From owner-freebsd-security Fri Jul 2 8: 8: 1 1999 Delivered-To: freebsd-security@freebsd.org Received: from host07.rwsystems.net (kasie.rwsystems.net [209.197.192.103]) by hub.freebsd.org (Postfix) with ESMTP id 7DE3F156A8 for ; Fri, 2 Jul 1999 08:07:57 -0700 (PDT) (envelope-from jwyatt@RWSystems.net) Received: from kasie.rwsystems.net([209.197.192.103]) (1905 bytes) by host07.rwsystems.net via sendmail with P:esmtp/R:bind_hosts/T:inet_zone_bind_smtp (sender: ) id for ; Fri, 2 Jul 1999 10:01:38 -0500 (CDT) (Smail-3.2.0.104 1998-Nov-20 #1 built 1998-Dec-24) Date: Fri, 2 Jul 1999 10:01:37 -0500 (CDT) From: James Wyatt To: Josef Karthauser Cc: Dag-Erling Smorgrav , Snob Art Genre , Bill Fink , freebsd-security@FreeBSD.ORG Subject: Re: your mail In-Reply-To: <19990702104239.X69050@pavilion.net> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-security@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org On Fri, 2 Jul 1999, Josef Karthauser wrote: [ ... ] > He's on a local area network that I'm part of. I provide routed access to > the internet, but he's allowed access to the network to connect to other > users (this is at home, not at work - he rent's a room from me.) The problem > is that he's running Internet Explorer 5 in stupid "go on line for no reason > at all" mode and until he's either un-installed it, or fixed the problem > I've told him that I'm shutting down his internet access. That said he's > been a naughty boy and changed his IP address a couple of times to other > people's. He thinks that I don't know, but of course I've got changing > ARP addresses. What I'd like to do now is ignore his MAC address on the > server instead to get around this. (I could disconnect him from the network > but that's harder to police.) Ah, much better detail. He can be your toy, then! Nothing quite like flood-pinging a WinBox on a local segment! Could you proxy&cache the requests to reduce actual net traffic? You can also hardwire your ARP table for the other users' addresses and flush non-perm entries frequently... - Jy@ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-security" in the body of the message