LinuxQuestions.org - iptables slackware questions

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iptables slackware questions

When I make iptable rules, I run "iptables-save" but when I log back on all the rules are gone. How do you save your iptables entry so it's there on startup?

Also, I remember RedHat having a file with all the rules in it. Does slackware have something like this? What if I want to delete a rule? Is there a way I can go into a file and delete it?

Somewhere along your initscripts, you have to run iptables-restore. I'm not sure how Slack handles this, there should be a firewall specific initscript that you can add that line to, otherwise, add the command to your rc.local (or equivalent) file.

You save your iptables script in /etc/rc.d/rc.firewall. Search this site for 'Slackware' and 'rc.firewall'

Bettter were to write functions (start, stop, restart) in the /etc/rc.d/rc.firewall script, so u can delete those rules in the function stop. This is the slackware way of doing thing ?!

Code:

#!/bin/sh

# /etc/rc.d/rc.firewall



IPT=/usr/sbin/iptables



# Reset all previous iptables rules

firewall_stop() {

  $IPT -F

  $IPT -t nat -F

  $IPT -t mangle -F

  $IPT --delete-chain

  $IPT -t nat --delete-chain

  echo "All tables, rules are reset"

}



firewall_start() {

  echo "firewall start"

}



case "$1" in

'start')

  firewall_start

  ;;

'stop')

  firewall_stop

  ;;

'restart')

  firewall_restart

  ;;

'reload')

  firewall_reload

  ;;

'status')

  firewall_status

  $IPT -nL ;;

*)

  echo "usage $0 start|stop|restart|reload|status"

esac