Date: Mon, 9 Oct 2000 21:42:25 +0200 From: Gerhard Sittig <Gerhard.Sittig@gmx.net> To: "freebsd-security@FreeBSD.ORG" <freebsd-security@FreeBSD.ORG> Subject: Re: Default Deny Message-ID: <20001009214225.W31338@speedy.gsinet> In-Reply-To: <200010091718.e99HI2f07206@ogyo.pointer-software.com>; from horio@acm.org on Tue, Oct 10, 2000 at 02:17:08AM %2B0900 References: <200010060056.LAA11152@cairo.anu.edu.au> <39DCC1CB.5FDD7F90@allmaui.com> <20001006204807.M31338@speedy.gsinet> <39DE8D1B.923D86DF@allmaui.com> <20001007171153.P31338@speedy.gsinet> <200010091718.e99HI2f07206@ogyo.pointer-software.com>
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On Tue, Oct 10, 2000 at 02:17 +0900, horio shoichi wrote:
> Gerhard Sittig wrote:
> >
> > > I use this to reload my settings after changes
> > >
> > > #!/bin/sh
> > > ipf -D
> > > ipf -Fa -f /etc/ipf.conf -E
> > > ipnat -CF -f /etc/ipnat.conf
> >
> > I would prefer something like
> >
> > ipf -I -Fa -f /etc/ipf.conf -v
> > ( ipf -s; sleep 60; ipf -s; ) &
> > # heavy testing until the prompt returns
> > ipf -s # only when you're happy with what the test showed
> >
>
> Here is my preference.
>
> ipf -IFa -If ./ipf.rules >errors 2>&1
> cat errors
> test ! -s errors && { rm errors ; ipf -s ; }
This will only catch syntax errors and doesn't save you from
wrongly implemented rules or faults in your mind due to lack of
coffee or sleep. That's why I implement a testing window with
the above sequence and an automatic fallback to a known to work
state, from where you can decide to activate the previously
tested set or to keep on editing it. And it wasn't my own idea
to do it that way but I learned it from some ipf doc. But once
you created a rule set to lock yourself out, you're very glad the
situation will cure itself within a few seconds! Especially when
you're not sitting in front of the machine.
virtually yours 82D1 9B9C 01DC 4FB4 D7B4 61BE 3F49 4F77 72DE DA76
Gerhard Sittig true | mail -s "get gpg key" Gerhard.Sittig@gmx.net
--
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