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Date:      Thu, 6 Dec 2001 23:55:38 +1100 (Australia/NSW)
From:      Darren Reed <avalon@cairo.anu.edu.au>
To:        rasputin@submonkey.net
Cc:        security@FreeBSD.ORG
Subject:   Re: ipf and log_in_vain
Message-ID:  <200112061255.fB6CtcKO013756@cairo.anu.edu.au>
In-Reply-To: <20011206125224.A72358@shikima.mine.nu> from "Rasputin" at Dec 06, 2001 12:52:24 PM

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In some mail from Rasputin, sie said:
[...]
> If that's the case, I'm assuming that the reason they manage to pass through
> is because keep-state directives in ipf.conf are still treating packets
> returned from (e.g.) DNS queries as part of an existing session.

Sounds quite plausible.

> Is this right, and if so, how do I drop the time an idle session is
> marked as active
> (the default is on the order of days, IIRC)?

There is a UDP specific timeout - fr_udptimeout - accessible through sysctl.

Darren

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