Why are iptables settings reset after service restart?

Question

System administration

Why are iptables settings reset after service restart?

Answer 1

There is also iptables-persistent

Answer 2

Because that's how he works. To save, there is iptables-save/iptables-restore

Answer 3

because there is a setting in /etc/sysconfig/iptables-config to enable rules to be saved across reboots.