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Date:      Mon, 23 Apr 2001 22:53:59 +0100
From:      Mark Drayton <mark.drayton@4thwave.co.uk>
To:        Beech Rintoul <freebsd-questions@freebsd.org>
Subject:   Re: Continously getting error 'rpc.statd: invalid hostname to sm_stat: ...' could it be a DOS attack?
Message-ID:  <20010423225359.A14549@tethys.valhalla.net>
In-Reply-To: <01042310270701.01587@galaxy.anchoragerescue.org>; from akbeech@anchoragerescue.org on Mon, Apr 23, 2001 at 10:27:07AM -0800
References:  <200104231831.OAA47437@mail2.wmptl.com> <01042310270701.01587@galaxy.anchoragerescue.org>

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Beech Rintoul (akbeech@anchoragerescue.org) wrote:
> On Monday 23 April 2001 10:31, Nathan Vidican wrote:
> > We have been, (for several weeks now), been getting the error
> > message (logged to both the console, and /var/log/messages) as
> > follows:

[snip linux rpc.statd overflow log message]

> It' a hack attempt with an old Linux kiddie script. Never affected
> FreeBSD, and no longer works on Linux. I wouldn't worry about it, we
> get that three or four times a day.

You should firewall off access to your NFS daemons and get
some kind of intrusion detection system (such as snort) to log the
source address of these attacks. NFS daemons should not be accessible
from the internet.

-- 

Mark Drayton

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