<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"></head><body ><div>For the greatest protection, run all email through your separate mail server. This includes:</div><div>-- inbound connections from Internet hosts to your public I address,</div><div>-- inbound connections from Internet hosts to your 44.x address via tunnel from the AMPRnet gateway, and</div><div>-- inbound connections from other 44.x machines to your 44.x address via tunnels</div><div><br></div><div>M</div><div><br></div><div><br></div><div><br></div><div><div style="font-size:9px;color:#575757">Sent from my Verizon Wireless 4G LTE smartphone</div></div><br><br>-------- Original message --------<br>From: Jose Ng Lee <hp2cwb@cwpanama.net> <br>Date:03/17/2014 8:39 AM (GMT-08:00) <br>To: Michael E Fox - N6MEF <n6mef@mefox.org>,'TAPR xNOS Mailing List' <nos-bbs@tapr.org> <br>Subject: Re: [nos-bbs] How to avoid SMTP spam mail in mqueue <br><br>
<div><font size="2" face="Arial">Thanks Michael for the tips on how to protect my
Jnos.</font></div>
<div><font size="2" face="Arial"></font> </div>
<div><font size="2" face="Arial">I could block SMTP (port 25) on the Firewall for
inbound mails to TUN0, but does that block also the good mail 44
route coming fron encap?</font></div>
<div><font size="2" face="Arial"></font> </div>
<div><font size="2" face="Arial">I trying to figure out why my Jnos accepted all
those incoming spam mail. It should have issue an SMTP DENY and not
accepted those emails. Maybe, there is a script somewhere on my CentOS
machine allowing the entrace. So will keep looking.</font></div>
<div><font size="2" face="Arial"></font> </div>
<div><font size="2" face="Arial">José / HP2AT</font></div>
<div><font size="2" face="Arial"></font> </div>
<blockquote style="BORDER-LEFT: #000000 2px solid; PADDING-LEFT: 5px; PADDING-RIGHT: 0px; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px" dir="ltr">
<div style="FONT: 10pt arial">----- Original Message ----- </div>
<div style="FONT: 10pt arial; BACKGROUND: #e4e4e4; font-color: black"><b>From:</b>
<a title="n6mef@mefox.org" href="mailto:n6mef@mefox.org">Michael E Fox -
N6MEF</a> </div>
<div style="FONT: 10pt arial"><b>To:</b> <a title="hp2cwb@cwpanama.net" href="mailto:hp2cwb@cwpanama.net">'Jose Ng Lee'</a> ; <a title="nos-bbs@tapr.org" href="mailto:nos-bbs@tapr.org">'TAPR xNOS Mailing
List'</a> </div>
<div style="FONT: 10pt arial"><b>Sent:</b> Monday, March 17, 2014 8:28
AM</div>
<div style="FONT: 10pt arial"><b>Subject:</b> RE: [nos-bbs] How to avoid SMTP
spam mail in mqueue</div>
<div><br></div>
<div class="WordSection1">
<p class="MsoNormal"><span style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt">Block
direct inbound SMTP connections to JNOS. <o:p></o:p></span></p>
<p class="MsoNormal"><span style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt">Set
up an MX in Linux using all the modern spam avoidance mechanisms dynamic black
lists, UBE detection, signature-based detection, etc.) and send all inbound
email to JNOS through that mail server using an MX record in DNS.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt">Michael<o:p></o:p></span></p>
<p class="MsoNormal"><span style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt">N6MEF<o:p></o:p></span></p>
<p class="MsoNormal"><span style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"><o:p> </o:p></span></p>
<div>
<div style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; PADDING-RIGHT: 0in; BORDER-TOP: #e1e1e1 1pt solid; BORDER-RIGHT: medium none; PADDING-TOP: 3pt">
<p style="MARGIN-LEFT: 0.5in" class="MsoNormal"><b><span style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: windowtext; FONT-SIZE: 11pt">From:</span></b><span style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: windowtext; FONT-SIZE: 11pt">
<a href="mailto:nos-bbs-bounces@tapr.org">nos-bbs-bounces@tapr.org</a>
[mailto:nos-bbs-bounces@tapr.org] <b>On Behalf Of </b>Jose Ng
Lee<br><b>Sent:</b> Sunday, March 16, 2014 10:55 PM<br><b>To:</b> TAPR xNOS
Mailing List<br><b>Subject:</b> [nos-bbs] How to avoid SMTP spam mail in
mqueue<o:p></o:p></span></p></div></div>
<p style="MARGIN-LEFT: 0.5in" class="MsoNormal"><o:p> </o:p></p>
<div>
<p style="MARGIN-LEFT: 0.5in" class="MsoNormal"><span style="FONT-FAMILY: 'Arial','sans-serif'">I noticed today my Raspberry Pi Jnos
was respawing in every few minutes. So, I checked and found out
there was some spam e-mails in mqueue not been able to deliver and causing the
system to crash and respawn. Deleted those e-mails and checking the logs
and put in blacklist the offender IPs.</span><o:p></o:p></p></div>
<div>
<p style="MARGIN-LEFT: 0.5in" class="MsoNormal"> <o:p></o:p></p></div>
<div>
<p style="MARGIN-LEFT: 0.5in" class="MsoNormal"><span style="FONT-FAMILY: 'Arial','sans-serif'">I play with 3 Jnos
systems:</span><o:p></o:p></p></div>
<div>
<p style="MARGIN-LEFT: 0.5in" class="MsoNormal"> <o:p></o:p></p></div>
<div>
<p style="MARGIN-LEFT: 0.5in" class="MsoNormal"><span style="FONT-FAMILY: 'Arial','sans-serif'">Main systems PC with Linux Ubuntu
12.04 LTS: onx.hp2at.ampr.org</span><o:p></o:p></p></div>
<div>
<p style="MARGIN-LEFT: 0.5in" class="MsoNormal"><span style="FONT-FAMILY: 'Arial','sans-serif'">No spam mail in
mqueue.</span><o:p></o:p></p></div>
<div>
<p style="MARGIN-LEFT: 0.5in" class="MsoNormal"> <o:p></o:p></p></div>
<div>
<p style="MARGIN-LEFT: 0.5in" class="MsoNormal"><span style="FONT-FAMILY: 'Arial','sans-serif'">Raspberry Pi with Raspbian:
hp2ng.ampr.org</span><o:p></o:p></p></div>
<div>
<p style="MARGIN-LEFT: 0.5in" class="MsoNormal"><span style="FONT-FAMILY: 'Arial','sans-serif'">Few spam mail in
mqueue.</span><o:p></o:p></p></div>
<div>
<p style="MARGIN-LEFT: 0.5in" class="MsoNormal"> <o:p></o:p></p></div>
<div>
<p style="MARGIN-LEFT: 0.5in" class="MsoNormal"><span style="FONT-FAMILY: 'Arial','sans-serif'">PC with Centos 5.9:
hp2sa.ampr.org</span><o:p></o:p></p></div>
<div>
<p style="MARGIN-LEFT: 0.5in" class="MsoNormal"><span style="FONT-FAMILY: 'Arial','sans-serif'">THOUSANDS of spam mail in
mqueue. Don't know how this got through or why it was received in
JNOS. The autoexec.nos is the same as my other
system.</span><o:p></o:p></p></div>
<div>
<p style="MARGIN-LEFT: 0.5in" class="MsoNormal"> <o:p></o:p></p></div>
<div>
<p style="MARGIN-LEFT: 0.5in" class="MsoNormal"><span style="FONT-FAMILY: 'Arial','sans-serif'">This is on the message heading on
one mail:</span><o:p></o:p></p></div>
<div>
<p style="MARGIN-LEFT: 0.5in" class="MsoNormal"> <o:p></o:p></p></div>
<div>
<p style="MARGIN-LEFT: 0.5in" class="MsoNormal"><span style="FONT-FAMILY: 'Arial','sans-serif'">Received: from pc-200402271018 by
hp2sa.ampr.org (ONXSA BBS) with
SMTP<br> id AA24803 ; Thu, 13 Mar
2014 03:17:52 EST<br>From: =?BIG5?B?pWqo5a21vNY=?= <<a href="mailto:springboard@yahoo.com">springboard@yahoo.com</a>><br>To:
"awze" <<a href="mailto:awze@awze.com">awze@awze.com</a>><br>Subject:<br> =?BIG5?B?RGlzbmV5qOC1o7nPrtGhQqlfpf2lzaeupHCpaiC1paqpxXao7LTBuc+u0aFCpfq6?=<br> =?BIG5?B?0KRqpViyTaFJ?=<br>Date:
Wed, 28 Apr 2004 22:58:06 +0800<br>MIME-Version: 1.0<br>Content-Type:
text/html;<br>
charset="Big5"<br>Content-Transfer-Encoding: quoted-printable<br>X-Priority:
3<br>X-MSMail-Priority: Normal<br>X-Mailer: Microsoft Outlook Express
6.00.2800.1106<br>X-MimeOLE: Produced By Microsoft MimeOLE
V6.00.2800.1106<br>Message-Id: <<a href="mailto:24804@hp2sa.ampr.org">24804@hp2sa.ampr.org</a>></span><o:p></o:p></p></div>
<div>
<p style="MARGIN-LEFT: 0.5in" class="MsoNormal"><span style="FONT-FAMILY: 'Arial','sans-serif'">Took this JNOS offline until the
problem solve.</span><o:p></o:p></p></div>
<div>
<p style="MARGIN-LEFT: 0.5in" class="MsoNormal"> <o:p></o:p></p></div>
<div>
<p style="MARGIN-LEFT: 0.5in" class="MsoNormal"><span style="FONT-FAMILY: 'Arial','sans-serif'">Please can anyone know a way to deny
receiving spam mail in jnos.</span><o:p></o:p></p></div>
<div>
<p style="MARGIN-LEFT: 0.5in" class="MsoNormal"> <o:p></o:p></p></div>
<div>
<p style="MARGIN-LEFT: 0.5in" class="MsoNormal"><span style="FONT-FAMILY: 'Arial','sans-serif'">Thanks,</span><o:p></o:p></p></div>
<div>
<p style="MARGIN-LEFT: 0.5in" class="MsoNormal"><span style="FONT-FAMILY: 'Arial','sans-serif'">José /
HP2AT</span><o:p></o:p></p></div></div></blockquote>
</body>