terça-feira, setembro 06, 2016

linux - debian 8 iptables-persistent

linux - debian 8 iptables-persistent - Stack Overflow

debian 8 iptables-persistent

debian 8.5 iptables

Persist IP Tables Debian/Ubuntu

To persist any changes you make to your iptables rules, do the following.

Install iptables-persistent:

sudo apt-get install -y iptables-persistent

Make any changes you want to your iptables rules, eg

sudo iptables -t nat -A PREROUTING -p tcp --dport 80 -j REDIRECT --to-ports 8080

Then run

sudo dpkg-reconfigure -y iptables-persistent

The rules should persist after a reboot now.

Extra Info

The dpkg-reconfigure just causes iptables-persistent to do again what it does at install, which is to save the current iptables into a file using a command just like:

iptables-save >/etc/iptables/rules.v4

ip6tables-save >/etc/iptables/rules.v6

The iptables-persistent package causes the os to run something like the following on reboot.

iptables-restore < /etc/iptables/rules.v4

ip6tables-restore < /etc/iptables/rules.v6

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