Hostname (FQDN) as a Hosted Website in a VM?

[BNexus]

So I have one domain - which I was going to use a vm in Proxmox to host. Due to the fact that it's being hosted in Proxmox, should I avoid using that as a hostname for the Proxmox server itself?

For example:

Proxmox Dedicated Server: Hostname = secure.example.com
Proxmox VM "100" - hosts example.com, using secure.example.com as hostname as well.

I just wanted to confirm this is a bad idea, as from what I can tell it can cause some major issues.

 

[Monkey Bizness]

Hi,
Are you forwarding ports 80 and 443 directly to your vm inside your private network?
Ideally, you would go with a reverse proxy in a DMZ. This reverse proxy handles TLS termination and is isolated from the rest of your network.
Even if you can provide a DMZ, it's still a good idea. You won't be able to forward port 80 and 443 to another vm.

On the original question, it is always a bad idea to set a public hostname as a local system hostname.
set a local hostname to your proxmox and vm. Your public dns secure.example.com will point to your public IP. The nginx/apache/otherwebserver will handle the use of you public hostname.

Also a public hostnam should NEVER point to a private ip.