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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link="#0563C1" vlink="#954F72"><div class=WordSection1><p class=MsoPlainText><o:p> </o:p></p><p class=MsoPlainText>Thanks for all the comments. <o:p></o:p></p><p class=MsoPlainText><o:p> </o:p></p><p class=MsoPlainText>One more thing I can control it through rate limit or block whole but the same thing happened to another network will be problem ?? <o:p></o:p></p><p class=MsoPlainText><o:p> </o:p></p><p class=MsoPlainText>See the packet capture from the network device the outgoing traffic passing from 0 port instead of 53. Why is that any clue. I mean bind application should not all other port instead 53??<o:p></o:p></p><div style='mso-element:para-border-div;border:none;border-bottom:double windowtext 2.25pt;padding:0in 0in 1.0pt 0in'><p class=MsoPlainText style='border:none;padding:0in'><o:p> </o:p></p></div><p class=MsoPlainText><o:p> </o:p></p><p class=MsoPlainText><o:p> </o:p></p><p class=MsoPlainText>Gi0/2 212.119.64.2 Gi0/1 212.118.122.99 11 0000 0000 362K<o:p></o:p></p><p class=MsoPlainText>Gi0/2 212.119.64.3 Gi0/1 212.118.122.99 11 0000 0000 66K<o:p></o:p></p><p class=MsoPlainText>Gi0/2 212.119.64.2 Gi0/1 212.118.122.100 11 0000 0000 375K<o:p></o:p></p><p class=MsoPlainText>Gi0/2 212.119.64.3 Gi0/1 212.118.122.100 11 0000 0000 68K<o:p></o:p></p><p class=MsoPlainText>Gi0/2 212.119.64.2 Gi0/1 212.118.122.101 11 0000 0000 362K<o:p></o:p></p><div style='mso-element:para-border-div;border:none;border-bottom:double windowtext 2.25pt;padding:0in 0in 1.0pt 0in'><p class=MsoPlainText style='border:none;padding:0in'>Gi0/2 212.119.64.3 Gi0/1 212.118.122.101 11 0000 0000 66K<o:p></o:p></p></div><p class=MsoPlainText><o:p> </o:p></p><p class=MsoPlainText>Thanks in advance for your support. <o:p></o:p></p><p class=MsoPlainText><o:p> </o:p></p><p class=MsoPlainText>Ejaz <o:p></o:p></p><p class=MsoPlainText><o:p> </o:p></p><p class=MsoPlainText>-----Original Message-----<br>From: Tony Finch [mailto:dot@dotat.at] <br>Sent: Tuesday, July 26, 2016 11:54 AM<br>To: Ejaz <mejaz@cyberia.net.sa><br>Cc: 'Abdul Khader' <akhader@ies.etisalat.ae>; bind-users@lists.isc.org<br>Subject: RE: outgoing-traffic</p><p class=MsoPlainText><o:p> </o:p></p><p class=MsoPlainText>Ejaz <<a href="mailto:mejaz@cyberia.net.sa"><span style='color:windowtext;text-decoration:none'>mejaz@cyberia.net.sa</span></a>> wrote:<o:p></o:p></p><p class=MsoPlainText>><o:p> </o:p></p><p class=MsoPlainText>> I am not using iptable firewall from my redhat Linux box, all <o:p></o:p></p><p class=MsoPlainText>> traffic manged by network team..<o:p></o:p></p><p class=MsoPlainText><o:p> </o:p></p><p class=MsoPlainText>Well then, you should co-operate with them to fix the problem.<o:p></o:p></p><p class=MsoPlainText><o:p> </o:p></p><p class=MsoPlainText>You might find that it helps to put the following in the options{} section of named.conf, but I'm not sure if it will be effective against a TCP flood attack.<o:p></o:p></p><p class=MsoPlainText><o:p> </o:p></p><p class=MsoPlainText> blackhole { 212.107.121.110; };<o:p></o:p></p><p class=MsoPlainText><o:p> </o:p></p><p class=MsoPlainText>Tony.<o:p></o:p></p><p class=MsoPlainText>--<o:p></o:p></p><p class=MsoPlainText>f.anthony.n.finch <<a href="mailto:dot@dotat.at"><span style='color:windowtext;text-decoration:none'>dot@dotat.at</span></a>> <a href="http://dotat.at/"><span style='color:windowtext;text-decoration:none'>http://dotat.at/</span></a> - I xn--zr8h punycode Forties, Cromarty, Forth, Tyne, Dogger: West or southwest 4 or 5. Slight, occasionally moderate at first. Rain or showers. Good, occasionally moderate.<o:p></o:p></p></div></body></html>