If you want to just make netbox universally accessible you do
ALLOWED_HOSTS: "*"
If the netbox pod has to be reachable through a specific domain name (ex. netboxinstance10.mysite.com) then you have to do
ALLOWED_HOSTS: "netboxinstance10.mysite.com"
With multiple values
ALLOWED_HOSTS: "192.168.0.50 netboxinstance10.mysite.com"
This should explain everything you need to know https://netbox.readthedocs.io/en/latest/configuration/mandatory-settings/#allowed_hosts
If you want to just make netbox universally accessible you do
ALLOWED_HOSTS: "*"
If the netbox pod has to be reachable through a specific domain name (ex. netboxinstance10.mysite.com) then you have to do
ALLOWED_HOSTS: "netboxinstance10.mysite.com"
With multiple values
ALLOWED_HOSTS: "192.168.0.50 netboxinstance10.mysite.com"