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Date:      Thu, 02 Jan 2003 14:32:40 -0500 (EST)
From:      John Baldwin <jhb@FreeBSD.org>
To:        Lucky Green <shamrock@cypherpunks.to>
Cc:        doc@FreeBSD.ORG, l.rizzo@iet.unipi.it, Nick Rogness <nick@rogness.net>
Subject:   RE: IPFW: suicidal defaults
Message-ID:  <XFMail.20030102143240.jhb@FreeBSD.org>
In-Reply-To: <003901c2b294$9f341610$6601a8c0@VAIO650>

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On 02-Jan-2003 Lucky Green wrote:
> Nick wrote:
>>      Ummm, unless things have changed, just recompiling the 
>> kernel with
>>      'options IPFIREWALL' won't enable your firewall.  You need the
>>      corresponding option in /etc/rc.conf :
>> 
>>              firewall_enable="YES"
>> 
>>      If you recompiled your kernel with 'options IPFIREWALL' 
>> and didn't
>>      enable the above switch in /etc/rc.conf then your problem isn't
>>      the firewall blocking you.  Chances are your kernel won't load
>>      properly on the machine the way you compiled it.
> 
> I assure you that I didn't have firewall_enable="YES" set and yet the
> firewall was turned on once my system came back from reboot. Stock 4.6.2
> install, security branch cvsup. I am looking at rc.* this very moment.
> 
> If I had enabled the firewall in rc.conf, I would richly deserve
> whatever punishment I got. :)
> 
> One I finally got a hold of a guy on-site, his trying to use ping on the
> server make it pretty obvious that that firewall was active. He added an
> entry to rc.local that starts up the firewall with a more lenient rule
> set, but I will look at /etc/defaults/rc.conf to figure out how IPFW is
> supposed to be started up from rc.conf.
> 
> I swear that the firewall came up without any changes to rc.conf,
> otherwise I wouldn't have emailed you folks in the first place...

Use 'firewall_enable="YES"' and 'firewall_type="open"' in /etc/rc.conf
until you come up with a ruleset.  Either that or compile your kernel
with the option to default to allow when you compile the firewall in.

-- 

John Baldwin <jhb@FreeBSD.org>  <><  http://www.FreeBSD.org/~jhb/
"Power Users Use the Power to Serve!"  -  http://www.FreeBSD.org/

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