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Date:      Tue, 9 Apr 1996 09:36:39 +0200 (MET DST)
From:      J Wunsch <j@uriah.heep.sax.de>
To:        freebsd-current@FreeBSD.org (FreeBSD-current users)
Subject:   Re: routed delete my PPP default: how to fight it?
Message-ID:  <199604090736.JAA08067@uriah.heep.sax.de>
In-Reply-To: <199604090621.XAA03064@silvia.HIP.Berkeley.EDU> from "Satoshi Asami" at Apr 8, 96 11:21:10 pm

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As Satoshi Asami wrote:

> Here's all the stuff that's in the kernel's message buffer.  It
> doesn't overflow anything, it happens only intermittently (this many
> in ~2 days).  By the way, 3128 is the port for the HTTP proxy running
> on another machine (128.32.38.224), it could have something to do with 
> me running netscape during these times.

> Connection attempt to TCP 136.152.64.181:113 from 136.152.64.181:60781
> Connection attempt to TCP 136.152.64.181:113 from 136.152.64.181:3818

That's ``auth''.  I've always wondered at my machine at work (where i
tcpdump all traffic that's going through the Internet router) who is
connecting to this port.  It's also somehow related to sendmail.

Does anybody know more about ``auth''?

> Connection attempt to UDP 136.152.64.181:1624 from 136.152.64.181:53
> Connection attempt to UDP 136.152.64.181:1625 from 136.152.64.181:53
> Connection attempt to UDP 136.152.64.181:1626 from 136.152.64.181:53
> Connection attempt to UDP 136.152.64.181:1645 from 136.152.64.181:53
> Connection attempt to UDP 136.152.64.181:1647 from 136.152.64.181:53

Looks like a reply for a DNS query, where the querying process has
been terminated before the answer arrived.

Traceroute attempts should cause a similar pattern, but with higher
portnumbers.

-- 
cheers, J"org

joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE
Never trust an operating system you don't have sources for. ;-)



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