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Date:      Tue, 4 Feb 2003 15:43:41 -0500 (EST)
From:      Robert Watson <rwatson@freebsd.org>
To:        "Marc G. Fournier" <scrappy@hub.org>
Cc:        Dag-Erling Smorgrav <des@ofug.org>, chat@freebsd.org
Subject:   Re: Good PR
Message-ID:  <Pine.NEB.3.96L.1030204154218.20508f-100000@fledge.watson.org>
In-Reply-To: <20030204145121.X63349@hub.org>

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On Tue, 4 Feb 2003, Marc G. Fournier wrote:

> Has anyone figured out what broken in recent FreeBSD releases (am
> running 4.7-STABLE right now) such that Netcraft can't even detect the
> OS anymore, let alone uptimes? 

I'm not sure it's anything broken with FreeBSD; more likely, it's that the
stack changed and the fingerprints haven't been updated.  If I had to
guess, it's the current flavor of syncookies/syncache.  Not sure how you
report new signatures to Netcraft -- nmap seems to do the right thing. 
Any time there are observable changes in a network stack, fingerprinting
techniques are likely to get confused.

Robert N M Watson             FreeBSD Core Team, TrustedBSD Projects
robert@fledge.watson.org      Network Associates Laboratories


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