On 13/5/23 18:56, Tom Reed wrote:
> for iptables-save, after system rebooting, does it know where to locate
> the file?
Yes. That's all taken care of by the iptables-persistent package
Also I made a typo. correction;
sudo nano /etc/iptables/rules.v4
sudo nano /etc/iptables/rules.v6
--
Jeremy