Re: [gentoo-security] iptables window of opportunity at startup

[Tobias Klausmann]

Hi! 

On Tue, 07 Feb 2006, Francois Toussenel wrote:

> On Sun, 5 Feb 2006 13:29:55 +0100 Tobias Klausmann <klausman@××××××××××××.de> wrote:
>
> > Which *should* make iptables start before net.* (maybe except
> > net.lo). And sure enough, the boot sequence is:
>
> This depends on the runlevels in which you have iptables and net.eth0.
> Could you please post the output of the following command?
>
>     # rc-update show | grep 'iptables\|net\.'
>
> By having iptables in boot and net.eth0 in default, iptables starts
> before net.eth0, but it also stops before services and of course
> net.eth0.  Does somebody know a setting to avoid that?

I'm using the defaults for both (i.e. I did what's in the install
handbook):

$ rc-update show | grep 'iptables\|net\.'
            iptables |      default                  
            net.eth0 |      default                  
              net.lo | boot                          

I really don't understand what happened on the original poster's
machine. My (wild) guess is, that somehow parallel startip messed
it up, but that would be a bug in the parallel startip code.

> (I would add that one might want to never respond to pings, for
> instance, so starting iptables between net.eth0 and services seems not
> enough.)

Why (outside of s specific attack in that area) would one *not*
respond to pings? Outside from a specific attack in that area
happening, I see no reason to do so.

Regards,
Tobias
-- 
You don't need eyes to see, you need vision.
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