Firewall installation scripts

You'll find here a set of firewall scripts that you can run.

These scripts are the results of a long time of trial / errors + work. Thanks to all the one that helped me to make them!

Scripts

To use the firewall you need to:

• Have a firewall start script
• Have a firewall stop script
• Have a firewall launcher script
• Register the firewall to the boot sequence

Firewall start script

My firewall start script: http://www.daxiongmao.eu/wiki_upload_files/firewall/firewall-start.sh

NetBoot client Firewall start script

My NetBoot firewall start script (LAN only): http://www.daxiongmao.eu/wiki_upload_files/firewall/firewall-nfs-client.sh

Firewall stop script

My firewall stop script: http://www.daxiongmao.eu/wiki_upload_files/firewall/firewall-stop.sh

Firewall launcher script

My firewall stop script: http://www.daxiongmao.eu/wiki_upload_files/firewall/firewall.sh

Installation

• Download and adjust all the previous scripts.

• Put all the scripts in /etc/firewall/ and set the execution rights

mkdir /etc/firewall
cp firewall* /etc/firewall/
chmod -R 755 /etc/firewall

• Create some symlink for the firewall

ln -s /etc/firewall/firewall.sh /usr/bin/firewall
ln -s /etc/firewall/firewall.sh /etc/init.d/firewall

• Register firewall script to boot sequence

cd /etc/init.d
update-rc.d firewall defaults

Reboot and check that the firewall is up with:

firewall status

Note

All this knowledge is the result of years of experiments and trials. Don't hesitate to search over Internet for more advanced || simpler rules.

References

• My education at Telecom Bretagne [1] && Chalmers [2]

• How to set IPv4 as default: http://bruteforce.gr/make-apt-get-use-ipv4-instead-ipv6.html

• Working years and some co-workers help:
  • Julien Rialland