How this work with Apache or Nginx?

[jazzi]

Hi, my VPS has apache running and I created a directory /src/www/crm for it and updated the DNS, ping the new domain works.

I followed the Ubuntu installation guide and everything seems fine, see the result of rails server below:

rails server
=> Booting Puma
=> Rails 6.1.5 application starting in development 
=> Run `bin/rails server --help` for more startup options
[21173] Puma starting in cluster mode...
[21173] * Puma version: 5.6.4 (ruby 3.0.0-p0) ("Birdie's Version")
[21173] *  Min threads: 5
[21173] *  Max threads: 5
[21173] *  Environment: development
[21173] *   Master PID: 21173
[21173] *      Workers: 2
[21173] *     Restarts: (✔) hot (✔) phased
[21173] * Listening on http://127.0.0.1:3000
[21173] * Listening on http://[::1]:3000
[21173] Use Ctrl-C to stop
[21173] - Worker 0 (PID: 21178) booted in 0.0s, phase: 0
[21173] - Worker 1 (PID: 21181) booted in 0.0s, phase: 0

Then I opened http://newdomain:3000 and nothing happened, error showed ** can not open this page**.

So I stopped Apache, try above again but got the same result.

I am quite new to rails or ruby, and this looks very different to Wordpress, don't know what to do next, I will appreciate for any help.

Thanks.