<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=us-ascii">
<meta name="Generator" content="Microsoft Word 15 (filtered medium)">
<style><!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Aptos;}
@font-face
{font-family:"Nunito Sans";}
@font-face
{font-family:"Helvetica 75 Bold";}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0cm;
font-size:11.0pt;
font-family:"Aptos",sans-serif;
mso-ligatures:standardcontextual;
mso-fareast-language:EN-US;}
span.EmailStyle17
{mso-style-type:personal-compose;
font-family:"Nunito Sans";
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:11.0pt;
mso-fareast-language:EN-US;}
@page WordSection1
{size:612.0pt 792.0pt;
margin:70.85pt 70.85pt 70.85pt 70.85pt;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
</head>
<body lang="FR" link="#467886" vlink="#96607D" style="word-wrap:break-word">
<div class="WordSection1">
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Nunito Sans"">Hello community,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Nunito Sans""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Nunito Sans"">We are experiencing a resolution problem: 'SERVFAIL error'. Our environment is BIND 9.16.48, OS: Redhat8. I am sharing with you a part of the log that contains this error, named.conf
file.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Nunito Sans""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Nunito Sans"">What I've noticed is that the resolution problem is mainly related to domain names that contain a CNAME record in the response, such as 'account.api.here.com' and 'push-rtmp-l96.douyincdn.com'<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Nunito Sans""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Nunito Sans"">P.S. DNSSEC is temporarily disabled to facilitate the diagnosis of the issue.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Nunito Sans""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Nunito Sans""><o:p> </o:p></span></p>
<p class="MsoNormal">Regards <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<div style="margin-left:5.0pt;margin-top:5.0pt;margin-right:5.0pt;margin-bottom:5.0pt">
<p class="MsoNormal" align="center" style="text-align:center"><span style="font-size:8.0pt;font-family:"Helvetica 75 Bold";color:#ED7D31">Orange Restricted<o:p></o:p></span></p>
</div>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Nunito Sans""><o:p> </o:p></span></p>
</div>
</body>
</html>