<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
</head>
<body text="#000000" bgcolor="#FFFFFF">
<div class="moz-cite-prefix">On 22/05/2019 06:18, 葉科貝 wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CAJmP-QFpm2Ow82sWAgSDgfUKPO=WO0GASh3zxoFyBpZwdjhMfQ@mail.gmail.com">
<div>When I want to add @ cname <a href="http://google.com"
moz-do-not-send="true">google.com</a></div>
<div><br>
</div>
<div>It will display error:RRset <a href="http://beck.idv.tw"
moz-do-not-send="true">beck.idv.tw</a>. IN CNAME: Conflicts
with pre-existing RRset</div>
<div><br>
</div>
<div>How can I resolve this?</div>
</blockquote>
<p>The DNS standard does not allow a CNAME with the same label as
any other resource record; and at the top level of a domain you
have NS and SOA records, so you can't put it there.</p>
<p>The <a moz-do-not-send="true"
href="https://doc.powerdns.com/authoritative/guides/alias.html">ALIAS</a>
functionality is designed for this use case.<br>
</p>
</body>
</html>