a virtualizor restart should not clear the iptables rules if we are not using the built-in firewall. ..it does right now!
If virtualizor is updated, then the iptables rules are flushed, and we need to restart them manualy.
automatic updates are secure on the side of the update, but insecure on the side of the firewall.
..possible for the virtualizor developers to improve a little on that side? I opened this as a bug, because i saw few times than our iptables rules were cleared by just leaving the automatic update on.