How to configure iptables on Linux Mint 17.1?

How to configure iptables and make the configuration persistent across system restarting on Linux Mint 17.1?

You can use the ‘iptables-persistent’ tool.

To install iptables-persistency pachage:

sudo aptitude install iptables-persistent

The you can manipulate the iptables by the ‘iptables’ command.

To save the current iptables rules:

sudo /etc/init.d/iptables-persistent store

It will store the rules for ipv4 and ipv6 in

/etc/iptables/rules.v4
/etc/iptables/rules.v6

respectively.

It will load the rules from these files during booting the system.