From owner-freebsd-isp@FreeBSD.ORG Thu Mar 5 23:27:48 2009 Return-Path: Delivered-To: freebsd-isp@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 83B45106564A for ; Thu, 5 Mar 2009 23:27:48 +0000 (UTC) (envelope-from usmanbsd@yahoo.com) Received: from web56404.mail.re3.yahoo.com (web56404.mail.re3.yahoo.com [216.252.111.83]) by mx1.freebsd.org (Postfix) with SMTP id 3B5668FC15 for ; Thu, 5 Mar 2009 23:27:48 +0000 (UTC) (envelope-from usmanbsd@yahoo.com) Received: (qmail 84826 invoked by uid 60001); 5 Mar 2009 23:01:06 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.com; s=s1024; t=1236294066; bh=epnHD6Kwi5EXQhvqgxT7EnIzVBOHQutFkhHAj+F5emM=; h=Message-ID:X-YMail-OSG:Received:X-Mailer:Date:From:Reply-To:Subject:To:In-Reply-To:MIME-Version:Content-Type; b=yge9SjV7jzj77BjoiZQZiG6kb68c4+NImKoL+XQuRcklj1NOeoNOWGVdvqxJ1suWHFKjXcSqv4D/j1BnO1LRsykRbjT13AFO28IZQQQopU/8lu0GPxXxV61ZUTGHOU9jUdrzjNwlpRgjNGyfaENSK4OWnyL83kU47D2iwOFAcO4= DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=Message-ID:X-YMail-OSG:Received:X-Mailer:Date:From:Reply-To:Subject:To:In-Reply-To:MIME-Version:Content-Type; b=4nG7PvTU1TYhhAjqbDpQpb6TRy9+DFT46wby7pTYfrvVZOBUupn7VCAEmbrOwiYbvo8y4Lkic8ECUYRcFlNXMOdjP9p3YjUXbZ2MLxrTzztI1PXtzuFloe0U4FuCPSJJVz+wk4dokDECn2Qz64+kegAoaCetnUKQJnu4xsb9vWo=; Message-ID: <389006.84764.qm@web56404.mail.re3.yahoo.com> X-YMail-OSG: JX8gEzEVM1lc7.R9u0oNRhFK9Za1is2crB20nuyv9bsojMtqndFSATVC2ul522BWaJHHuiJGe8zV6NcMJGCQN6JywPt2T1B61UgapDWgLamvRQpZi6mqnV6jwxKS3s1Vab0eKM3cDNhXn83s5MDyGhlg70PZYtUmrros7eyMlf3zg5m0Kl6GDBNfSV3osKAqSSwDdBjQYzEKQNQZi0nlQeBl7uE3pLA- Received: from [116.71.182.6] by web56404.mail.re3.yahoo.com via HTTP; Thu, 05 Mar 2009 15:01:06 PST X-Mailer: YahooMailWebService/0.7.289.1 Date: Thu, 5 Mar 2009 15:01:06 -0800 (PST) From: muhammad usman To: freebsd-isp@freebsd.org, Mark E Doner In-Reply-To: <49A38202.7010506@amplex.net> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Cc: Subject: Re: rate limiting mail server X-BeenThere: freebsd-isp@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: usmanbsd@yahoo.com List-Id: Internet Services Providers List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 05 Mar 2009 23:27:48 -0000 In any case implementing=A0first layer of=A0tcp syn proxy will be always us= eful, just one command for everyone. =A0 http://www.openbsd.org/faq/pf/filter.html#synproxy =A0 after that use any other layer of limitation as others suggested. =A0 --- On Tue, 2/24/09, Mark E Doner wrote: From: Mark E Doner Subject: rate limiting mail server To: freebsd-isp@freebsd.org Date: Tuesday, February 24, 2009, 10:13 AM Greetings, I am running a fairly large mail server, FreeBSD, of course. It is predominantly for residential customers, so educating the end users to not = fall for the scams is never going to happen. Whenever we have a customer actuall= y hand over their login credentials, we quickly see a huge flood of inbound connections from a small handful of IP addresses on ports 25 and 587, all authenticate as whatever customer fell for the scam du jour, and of course,= load goes through the roof as I get a few thousand extra junk messages to proces= s in a matter of minutes. Thinking about using PF to rate limit inbound connections, stuff the hog wi= ld connection rates into a table and drop them quickly. My question is, I know= how to do this, PF syntax is easy, but has anyone ever tried this? How many new connections per minute from a single source are acceptable, and what is blatantly malicious? And, once I have determined that, how long should I le= ave the offenders in the blocklist? Any thoughts appreciated, Mark _______________________________________________ freebsd-isp@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-isp To unsubscribe, send any mail to "freebsd-isp-unsubscribe@freebsd.org" =0A=0A=0A From owner-freebsd-isp@FreeBSD.ORG Fri Mar 6 11:40:28 2009 Return-Path: Delivered-To: freebsd-isp@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 92841106566C for ; Fri, 6 Mar 2009 11:40:28 +0000 (UTC) (envelope-from monitor@1stnewsletters.com) Received: from smtp.1stinfosystems.com (ns1.1stinfosystems.com [207.178.197.212]) by mx1.freebsd.org (Postfix) with ESMTP id 1AD268FC12 for ; Fri, 6 Mar 2009 11:40:24 +0000 (UTC) (envelope-from monitor@1stnewsletters.com) Received: from mail pickup service by smtp.1stinfosystems.com with Microsoft SMTPSVC; Fri, 6 Mar 2009 03:36:01 -0800 From: "Jeff Kelley, DDS" X-NEWSLETTER1R: pTmmgXO3F4C78zgpFlpFOOcGt+c= X-NEWSLETTER2A: 000036084 To: "freebsd-isp@freebsd.org" Message-ID: Date: Fri, 06 Mar 2009 03:35:48 -0800 MIME-Version: 1.0 X-OriginalArrivalTime: 06 Mar 2009 11:36:01.0563 (UTC) FILETIME=[B9EC0EB0:01C99E4F] Content-Type: text/plain; charset=Windows-1252 Content-Transfer-Encoding: quoted-printable X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Subject: Know Thyself: Self-Screening for Oral Cancer X-BeenThere: freebsd-isp@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: jakelleydds@sbcglobal.net List-Id: Internet Services Providers List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 06 Mar 2009 11:40:29 -0000 Greetings from Jeff Kelley, DDS! Know Thyself: Self-Screening for Oral Cancer When it comes to leading a long, healthy life, it=92s always best to kn= ow yourself=2E While this advice can take on significant philosophical = meaning, I=92m talking about knowing yourself better physically=2E Bein= g in tune with your body and watching out for early symptoms of disease= can be your ticket to perpetually good health=2E Every hour of every day somebody in the United States dies of oral canc= er=2E This serious dental disease, which affects the mouth, lips or thr= oat, is often highly curable if diagnosed and treated in its early stag= es=2E When you go in for your regular dental exam, you=92re also being = screened for oral cancer=2E While that=92s fine and dandy, it=92s best = to go a step beyond, screening yourself at home regularly=2E This is do= ubly true for those who drink excessive amounts of alcohol, use tobacco= products, are regularly exposed to sunlight, have lip-biting and cheek= -chewing habits or have ill-fitting dentures, as all of these character= istics put you at greater risk=2E Here=92s how to screen for oral cancer at home:=20 - Examine yourself in the mirror=2E The left and right sides of the fac= e and neck should have the same shape=2E Check for swelling, lumps and = bumps=2E - Look at your skin and note any changes in the color or size of sores,= moles or other growths=2E - Press your fingers along the sides and front of your neck=2E Do you f= eel any tenderness or swelling? - Pull your lower lip out and look for any sores=2E Use your thumb and = forefinger to feel the upper and lower lips for lumps or texture change= s=2E - Examine the insides of your cheeks for red, white or dark patches=2E = Gently squeeze and roll each cheek between your index finger and thumb = to check for bumps and tenderness=2E - Tilt your head back to check the roof of your mouth, and then run you= r finger along the surface=2E Do you feel or see any unusual lumps or d= iscoloration? - Check out the top, bottom and sides of your tongue, including the sof= t tissue under it=2E Once again, note any swelling, discoloration or un= usual lumps=2E Symptoms of oral cancer include: sores on the face, neck or mouth that = do not heal within a couple of weeks; swelling, lumps or bumps on the l= ips and gums; chronic bleeding in the mouth; white, red or dark patches= in your lips, cheeks, gums or tongue; and numbness, loss of feeling or= general pain in any area of the face, mouth or neck=2E If you experien= ce any of these symptoms, or find something unusual during your self-ex= am, call our office at (817)877-1651 immediately for an appointment! If you have questions regarding dental health, please call us at (817)8= 77-1651 or email us at jakelleydds@sbcglobal=2Enet today=2E Best Regards, Jeff Kelley, DDS P=2ES=2E If you have any friends or family members who you feel could u= se our services, please don't hesitate to have them call us=2E We'll be= sure to take good care of them=2E From owner-freebsd-isp@FreeBSD.ORG Fri Mar 6 12:20:15 2009 Return-Path: Delivered-To: freebsd-isp@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id A38291065673 for ; Fri, 6 Mar 2009 12:20:15 +0000 (UTC) (envelope-from monitor@1stnewsletters.com) Received: from smtp.1stinfosystems.com (ns1.1stinfosystems.com [207.178.197.212]) by mx1.freebsd.org (Postfix) with ESMTP id 88EF28FC0A for ; Fri, 6 Mar 2009 12:20:15 +0000 (UTC) (envelope-from monitor@1stnewsletters.com) Received: from mail pickup service by smtp.1stinfosystems.com with Microsoft SMTPSVC; Fri, 6 Mar 2009 04:20:12 -0800 From: "Dr. Josh Leute" X-NEWSLETTER1R: pTmmgXO3F4C78zgpFlpFOOcGt+c= X-NEWSLETTER2A: 000036191 To: "freebsd-isp@freebsd.org" Message-ID: Date: Fri, 06 Mar 2009 04:20:12 -0800 MIME-Version: 1.0 X-OriginalArrivalTime: 06 Mar 2009 12:20:12.0610 (UTC) FILETIME=[E611BA20:01C99E55] Content-Type: text/plain; charset=Windows-1252 Content-Transfer-Encoding: quoted-printable X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Subject: Know Thyself: Self-Screening for Oral Cancer X-BeenThere: freebsd-isp@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: drleute@familydentistportwashington.com List-Id: Internet Services Providers List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 06 Mar 2009 12:20:15 -0000 Greetings from Dr=2E Josh Leute! Know Thyself: Self-Screening for Oral Cancer When it comes to leading a long, healthy life, it=92s always best to kn= ow yourself=2E While this advice can take on significant philosophical = meaning, I=92m talking about knowing yourself better physically=2E Bein= g in tune with your body and watching out for early symptoms of disease= can be your ticket to perpetually good health=2E Every hour of every day somebody in the United States dies of oral canc= er=2E This serious dental disease, which affects the mouth, lips or thr= oat, is often highly curable if diagnosed and treated in its early stag= es=2E When you go in for your regular dental exam, you=92re also being = screened for oral cancer=2E While that=92s fine and dandy, it=92s best = to go a step beyond, screening yourself at home regularly=2E This is do= ubly true for those who drink excessive amounts of alcohol, use tobacco= products, are regularly exposed to sunlight, have lip-biting and cheek= -chewing habits or have ill-fitting dentures, as all of these character= istics put you at greater risk=2E Here=92s how to screen for oral cancer at home:=20 - Examine yourself in the mirror=2E The left and right sides of the fac= e and neck should have the same shape=2E Check for swelling, lumps and = bumps=2E - Look at your skin and note any changes in the color or size of sores,= moles or other growths=2E - Press your fingers along the sides and front of your neck=2E Do you f= eel any tenderness or swelling? - Pull your lower lip out and look for any sores=2E Use your thumb and = forefinger to feel the upper and lower lips for lumps or texture change= s=2E - Examine the insides of your cheeks for red, white or dark patches=2E = Gently squeeze and roll each cheek between your index finger and thumb = to check for bumps and tenderness=2E - Tilt your head back to check the roof of your mouth, and then run you= r finger along the surface=2E Do you feel or see any unusual lumps or d= iscoloration? - Check out the top, bottom and sides of your tongue, including the sof= t tissue under it=2E Once again, note any swelling, discoloration or un= usual lumps=2E Symptoms of oral cancer include: sores on the face, neck or mouth that = do not heal within a couple of weeks; swelling, lumps or bumps on the l= ips and gums; chronic bleeding in the mouth; white, red or dark patches= in your lips, cheeks, gums or tongue; and numbness, loss of feeling or= general pain in any area of the face, mouth or neck=2E If you experien= ce any of these symptoms, or find something unusual during your self-ex= am, call our office at (262)284-5884 immediately for an appointment! If you have questions regarding dental health, please call us at (262)2= 84-5884 or email us at drleute@familydentistportwashington=2Ecom today=2E Best Regards, Dr=2E Josh Leute P=2ES=2E If you have any friends or family members who you feel could u= se our services, please don't hesitate to have them call us=2E We'll be= sure to take good care of them=2E