You are doing just fine. If you need to eventually scale or just add reliability, spend some time learning HAProxy and slap that in front of a couple of nodes.
If you’re concerned about security, spend some time learning SELinux. I’m assuming you’ve already done the reasonable defaults like public key required for ssh, no root login, fail2ban, etc.
If you’re concerned about security, spend some time learning SELinux. I’m assuming you’ve already done the reasonable defaults like public key required for ssh, no root login, fail2ban, etc.