please help me to reduce the cost as I'm learning it on personal expense. Appreciate your helps, thanks.
Related categories: System Admin Linux Ubuntu Odoo