Under OpenVPN server, Advanced settings, there is a Firewall parameter. Normally this is "Auto" - however anyone know how "External" and "Custom" works?
My idea is to get a port knocking set up with IPTABLES, like this one:
https://www.digitalocean.com/commun...knocking-using-only-iptables-on-an-ubuntu-vps
Best, of course, would be if this would be included as an option within the firmware. However I fully understand and respects RMerlins choice of not extending any more functionality into the firmware. So that is why I wonder what "External" and "Custom" is for?
My idea is to get a port knocking set up with IPTABLES, like this one:
https://www.digitalocean.com/commun...knocking-using-only-iptables-on-an-ubuntu-vps
Best, of course, would be if this would be included as an option within the firmware. However I fully understand and respects RMerlins choice of not extending any more functionality into the firmware. So that is why I wonder what "External" and "Custom" is for?