<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<style type="text/css" style="display:none;"><!-- P {margin-top:0;margin-bottom:0;} --></style>
</head>
<body dir="ltr">
<div id="divtagdefaultwrapper" style="font-size:12pt;color:#000000;font-family:Calibri,Arial,Helvetica,sans-serif;">
<p></p>
<div>Hello Experts,<br>
<br>
<div>
<div class="post-text" itemprop="text">
<p>I have installed Bind with version: bind-9.9.5P1-2.2.2.x86_64</p>
<p>I have tried these Options on the server to turn off EDNS globally to all the servers in the network we have configured</p>
<pre><code>server 0.0.0.0/0 { edns no; };
server ::/0 { edns no; };
</code></pre>
<p>But I see the DNS Server is sending response with OPT RR</p>
<p>Is there a way to turn edns off?</p>
</div>
<table class="fw">
<tbody>
<tr>
<td class="vt"><br>
</td>
<td class="post-signature owner"><br>
</td>
</tr>
</tbody>
</table>
</div>
<table style="table-layout: fixed;">
<tbody>
<tr>
<td class=" comment-score" style="width: 10px;"> </td>
<td style="width: 3px;"> </td>
</tr>
</tbody>
</table>
<span class="comment-copy">Before anybody asks, why would I need to turn off EDNS, this is to verify the client falling back to TCP in case EDNS is not supported on server, and the server has to send response > 512 bytes, and the client falls back to TCP and
queries the server<br>
<br>
Appreciate any help<br>
<br>
Thanks in advance<br>
Harshith<br>
</span></div>
<br>
<p></p>
</div>
</body>
</html>