Date: Sun, 23 Jul 2000 18:22:04 -0400 From: Mike Tancsa <mike@sentex.net> To: Stanley Hopcroft <Stanley.Hopcroft@IPAustralia.Gov.AU>, security@FreeBSD.ORG Subject: Re: What does this mean and how do I stop it ? Message-ID: <4.2.2.20000723181947.04949220@mail.sentex.net> In-Reply-To: <Pine.BSF.4.21.0007240853450.326-100000@stan>
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At 08:56 AM 7/24/00 +1000, Stanley Hopcroft wrote:
>Dear Ladeis and Gentlemen,
>
>These entries appear frequently in the daily security report of a
>FreeBSD 4.0-RELEASE machine (Bind 8.2.x)
>
> > Connection attempt to UDP 127.0.0.1:2343 from 127.0.0.1:53
>
>What do they mean and if they are not signs of bad things how can I get
>rid of them ?
It means a UDP packet from 127.0.0.1 port 53 got sent to 127.0.0.1 port
2343, but nothing there was listening. If you want to disable it type,
sysctl net.inet.udp.log_in_vain=0
---Mike
--------------------------------------------------------------------
Mike Tancsa, tel +1 519 651 3400
Network Administration, mike@sentex.net
Sentex Communications www.sentex.net
Cambridge, Ontario Canada www.sentex.net/mike
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