Hi r/selfhosted. I am working on setting up my selfhosted setup. I have 8 machines, old Dell Optiplex 7040 SFF, set up with Proxmox. They seem to work properly internally, but I want to expose some services externally (Seafile). I own a domain, but for this I'll just use mydomain.com. I'm having trouble understanding how I should set up my DNS records for this.

How I want my network function:

• internal.mydomain.com -> points to my NGINX proxy manager instance
  • I have this done with port forwarding and an A record to my external IP
• seafile.internal.mydomain.com -> proxies my seafile instance
  • I have a record in NGINX proxy manager to point seafile.internal.mydomain.com to 192.168.1.30:80

When I hit internal.mydomain.com, I see the NGINX proxy manager success page, but when I hit seafile.internal.mydomain.com, I get a 404 back. Can anyone help my to understand how I should set this up properly?