Date: Thu, 20 Jul 2006 05:20:31 +1000 From: Peter Jeremy <peterjeremy@optushome.com.au> To: George Mamalakis <mamalos@lan.gr> Cc: freebsd-security@freebsd.org Subject: Re: UDP connection attempts Message-ID: <20060719192031.GC733@turion.vk2pj.dyndns.org> In-Reply-To: <20060719114613.N18979@ns1.lan.gr> References: <20060719114613.N18979@ns1.lan.gr>
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--u65IjBhB3TIa72Vp Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, 2006-Jul-19 12:07:08 +0300, George Mamalakis wrote: >In my security logs I keep on getting the following messages: >Jul 19 03:04:49 ns1 kernel: Connection attempt to UDP 127.0.0.1:512 from 1= 27.0.0.1:52291 As others have mentioned, this is sendmail trying to notify biff that the user has new mail but you aren't running biff. To stop it, add the following lines to your sendmail.mc file, rebuild sendmail.cf and restart sendmail: dnl Disable biff notification define(`LOCAL_MAILER_ARGS', `mail.local -Bl') --=20 Peter Jeremy --u65IjBhB3TIa72Vp Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.4 (FreeBSD) iD8DBQFEvoX+/opHv/APuIcRAh26AJ4lLS+zJNKCh2iLvhMnckphMIategCdHJiJ x6g0391W5QYI4SdxNry9JAQ= =ShNR -----END PGP SIGNATURE----- --u65IjBhB3TIa72Vp--
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