Bugzilla Bug 24915

guarddog uses some shell scripting to determine whether to
use ipchains or iptables. The relevant code in /etc/rc.firewall
looks like this:

if [ -e /proc/sys/kernel/osrelease ]; then
  KERNEL_VERSION=`sed "s/^\([0-9][0-9]*\.[0-9][0-9]*\).*\$/\1/" < /proc/sys/kern
el/osrelease`
  if [ $KERNEL_VERSION == "2.5" ]; then
    KERNEL_VERSION="2.4"
  fi;
  if [ $KERNEL_VERSION == "2.4" ]; then
    if [ -e /sbin/iptables ]; then
      FILTERSYS=2
    fi;
    if [ -e /usr/sbin/iptables ]; then
      FILTERSYS=2
    fi;
    if [ -e /usr/local/sbin/iptables ]; then
      FILTERSYS=2
    fi;
  fi;
fi;

Obviously, this doesn't work for the recent 2.6.0-test1 kernel.

Reproducible: Always
Steps to Reproduce:
1. start guarddog
2. set some rules
3. hit "Apply" button

Actual Results:  
ERROR Can't determine the firewall command! (Is ipchains or iptables installed?)

Hopefully you actually use this, as you commited last few versions Martin.

It's getting fixed upstream.

2.1.7 was just released and has it fixed (according to the announcement).

added, thx