Conference firewall

Setup a firewall on a linux system that blocks all incoming requests, except those as a response on connections initiated by you.

This script uses the linux kernel netfilter firewall and configures it with iptables.

Setup

Copy, unzip or clone the repo into a folder and go to that folder :

git clone https://github.com/ruleant/firewall.git
cd firewall

$ sudo ./firewall-load

$ sudo ./firewall-reset

To make the firewall rules persistent after a reboot, install the iptables-persitent package (Ubuntu\Debian) :

$ sudo apt-get install iptables-persistent

This will save the current firewall rules and load them again after a restart.

Saving the firewall rules again after you changed them :

$ sudo netfilter-persistent save

More info on how to use netfilter-persitent can be found on the manpage.

I get a 'iptables-restore: not found' error

Run this script as a priviliged user (root, or use sudo), or check if the iptables package is installed on your system.

Comments, suggestions and improvements are welcome in the issue tracker on Github : https://github.com/ruleant/firewall

MIT (see LICENSE file)