<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>Hello,</p>
<p><br>
</p>
<p>We have several Bind recursive servers and all of them stop responding to queries at 10:00 PM daily for 4 minutes starting from <span style="font-family: Calibri, Arial, Helvetica, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", NotoColorEmoji, "Segoe UI Symbol", "Android Emoji", EmojiSymbols; font-size: 16px;">November
1st </span>with the following error in the logs;</p>
<p><br>
</p>
<p>"<span>SOA: got insecure response; parent indicates it should be secure"</span></p>
<p>"<span>DNSKEY: verify failed due to bad signature (keyid=56467): RRSIG has expired"</span></p>
<p><span>"<span>dlv.isc.org SOA: got insecure response; parent indicates it should be secure"</span></span></p>
<p><br>
</p>
<p><br>
</p>
<p>servers running different versions of BIND (9.9 and 910) but all are up to date.</p>
<p>anyone have any idea about this issue ?</p>
<p><br>
</p>
<div id="Signature">Thanks<br>
<div class="ecxmoz-signature">-- <br>
<br>
<font color="#3366ff"><font color="#000000">Respectfully<b><br>
</b><b>Mahdi A. Mahdi</b></font></font><font color="#3366ff"><br>
<br>
</font><font color="#3366ff"></font></div>
</div>
</div>
</body>
</html>