Debian: Save current active iptables rules

Hello,

some basic commands to handle a ruleset of iptables.

To dump all active iptables rules to the console rules use


root@debdev:~ # iptables-save


If you want to load these rules on demand, save all rules in file of your home

root@debdev:~ # iptables-save > ~/firewall.rules

To reload all rules on demand use the following command

root@debdev:~ # iptables-restore < ~/firewall.rules

If your rules should survive a system restart, install the package iptables-persistent and write the output of the save command to a file /etc/iptables/rules.v4

root@debdev:~ # apt-get install iptables-persistent
root@debdev:~ # iptables-save > /etc/iptables/rules.v4

Michael

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