From owner-freebsd-security Fri Dec 14 15:33:27 2001 Delivered-To: freebsd-security@freebsd.org Received: from I-Sphere.COM (shell.i-sphere.com [209.249.146.70]) by hub.freebsd.org (Postfix) with ESMTP id CF52837B41B for ; Fri, 14 Dec 2001 15:33:14 -0800 (PST) Received: (from fasty@localhost) by I-Sphere.COM (8.11.6/8.11.6) id fBENYln42565; Fri, 14 Dec 2001 15:34:47 -0800 (PST) (envelope-from fasty) Date: Fri, 14 Dec 2001 15:34:47 -0800 From: faSty To: Carlos Andrade Cc: freebsd-security@freebsd.org Subject: Re: okay now I am worried Message-ID: <20011214153447.F41727@i-sphere.com> References: <000001c184f6$133d72e0$fa01a8c0@rjstech.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: <000001c184f6$133d72e0$fa01a8c0@rjstech.com>; from carlos@rjstech.com on Fri, Dec 14, 2001 at 04:21:35PM -0700 Sender: owner-freebsd-security@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org Hi there, you can disable biff by edit /etc/inetd.conf and put # on biff then save it. find PID of inetd and kill -HUP PID It should go away on 512 port. -trev On Fri, Dec 14, 2001 at 04:21:35PM -0700, Carlos Andrade wrote: > The following has been in my log for a few days : > -x86 FreeBSD 4.2 machine (btw) > -logging in vain is turned on > -the only thing I am running is natd (gateway for our company) and very few > ports are specifically left open > -I do not allow inside traffic to go in to the outside nic (and vice versa) > to stop spoofing > -I specifically blocked ports 135, 139, 3389, 6667, 6668 cause nmap said > that they were responding or open for some reason. > > (date) /kernel: Connection attempt to UDP 127.0.0.1:512 from 127.0.0.1:XXXX > > where XXXX has been the following : > 1389, 1396, 1523, 1530 > > sockstat -4 returns that the only thing open is natd > user command pid fd proto local_add foreign_add > ROOT natd xxx 3 div4 *.8668 *.* > ROOT natd XXX 4 icm4 *.* *.* > > sockstat -6 returns nothing (since I am not running ip6) > > sockstat -u returns : > cron, syslogd and natd > > running ps -auwx | sort | uniq returns > buffdaemon, pagedaemon, swapper, syncer, my bash shell, init, natd, the tty > terminals, adjkerntz, syslogd, cron, and ps > > reading up on the ports udp 512 is biff, but I am not running any mail > server. The only mail I get is generated by daily reports in cron. > > so am I crazy or ? > > ---- > Carlos A. Andrade > IS Manager > RJS Technologies > 915.845.5228 ext 13 915.845.2119 fax > carlos@rjstech.com > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-security" in the body of the message -- "You should, without hesitation, pound your typewriter into a plowshare, your paper into fertilizer, and enter agriculture." -- Business Professor, University of Georgia To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-security" in the body of the message