How to leave a port open after a reboot?

Question

linux

you need to open port 8088, I do this:
iptables -A INPUT -i eth0 -p tcp --destination-port 8088 -j ACCEPT
in iptables-save the line appears:
-A INPUT -i eth0 -p tcp -m tcp --dport 8088 -j ACCEPT
after reboot - disappears

Answer 1

How to keep iptables rules after Ubuntu reboot?

Answer 2

Look at the iptables-persistent package.

Answer 3

iptables-save