<div dir="auto">Hello Indunil,<div dir="auto">I'm certain that the original poster understands this, and purposefully blocks all outgoing communication from his server as a security measure. </div><div dir="auto"><br></div><div dir="auto">He is far from the only one to implement the 'principle of least privilege'. In fact, his firewall settings prohibit any sort of malicious actor who manages to gain control on the system from wreaking havoc anywhere else. It blocks command and control server contacts. It blocks a lot of potential problems when you want security to actually work and not have holes all over the place.</div><div dir="auto"><br></div><div dir="auto">Almost everyone assumes that outbound communication should be treated as 'ok' but in many contexts this is simply not a good idea.</div><div dir="auto"><br></div><div dir="auto">Mike</div><div dir="auto"><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Nov 3, 2020, 13:43 Indunil Jayasooriya <<a href="mailto:indunil75@gmail.com">indunil75@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><br>
grep "208.83.137." messages<br><br>
DST=208.83.137.117 <br>
or<br>
DST=208.83.137.118 <br><br>
DST for destination. It's OUTBOLUND. <br></blockquote><div> You can use amavisd-new without it. </div><div><br></div><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
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netstat -atnp | grep "208.83.137.118"<br>
tcp 0 1 MYSERVERIP:53418 <a href="http://208.83.137.118:2703" rel="noreferrer noreferrer" target="_blank">208.83.137.118:2703</a> SYN_SENT<br>
7620/amavisd (ch7-0<br>
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</blockquote></div><br clear="all"><div><br></div>-- <br><div dir="ltr"><div dir="ltr"><div><div dir="ltr">cat /etc/motd<br><br>Thank you<br>Indunil Jayasooriya <br><a href="http://www.theravadanet.net/" target="_blank" rel="noreferrer">http://www.theravadanet.net/</a><br><br></div></div></div></div></div>
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